Cisco Systems 102075 Cisco Aironet 802.11n Dual Band Access Points User Manual Cisco Wireless LAN Controller Configuration Guide 2

Cisco Systems Inc Cisco Aironet 802.11n Dual Band Access Points Cisco Wireless LAN Controller Configuration Guide 2

Cisco Wireless LAN Controller Configuration Guide_2

3-47Cisco Wireless LAN Controller Configuration GuideOL-21524-02Chapter 3 Configuring Ports and Interfaces Configuring Multiple AP-Manager InterfacesUsing the CLI to Create Multiple AP-Manager InterfacesTo create multiple AP-manager interfaces using the controller CLI, follow these steps:Step 1 Enter these commands to create a new interface: • config interface create operator_defined_interface_name {vlan_id | x} • config interface address operator_defined_interface_name ip_addr ip_netmask [gateway] • config interface vlan operator_defined_interface_name {vlan_id | 0} • config interface port operator_defined_interface_name physical_ds_port_number • config interface dhcp operator_defined_interface_name ip_address_of_primary_dhcp_server [ip_address_of_secondary_dhcp_server] • config interface quarantine vlan interface_name vlan_idNote Use this command to configure a quarantine VLAN on any interface. • config interface acl operator_defined_interface_name access_control_list_nameNote See Chapter 6, “Configuring Security Solutions,” for more information on ACLs.Step 2 To make this interface an AP-manager interface, enter this command:config interface ap-manager operator_defined_interface_name {enable | disable}Note Only one AP-manager interface is allowed per physical port. A dynamic interface that is marked as an AP-manager interface cannot be used as a WLAN interface.Step 3 To save your changes, enter this command:save configStep 4 Repeat this procedure for each additional AP-manager interface that you want to create.Cisco 5500 Series Controller ExampleFor a Cisco 5500 Series Controller, we recommend having eight dynamic AP-manager interfaces and associating them to the controller’s eight Gigabit ports. If you are using the management interface, which acts like an AP-manager interface by default, you need to create only seven more dynamic AP-manager interfaces and associate them to the remaining seven Gigabit ports. For example, Figure 3-20 shows a dynamic interface that is enabled as a dynamic AP-manager interface and associated to port number 2, and Figure 3-21 shows a Cisco 5500 Series Controller with LAG disabled, the management interface used as one dynamic AP-manager interface, and seven additional dynamic AP-manager interfaces, each mapped to a different Gigabit port.
3-48Cisco Wireless LAN Controller Configuration GuideOL-21524-02Chapter 3 Configuring Ports and Interfaces Configuring Multiple AP-Manager InterfacesFigure 3-20 Dynamic Interface Example with Dynamic AP ManagementFigure 3-21 Cisco 5500 Series Controller Interface Configuration Example
3-49Cisco Wireless LAN Controller Configuration GuideOL-21524-02Chapter 3 Configuring Ports and Interfaces Configuring VLAN SelectConfiguring VLAN SelectWhenever a wireless client connects to a wireless network (WLAN), the client is placed in a VLAN that is associated with the WLAN. Release 7.0.116.0 and prior releases of the controller software enabled you to associate one VLAN with a WLAN. Each VLAN required a single IP subnet. As a result, a WLAN required a large subnet to accommodate more clients. In a large venue such as an auditorium, a stadium, or a conference where there may be numerous wireless clients, having only a single WLAN to accommodate many clients might be a challenge. The VLAN select feature enables you to use a single WLAN that can support multiple VLANs. Clients can get assigned to one of the configured VLANs. This feature enables you to map a WLAN to a single or multiple interface VLANs using interface groups. Wireless clients that associate to the WLAN get an IP address from a pool of subnets identified by the interfaces in round-robin fashion. This feature also extends the current AP group architecture where AP groups can override an interface or interface group to which the WLAN is mapped to, with multiple interfaces using the interface groups. This feature also provides the solution to auto anchor restrictions where a wireless guest user on a foreign location can get an IP address from multiple subnets based on their foreign locations or foreign controllers from the same anchor controller.When a client roams from one controller to another, the foreign controller sends the VLAN information as part of the mobility announce message. Based on the VLAN information received, the anchor decides whether the tunnel should be created between the anchor controller and the foreign controller. If the same VLAN is available on the foreign controller, the client context is completely deleted from the anchor and the foreign controller becomes the new anchor controller for the client.If an interface (int-1) in a subnet is untagged in one controller (Vlan ID 0) and the interface (int-2) in the same subnet is tagged to another controller (Vlan ID 1), then with the VLAN select, client joining the first controller over this interface may not undergo an L2 roam while it moves to the second controller. Hence, for L2 roaming to happen between two controllers with VLAN select, all the interfaces in the same subnet should be either tagged or untagged.As part of the VLAN select feature, the mobility announce message carries an additional vendor payload that contains the list of VLAN inte rfaces in an interface group mapped to a foreign controller’s WLAN. This VLAN list enables the anchor to differentiate from a local to local or local to foreign handoff. Note VLAN pooling applies to wireless clients and locally switched WLANs.This section lists the following topics: • “Platform Support” section on page 3-49 • “Using Interface Groups” section on page 3-50 • “Using Multicast Optimization” section on page 3-52Platform SupportThe following lightweight access points are supported:Cisco Aironet 1120, 1230, 1130, 1040, 1140, 1240, 1250, 1260, 3500, 1522/1524 Access Points, and 800 Series access points.The following controllers are supported:Cisco Flex 7500, Cisco 5508, 4402, 4404, WISM, WiSM-2, 2500, 2106, 2112, 2125 Series Controllers.
3-50Cisco Wireless LAN Controller Configuration GuideOL-21524-02Chapter 3 Configuring Ports and Interfaces Configuring VLAN SelectUsing Interface GroupsInterface groups are logical groups of interfaces. Interface groups facilitate user configuration where the same interface group can be configured on multiple WLANs or while overriding a WLAN interface per AP group. An interface group can exclusively contain either quarantine or nonquarantine interfaces. An interface can be part of multiple interface groups.A WLAN can be associated with an interface or interface group. The interface group name and the interface name cannot be the same.This feature also enables you to associate a client to specific subnets based on the foreign controller that they are connected to. The anchor controller WLAN can be configured to maintain a mapping between foreign controller MAC and a specific interface or interface group (Foreign maps) as needed. If this mapping is not configured, clients on that foreign controller gets VLANs associated in a round robin fashion from interface group configured on WLAN.Table 3-8 lists the platform support for interface and interface groups:This section contains the following topics: • Using the GUI to Create Interface Groups, page 3-50 • Using the CLI to Create Interface Groups, page 3-51 • Using the GUI to Add Interfaces to Interface Groups, page 3-51 • Using the CLI to Add Interfaces to Interface Groups, page 3-52 • Using the GUI to Add an Interface Group to a WLAN, page 3-52 • Using the CLI to Add an Interface Group to a WLAN, page 3-52 • Using the GUI to Configure a Multicast VLAN, page 3-52 • Using the CLI to Configure Multicast VLAN, page 3-53Using the GUI to Create Interface GroupsTo create interface groups using the controller GUI, follow these steps:Step 1 Choose Controller > Interface Groups from the left navigation pane.Ta b l e 3-8 Platform Support for Interface and Interface groupsPlatform Interface GroupsInterfaces per Interface GroupWiSM-2, Cisco 5508 Series Controller, Cisco Flex 7500 Series Controller, Cisco 2500 Series Controller.64 64WiSM, Cisco 4400 Series Controller, Cisco 4200 Series Controllers32 32Cisco 2100 Series Controller and NM6 series 4 4
3-51Cisco Wireless LAN Controller Configuration GuideOL-21524-02Chapter 3 Configuring Ports and Interfaces Configuring VLAN SelectThe Interface Groups page appears with the list of interface groups already created.Note To remove an interface group, hover your mouse pointer over the blue drop-down icon and choose Remove.Step 2 Click Add Group to add a new group.The Add New Interface Group page appears.Step 3 Enter the details of the interface group: • Interface Group Name—Specify the name of the interface group. • Description—Add a brief description of the interface group.Step 4 Click Add.Using the CLI to Create Interface GroupsTo create interface groups using the CLI, use the following commands: • config interface group {create| delete} interface_group_name—Creates or deletes an interface group • config interface group description interface_group_name “description”—Adds a description to the interface groupUsing the GUI to Add Interfaces to Interface GroupsTo add an interface to an interface group, follow these steps:Step 1 Choose Controller > Interface Groups.The Interface Groups page appears with a list of all interface groups.Step 2 Click the name of the interface group to which you want to add interfaces.The Interface Groups > Edit page appears.Step 3 Choose the interface name that you want to add to this interface group from the Interface Name drop-down list.Step 4 Click Add Interface to add the interface to the Interface group.Step 5 Repeat Steps 2 and 3 if you want to add multiple interfaces to this interface group.Note To remove an interface from the interface group, hover your mouse pointer over the blue drop-down arrow and choose Remove.
3-52Cisco Wireless LAN Controller Configuration GuideOL-21524-02Chapter 3 Configuring Ports and Interfaces Using Multicast OptimizationUsing the CLI to Add Interfaces to Interface GroupsTo add interfaces to interface groups, use the config interface group interface add interface_group interface_name command.Using the GUI to Add an Interface Group to a WLANTo add an interface group to a WLAN, follow these steps:Step 1 Choose the WLAN tab.The WLANs page appears listing the available WLANs. Step 2 Click the WLAN ID of the WLAN to which you want to add the interface group.Step 3 In the General tab, choose the interface group from the Interface/Interface Group (G) drop-down list.Step 4 Click Apply.Using the CLI to Add an Interface Group to a WLANTo add an interface group to a WLAN, use the command config wlan interface wlan_id interface_group_name.Using Multicast OptimizationPrior to the 7.0.116.0 release, multicast was based on the grouping of the multicast address and the VLAN as one entity, MGID. With VLAN select and VLAN pooling, there is a possibility that you might increase duplicate packets. With the VLAN select feature, every client listens to the multicast stream on a different VLAN. As a result, the controller creates different MGIDs for each multicast address and VLAN. Therefore, the upstream router sends one copy for each VLAN, which results, in the worst case, in as many copies as there are VLANs in the pool. Since the WLAN is still the same for all clients, multiple copies of the multicast packet are sent over the air. To suppress the duplication of a multicast stream on the wireless medium and between the controller and access points, you can use the multicast optimization feature. Multicast optimization enables you to create a multicast VLAN which you can use for multicast traffic. You can configure one of the VLANs of the WLAN as a multicast VLAN where multicast groups are registered. Clients are allowed to listen to a multicast stream on the multicast VLAN. The MGID is generated using mulicast VLAN and multicast IP addresses. If multiple clients on the VLAN pool of the same WLAN are listening to a single multicast IP address, a single MGID is generated. The controller makes sure that all multicast streams from the clients on this VLAN pool always go out on the multicast VLAN to ensure that the upstream router has one entry for all the VLANs of the VLAN pool. Only one multicast stream hits the VLAN pool even if the clients are on different VLANs. Therefore, the multicast packets that are sent out over the air is just one stream. Using the GUI to Configure a Multicast VLANTo configure a multicast VLAN using the controller GUI, follow these steps:
3-53Cisco Wireless LAN Controller Configuration GuideOL-21524-02Chapter 3 Configuring Ports and Interfaces Using Multicast OptimizationStep 1 Choose the WLANs tab.The WLANs tab appears.Step 2 Click on the WLAN ID of the WLAN that you want to choose for a multicast VLAN.The WLANs > Edit page appearsStep 3 Enable the multicast VLAN feature by selecting the Multicast VLAN feature check box.The Multicast Interface drop-down list appears.Step 4 Choose the VLAN from the Multicast Interface drop-down list.Step 5 Click Apply.Using the CLI to Configure Multicast VLANUse the config wlan multicast interface wlan_id enable interface_name command to configure the multicast VLAN feature.
3-54Cisco Wireless LAN Controller Configuration GuideOL-21524-02Chapter 3 Configuring Ports and Interfaces Using Multicast Optimization
CHAPTER4-1Cisco Wireless LAN Controller Configuration GuideOL-21524-024Configuring Controller SettingsThis chapter describes how to configure settings on the controller. It contains these sections: • Installing and Configuring Licenses, page 4-2 • Configuring 802.11 Bands, page 4-29 • Configuring 802.11n Parameters, page 4-33 • Configuring 802.11h Parameters, page 4-38 • Configuring DHCP Proxy, page 4-39 • Configuring Administrator Usernames and Passwords, page 4-41 • Configuring SNMP, page 4-42 • Changing the Default Values of SNMP Community Strings, page 4-43 • Changing the Default Values for SNMP v3 Users, page 4-45 • Configuring Aggressive Load Balancing, page 4-47 • Configuring Band Selection, page 4-51 • Configuring Fast SSID Changing, page 4-54 • Enabling 802.3X Flow Control, page 4-54 • Configuring 802.3 Bridging, page 4-55 • Configuring Multicast Mode, page 4-57 • Configuring Client Roaming, page 4-62 • Configuring IP-MAC Address Binding, page 4-67 • Configuring Quality of Service, page 4-68 • Configuring Voice and Video Parameters, page 4-75 • Configuring Voice Prioritization Using Preferred Call Numbers, page 4-93 • Configuring EDCA Parameters, page 4-94 • Configuring the Cisco Discovery Protocol, page 4-96 • Configuring Authentication for the Controller and NTP Server, page 4-108 • Configuring RFID Tag Tracking, page 4-109 • Configuring and Viewing Location Settings, page 4-113 • Configuring the Supervisor 720 to Support the WiSM, page 4-121 • Using the Wireless LAN Controller Network Module, page 4-123
4-2Cisco Wireless LAN Controller Configuration GuideOL-21524-02Chapter 4 Configuring Controller SettingsInstalling and Configuring Licenses • Resetting the Controller to Default Settings, page 4-124Installing and Configuring LicensesYou can order Cisco 5500 Series Controllers with support for 12, 25, 50, 100, 250 or 500 access points as the controller’s base capacity. You can add additional access point capacity through capacity adder licenses available at 25, 50, 100 and 250 access point capacities. You can add the capacity adder licenses to any base license in any combination to arrive at the maximum capacity of 500 access points. The base and adder licenses are supported through both rehosting and RMAs.Note These controller platforms do not require licenses: Cisco 2100 and Cisco 4400 Series Controllers, Cisco WiSMs, Controller Network Modules, and Catalyst 3750G Integrated Wireless LAN Controller Switches.Note All features included in a Wireless LAN Controller Wplus license are now included in the base license; this change is introduced in release 6.0.196.0. There are no changes to WCS BASE and PLUS licensing.The base license supports the standard base software set and, for releases 6.0196.0 and later, the premium software set is included as part of the base feature set, which includes this functionality: • Datagram Transport Layer Security (DTLS) data encryption for added security across remote WAN and LAN links. See the “Configuring Data Encryption” section on page 8-2 for more information on data encryption.Note The Availability of data DTLS for the 7.0.116.0 release is as follows: Cisco 5500 Series Controller—The Cisco 5500 Series Controller will be available with two licensing options: One with data DTLS capabilities and another image without data DTLS. 2500, WiSM2, WLC2—These platforms by default will not contain DTLS. To turn on data DTLS, you must install a license. These platforms will have a single image with data DTLS turned off. To use data DTLS you will need to have a license. • Support for OfficeExtend access points, which are used for secure mobile teleworking. See the “OfficeExtend Access Points” section on page 8-69 for more information on OfficeExtend access points. • Support for the 1130AG and 1240AG series indoor mesh access points, which dynamically establish wireless connections in locations where it might be difficult to connect to the wired network. See Chapter 9, “Controlling Mesh Access Points,” for more information on mesh access points.All features included in a Wireless LAN Controller WPLUS license are now included in the base license; this change is introduced in release 6.0.196.0. There are no changes to WCS BASE and PLUS licensing. These WPlus license features are included in the base license: • OfficeExtend AP • Enterprise Mesh • CAPWAP Data Encryption
4-3Cisco Wireless LAN Controller Configuration GuideOL-21524-02Chapter 4 Configuring Controller SettingsInstalling and Configuring LicensesThe licensing change can affect features on your wireless LAN when you upgrade or downgrade software releases, so you should be aware of these guidelines: • If you have a WPlus license and you upgrade from 6.0.x.x to 7.0.98.0, your license file contains both Basic and WPlus license features. You won’t see any disruption in feature availability and operation. • If you have a WPlus license and you downgrade from 7.0.98.0 to 6.0.196.0 or 6.0.188 or 6.0.182, your license file contains only base license, and you will lose all WPlus features. • If you have a base license and you downgrade from 6.0.196.0 to 6.0.188 or 6.0.182, when you downgrade, you lose all WPlus features.To view the controller trap log, choose Monitor and click View All under “Most Recent Traps” on the controller GUI (see Figure 4-1).Note You can also view traps by using SNMP-based management tools.Figure 4-1 Trap Logs PageThe ap-count licenses and their corresponding image-based licenses are installed together. The controller keeps track of the licensed access point count and does not allow more than the number of access points to associate to it.The Cisco 5500 Series Controller is shipped with both permanent and evaluation base and base-ap-count licenses. If desired, you can activate the evaluation licenses, which are designed for temporary use and set to expire after 60 days.Note See the “Choosing the Licensed Feature Set” section on page 4-14 for instructions on activating an image-based evaluation license and the “Activating an AP-Count Evaluation License” section on page 4-17 for instructions on activating an ap-count evaluation license.No licensing steps are required after you receive your Cisco 5500 Series Controller because the licenses you ordered are installed at the factory. In addition, licenses and product authorization keys (PAKs) are preregistered to serial numbers. However, as your wireless network evolves, you might want to add support for additional access points or upgrade from the standard software set to the base software set. To do so, you need to obtain and install an upgrade license.Obtaining an Upgrade or Capacity Adder LicenseA certificate with a product authorization key (PAK) is required before you can obtain an upgrade license.
4-4Cisco Wireless LAN Controller Configuration GuideOL-21524-02Chapter 4 Configuring Controller SettingsInstalling and Configuring LicensesYou can use the capacity adder licenses to increase the number of access points supported by the controller up to a maximum of 500 access points. The capacity adder licenses are available in access point capacities of 10, 25, 50, 100 and 250 access points. You can add these licenses to any of the base capacity licenses of 12, 25, 50, 100 and 250 access points.For example, if your controller was initially ordered with support for 100 access points (base license AIR-CT5508-100-K9), you could increase the capacity to 500 access points by purchasing a 250 access point, 100 access point, and a 50 access point additive capacity license (LIC-CT5508-250A, LIC-CT5508-100A, and LIC-CT5508-50A).You can find more information on ordering capacity adder licenses at this URL: http://www.cisco.com/en/US/products/ps10315/products_data_sheets_list.htmlNote If you skip any tiers when upgrading (for example, if you do not install the -25U and -50U licenses along with the -100U), the license registration fails.For a single controller, you can order different upgrade licenses in one transaction (for example, -25U, -50U, -100U, and -250U), for which you receive one PAK with one license. Then you have only one license (instead of four) to install on your controller.If you have multiple controllers and want to upgrade all of them, you can order multiple quantities of each upgrade license in one transaction (for example, you can order 10 each of the -25U, -50U, -100U, and -250 upgrade licenses), for which you receive one PAK with one license. You can continue to register the PAK for multiple controllers until it is exhausted.Base license SKUs for the Cisco 5500 Series Controllers are as follows: • AIR-CT5508-12-K9 • AIR-CT5508-25-K9 • AIR-CT5508-50-K9 • AIR-CT5508-100-K9 • AIR-CT5508-250-K9 • AIR-CT5508-500-K9 Base license SKUs for the Cisco 2500 Series Controllers are as follows: • AIR-CT2504-5-K9 • AIR-CT2504-15-K9 • AIR-CT2504-25-K9 • AIR-CT2504-50-K9Base license SKUs for the Cisco WiSM2 Controllers are as follows: • WS-SVC-WISM2-1-K9—WiSM2 with 100 AP support. • WS-SVC-WISM2-3-K9—WiSM2 with 300 AP support • WS-SVC-WISM2-5-K9—WiSM2 with 500 AP support
4-5Cisco Wireless LAN Controller Configuration GuideOL-21524-02Chapter 4 Configuring Controller SettingsInstalling and Configuring LicensesTable 4-1 lists the available adder licenses for the 5500 and 2500 Series Controllers:To obtain and register a PAK certificate, follow these steps:Step 1 Order the PAK certificate for an upgrade license through your Cisco channel partner or your Cisco sales representative, or order it online at this URL:Ta b l e 4-1 Available Capacity Adder LicensesType Part Number Descriptione-mail L-LIC-CT5508-UPG Primary upgrade SKU: Pick any number or combination of the following options under this SKU to upgrade one or many controllers under one product authorization keyL-LIC-CT5508-25A 25 AP Adder License for the 5508 Controller (eDelivery)L-LIC-CT5508-50A 50 AP Adder License for the 5508 Controller (eDelivery)L-LIC-CT5508-100A 100 AP Adder License for the 5508 Controller (eDelivery)L-LIC-CT5508-250A 250 AP Adder License for the 5508 Controller (eDelivery)L-LIC-CT2504-UPG Primary upgrade SKU: Pick any number or combination of the following options under this SKU to upgrade one or many controllers under one product authorization keyL-LIC-CT2504-5A 5 AP Adder License for Cisco 2504 Wireless Controller (e-Delivery)L-LIC-CT2504-25A 25 AP Adder License for Cisco 2504 Wireless Controller (e-Delivery)paper LIC-CT5508-UPG Primary upgrade SKU: Pick any number or combination of the following options under this SKU, to upgrade one or many controllers under one product authorization keyLIC-CT5508-25A 25 AP Adder License for the 5508 ControllerLIC-CT5508-50A 50 AP Adder License for the 5508 ControllerLIC-CT5508-100A 100 AP Adder License for the 5508 ControllerLIC-CT5508-250A 250 AP Adder License for the 5508 ControllerLIC-CT2504-UPG Primary upgrade SKU: Pick any number or combination of the following options under this SKU to upgrade one or many controllers under one product authorization keyLIC-CT2504-5A 5 AP Adder License for Cisco 2504 Controller (Paper Certificate - US Mail)LIC-CT2504-25A 25 AP Adder License for Cisco 2504 Controller (Paper Certificate - US Mail)
4-6Cisco Wireless LAN Controller Configuration GuideOL-21524-02Chapter 4 Configuring Controller SettingsInstalling and Configuring Licenseshttp://www.cisco.com/go/orderingStep 2 If you are ordering online, begin by choosing the primary upgrade SKU L-LIC-CT5508-UPG or LIC CT5508-UPG. Then, choose any number of the following options to upgrade one or more controllers under one PAK. Table 4-1 lists the capacity adder licenses available through e-mail or on paper:After you receive the certificate, use one of two methods to register the PAK: • Cisco License Manager (CLM)—This method automates the process of obtaining licenses and deploying them on Cisco devices. For deployments with more than five controllers, we recommend using CLM to register PAKs and install licenses. You can also use CLM to rehost or RMA a license.Note You cannot use CLM to change the licensed feature set or activate an ap-count evaluation license. To perform these operations, you must follow the instructions in the “Choosing the Licensed Feature Set” section on page 4-14 and the “Activating an AP-Count Evaluation License” section on page 4-17. Because you can use CLM to perform all other license operations, you can disregard the remaining licensing information in this chapter except these two sections and the “Configuring the License Agent” section on page 4-26 if you want your controller to use HTTP to communicate with CLM.Note You can download the CLM software and access user documentation at this URL: http://www.cisco.com/go/clm • Licensing portal—This alternative method enables you to manually obtain and install licenses on your controller. If you want to use the licensing portal to register the PAK, follow the instructions in Step 3.Step 3 Use the licensing portal to register the PAK as follows:a. Go to http://tools.cisco.com/SWIFT/Licensing/PrivateRegistrationServletb. On the main Product License Registration page, enter the PAK mailed with the certificate in the Product Authorization Key (PAK) text box and click Submit.c. On the Validate Features page, enter the number of licenses that you want to register in the Qty text box and click Update.d. To determine the controller’s product ID and serial number, choose Controller > Inventory on the controller GUI or enter the show license udi command on the controller CLI.Information similar to the following appears on the controller CLI:Device# PID SN UDI------- -------------------- ----------------------- ---------------------------------*0 AIR-CT5508-K9 FCW1308L030 AIR-CT5508-K9:FCW1308L030 e. On the Designate Licensee page, enter the product ID and serial number of the controller on which you plan to install the license, read and accept the conditions of the end-user license agreement (EULA), complete the rest of the text boxes on this page, and click Submit.f. On the Finish and Submit page, verify that all information is correct and click Submit.g. When a message appears indicating that the registration is complete, click Download License. The license is e-mailed within 1 hour to the address that you specified.h. When the e-mail arrives, follow the instructions provided.i. Copy the license file to your TFTP server.
4-7Cisco Wireless LAN Controller Configuration GuideOL-21524-02Chapter 4 Configuring Controller SettingsInstalling and Configuring Licensesj. Follow the instructions in the “Installing a License” section below to install the license on your controller.Installing a LicenseYou can use the controller GUI or CLI to install a license on a Cisco 5500 Series Controller.Using the GUI to Install a LicenseTo install a license on the controller using the controller GUI, follow these steps:Step 1 Choose Management > Software Activation > Commands to open the License Commands page (see Figure 4-2).Figure 4-2 License Commands PageStep 2 From the Action drop-down list, choose Install License. The Install License from a File section appears (see Figure 4-3).Figure 4-3 License Commands (Install License) Page
4-8Cisco Wireless LAN Controller Configuration GuideOL-21524-02Chapter 4 Configuring Controller SettingsInstalling and Configuring LicensesStep 3 In the File Name to Install text box, enter the path to the license (*.lic) on the TFTP server.Step 4 Click Install License. A message appears to show whether the license was installed successfully. If the installation fails, the message provides the reason for the failure, such as the license is an existing license, the path was not found, the license does not belong to this device, you do not have correct permissions for the license, and so on.Step 5 If the end-user license agreement (EULA) acceptance dialog box appears, read the agreement and click Accept to accept the terms of the agreement.Note Typically, you are prompted to accept the EULA for evaluation, extension, and rehost licenses. The EULA is also required for permanent licenses, but it is accepted during license generation.Step 6 Save a backup copy of all installed licenses as follows:a. From the Action drop-down list, choose Save License.b. In the File Name to Save text box, enter the path on the TFTP server where you want the licenses to be saved.Note You cannot save evaluation licenses.c. Click Save Licenses.Step 7 Reboot the controller.Step 8 Follow the instructions in the “Viewing Licenses” section on page 4-9 to see the status of the license that you installed.Step 9 If the desired license is not being used by the controller, follow the instructions in the “Choosing the Licensed Feature Set” section on page 4-14 or the “Activating an AP-Count Evaluation License” section on page 4-17 to change the license that is used by the controller.Using the CLI to Install a LicenseTo install a license on the controller using the controller CLI, follow these steps:Step 1 Install a license on the controller by entering this command:license install urlwhere url is tftp://server_ip/path/filename.Note To remove a license from the controller, enter the license clear license_name command. For example, you might want to delete an expired evaluation license or any unused license. You cannot delete unexpired evaluation licenses, the permanent base image license, or licenses that are in use by the controller.Step 2 If you are prompted to accept the end-user license agreement (EULA), read and accept the terms of the agreement.
4-9Cisco Wireless LAN Controller Configuration GuideOL-21524-02Chapter 4 Configuring Controller SettingsInstalling and Configuring LicensesNote Typically, you are prompted to accept the EULA for evaluation, extension, and rehost licenses. The EULA is also required for permanent licenses, but it is accepted during license generation.Step 3 Add comments to a license or delete comments from a license by entering this command:license comment {add | delete} license_name comment_stringStep 4 Save a backup copy of all installed licenses by entering this command:license save urlwhere url is tftp://server_ip/path/filename.Step 5 Reboot the controller by entering this command:reset systemStep 6 Follow the instructions in the “Viewing Licenses” section on page 4-9 to see the status of the license you installed.Step 7 If the desired license is not being used by the controller, follow the instructions in the “Choosing the Licensed Feature Set” section on page 4-14 or the “Activating an AP-Count Evaluation License” section on page 4-17 to change the license that is used by the controller.Viewing LicensesThis section describes how to view the licenses on the controller.Using the GUI to View LicensesTo view licenses on the controller using the controller GUI, follow these steps:Step 1 Choose Management > Software Activation > Licenses to open the Licenses page (see Figure 4-4).
4-10Cisco Wireless LAN Controller Configuration GuideOL-21524-02Chapter 4 Configuring Controller SettingsInstalling and Configuring LicensesFigure 4-4 Licenses PageThis page lists all of the licenses installed on the controller. For each license, it shows the license type, expiration, count (the maximum number of access points allowed for this license), priority (low, medium, or high), and status (in use, not in use, inactive, or EULA not accepted).Note Controller platforms do not support the status of “grace period” or “extension” as a license type. The license status will always show “evaluation” even if a grace period or an extension evaluation license is installed.Note If you ever want to remove a license from the controller, hover your cursor over the blue drop-down arrow for the license and click Remove. For example, you might want to delete an expired evaluation license or any unused license. You cannot delete unexpired evaluation licenses, the permanent base image license, or licenses that are in use by the controller.Step 2 Click the link for the desired license to view more details for a particular license. The License Detail page appears (see Figure 4-5).
4-11Cisco Wireless LAN Controller Configuration GuideOL-21524-02Chapter 4 Configuring Controller SettingsInstalling and Configuring LicensesFigure 4-5 License Detail PageThis page shows the following additional information for the license: • The license type (permanent, evaluation, or extension) • The license version • The status of the license (in use, not in use, inactive, or EULA not accepted) • The length of time before the license expiresNote Permanent licenses never expire. • Whether the license is a built-in license • The maximum number of access points allowed for this license • The number of access points currently using this licenseStep 3 If you want to enter a comment for this license, type it in the Comment text box and click Apply.Step 4 Click Save Configuration to save your changes.Using the CLI to View LicensesTo view licenses on the controller, use these commands: • See the license level, license type, and number of access points licensed on the controller by entering this command:show sysinfoInformation similar to the following appears:Manufacturer's Name.............................. Cisco Systems Inc.Product Name..................................... Cisco ControllerProduct Version.................................. 7.0RTOS Version..................................... 7.0Bootloader Version............................... 5.2Emergency Image Version.......................... N/ABuild Type....................................... DATA + WPSSystem Name...................................... Cisco 69
4-12Cisco Wireless LAN Controller Configuration GuideOL-21524-02Chapter 4 Configuring Controller SettingsInstalling and Configuring LicensesSystem Location.................................. naSystem Contact................................... abc@cisco.comSystem ObjectID.................................. 1.3.6.1.4.1.14179.1.1.4.3IP Address....................................... 10.10.10.10System Up Time................................... 3 days 1 hrs 12 mins 42 secsSystem Timezone Location.........................CurrentBoot License Level..........................baseCurrentBoot License Type...........................PermanentNextBoot License Level............................baseNextBoot License Type.............................PermanentOperating Environment............................ Commercial (0 to 40 C)Internal Temp Alarm Limits....................... 0 to 65 CInternal Temperature............................. +40 CState of 802.11b Network......................... EnabledState of 802.11a Network......................... EnabledNumber of WLANs.................................. 4Number of Active Clients......................... 0Burned-in MAC Address............................ 00:1A:6D:DD:1E:40Crypto Accelerator 1............................. AbsentCrypto Accelerator 2............................. AbsentPower Supply 1................................... AbsentPower Supply 2................................... Present, OKMaximum number of APs supported.................. 12 • See a brief summary of all active licenses installed on the controller by entering this command:show license summaryInformation similar to the following appears:Index 1 Feature: wplus Period left: 0 minute 0 secondIndex 2 Feature: wplus-ap-countPeriod left: 0 minute 0 secondIndex3 Feature: basePeriod left: Life timeLicense Type: PermanentLicense State: Active, In UseLicense Count: Non-CountedLicense Priority: MediumIndex 4 Feature: base-ap-countPeriod left: 6 weeks, 4 daysLicense Type: EvaluationLicense State: Active, In UseLicense Count: 250/250/0License Priority: High • See all of the licenses installed on the controller by entering this command:show license allInformation similar to the following appears:License Store: Primary License StorageStoreIndex: 1 Feature: base Version: 1.0 License Type: Permanent License State: Active, Not in Use License Count: Non-Counted License Priority: MediumStoreIndex: 3 Feature: base-ap-count Version: 1.0 License Type: Evaluation License State: Active, In Use Evaluation total period: 8 weeks 4 days Evaluation period left: 8 weeks 3 days
4-13Cisco Wireless LAN Controller Configuration GuideOL-21524-02Chapter 4 Configuring Controller SettingsInstalling and Configuring Licenses License Count: 250/0/0 License Priority: High • See the details for a particular license by entering this command:show license detail license_nameInformation similar to the following appears:Index: 1 Feature: base-ap-count Version: 1.0 License Type: Permanent License State: Active, Not in Use License Count: 12/0/0 License Priority: Medium Store Index: 0 Store Name: Primary License StorageIndex: 2 Feature: base-ap-count Version: 1.0 License Type: Evaluation License State: Inactive Evaluation total period: 8 weeks 4 days Evaluation period left: 8 weeks 4 days License Count: 250/0/0 License Priority: Low Store Index: 3 Store Name: Evaluation License Storage • See all expiring, evaluation, permanent, or in-use licenses by entering this command:show license {expiring | evaluation | permanent | in-use}Information similar to the following appears for the show license in-use command:StoreIndex: 2 Feature: base-ap-count Version: 1.0 License Type: Permanent License State: Active, In Use License Count: 12/12/0 License Priority: MediumStoreIndex: 3 Feature: base Version: 1.0 License Type: Permanent License State: Active, In Use License Count: Non-Counted License Priority: MediumNote Controller platforms do not support the status of “grace period” or “extension” as a license type. The license status will always show “evaluation” even if a grace period or an extension evaluation license is installed. • See the maximum number of access points allowed for this license on the controller, the number of access points currently joined to the controller, and the number of access points that can still join the controller by entering this command:show license capacityInformation similar to the following appears:Licensed Feature Max Count Current Count Remaining Count----------------- --------------- ------------------- --------------------AP Count 250 4 246 • See statistics for all licenses on the controller by entering this command:show license statisticsInformation similar to the following appears:
4-14Cisco Wireless LAN Controller Configuration GuideOL-21524-02Chapter 4 Configuring Controller SettingsInstalling and Configuring LicensesAdministrative statistics Install success count: 2 Install failure count: 0 Install duplicate count: 0 Comment add count: 0 Comment delete count: 0 Clear count: 0 Save count: 2 Save cred count: 0Client status Request success count 2 Request failure count 0 Release count 0 Global Notify count 6 • See a summary of license-enabled features by entering this command:show license featureInformation similar to the following appears:Feature name Enforcement Evaluation Clear Allowed Enabled base yes yes yes yes base-ap-count yes yes yes no Choosing the Licensed Feature SetYou can configure the controller to specify which feature set it uses (base or wplus). Only the base or wplus license can be active at a time. The currently active license determines the feature set and number of access points supported on the controller.Using the GUI to Choose the Licensed Feature SetTo specify the feature set for the controller using the controller GUI, follow these steps:Step 1 Choose Management > Software Activation > License Level to open the License Level page (see Figure 4-6).
4-15Cisco Wireless LAN Controller Configuration GuideOL-21524-02Chapter 4 Configuring Controller SettingsInstalling and Configuring LicensesFigure 4-6 License Level PageThis page shows the current license level and the level to be used after the next controller reboot. It also shows the maximum number of access points allowed by the license on the controller, the number of access points currently joined to the controller, and the number of access points that can still join the controller.Step 2 Click the base license level link to open the Licenses page (see Figure 4-7) to learn more about the available license levels.Figure 4-7 Licenses PageThis page shows the licenses applicable to this level and the list of features supported.Step 3 Click Back to return to the License Level page.Step 4 If you want to change the license level, follow these steps:a. Choose the license level to be used on the next reboot: base, wplus, or auto. If you choose auto, the licensing software automatically chooses the license level to use on the next reboot. It chooses permanent licenses over evaluation licenses.
4-16Cisco Wireless LAN Controller Configuration GuideOL-21524-02Chapter 4 Configuring Controller SettingsInstalling and Configuring LicensesNote To prevent disruptions in operation, the controller does not switch licenses when an evaluation license expires. You must reboot the controller in order to return to a permanent license. Following a reboot, the controller defaults to the same feature set level as the expired evaluation license. If no permanent license at the same feature set level is installed, the controller uses a permanent license at another level or an unexpired evaluation license. If no valid licenses are installed, the controller can always operate in base level.b. Click Activate.c. Click OK when prompted to confirm your decision to change the license level on the next reboot.d. If you are prompted to accept the end-user license agreement (EULA), read and accept the terms of the agreement and then click Accept. The Next Boot Level text box now shows the license level that you specified as the level to be used after the next controller reboot.e. Reboot the controller so that the specified license level takes effect.Using the CLI to Choose the Licensed Feature SetTo specify the feature set for the controller using the controller CLI, follow these steps:Step 1 See the current license level and the level to be used after the next controller reboot by entering this command:show sysinfoInformation similar to the following appears:Product Name..................................... Cisco ControllerProduct Version.................................. 6.0.118.0...Current Boot License Level....................... wplusCurrent Boot License Type........................ PermanentNext Boot License Level.......................... wplusNext Boot License Type........................... Permanent...Step 2 Specify the license level to be used on the next reboot by entering this command:config license boot {base | wplus | auto}If you choose auto, the licensing software automatically chooses the license level to use on the next reboot. It chooses permanent licenses over evaluation licenses.Note To prevent disruptions in operation, the controller does not switch licenses when an evaluation license expires. You must reboot the controller in order to return to a permanent license. Following a reboot, the controller defaults to the same feature set level as the expired evaluation license. If no permanent license at the same feature set level is installed, the controller uses a permanent license at another level or an unexpired evaluation license.Step 3 If you are prompted to accept the end-user license agreement (EULA), read and accept the terms of the agreement. The EULA appears if no permanent licenses are installed at the specified boot level and the evaluation license has not yet been activated. In this case, the config license boot command changes the license level and activates the evaluation license following a reboot.
4-17Cisco Wireless LAN Controller Configuration GuideOL-21524-02Chapter 4 Configuring Controller SettingsInstalling and Configuring LicensesStep 4 See the license level to be used after the next controller reboot by entering this command:show sysinfoStep 5 Reboot the controller in order to have your changes take effect by entering this command:reset systemActivating an AP-Count Evaluation LicenseIf you are considering upgrading to a license with a higher access point count, you can try an evaluation license before upgrading to a permanent version of the license. For example, if you are using a permanent license with a 50-access-point count and want to try an evaluation license with a 100-access-point count, you can try out the evaluation license for 60 days.AP-count evaluation licenses are set to low priority by default so that the controller uses the ap-count permanent license. If you want to try an evaluation license with an increased access point count, you must change its priority to high. If you no longer want to have this higher capacity, you can lower the priority of the ap-count evaluation license, which forces the controller to use the permanent license.Note To prevent disruptions in operation, the controller does not switch licenses when an evaluation license expires. You must reboot the controller in order to return to a permanent license. Following a reboot, the controller defaults to the same feature set level as the expired evaluation license. If no permanent license at the same feature set level is installed, the controller uses a permanent license at another level or an unexpired evaluation license.You can activate ap-count evaluation licenses using the controller GUI or CLI.Using the GUI to Activate an AP-Count Evaluation LicenseTo activate an ap-count evaluation license using the controller GUI, follow these steps:Step 1 Choose Management > Software Activation > Licenses to open the Licenses page (see Figure 4-8).
4-18Cisco Wireless LAN Controller Configuration GuideOL-21524-02Chapter 4 Configuring Controller SettingsInstalling and Configuring LicensesFigure 4-8 Licenses PageThe Status column shows which licenses are currently in use, and the Priority column shows the current priority of each license.Step 2 Activate an ap-count evaluation license as follows:a. Click the link for the ap-count evaluation license that you want to activate. The License Detail page appears (see Figure 4-9).Figure 4-9 License Detail Pageb. Choose High from the Priority drop-down list and click Set Priority.Note You can set the priority only for ap-count evaluation licenses. AP-count permanent licenses always have a medium priority, which cannot be configured.c. Click OK when prompted to confirm your decision about changing the priority of the license.d. When the EULA appears, read the terms of the agreement and then click Accept.e. When prompted to reboot the controller, click OK.
4-19Cisco Wireless LAN Controller Configuration GuideOL-21524-02Chapter 4 Configuring Controller SettingsInstalling and Configuring Licensesf. Reboot the controller in order for the priority change to take effect.g. Click Licenses to open the Licenses page and verify that the ap-count evaluation license now has a high priority and is in use. You can use the evaluation license until it expires. Step 3 If you decide to stop using the ap-count evaluation license and want to revert to using an ap-count permanent license, follow these steps:a. On the Licenses page, click the link for the ap-count evaluation license that is in use.b. Choose Low from the Priority drop-down list and click Set Priority.Note You can set the priority only for ap-count evaluation licenses. AP-count permanent licenses always have a medium priority, which cannot be configured.c. Click OK when prompted to confirm your decision about changing the priority of the license.d. When the EULA appears, read the terms of the agreement and then click Accept.e. When prompted to reboot the controller, click OK.f. Reboot the controller in order for the priority change to take effect.g. Click Licenses to open the Licenses page and verify that the ap-count evaluation license now has a low priority and is not in use. Instead, the ap-count permanent license should be in use.Using the CLI to Activate an AP-Count Evaluation LicenseTo activate an ap-count evaluation license using the controller CLI, follow these steps:Step 1 See the current status of all the licenses on your controller by entering this command:show license allInformation similar to the following appears:License Store: Primary License StorageStoreIndex: 0 Feature: base-ap-count Version: 1.0 License Type: Permanent License State: Active, In Use License Count: 12/0/0 License Priority: MediumStoreIndex: 1 Feature: base Version: 1.0 License Type: Permanent License State: Active, In Use License Count: Non-Counted License Priority: MediumStoreIndex: 2 Feature: base Version: 1.0 License Type: Evaluation License State: Inactive Evaluation total period: 8 weeks 4 days Evaluation period left: 8 weeks 4 days License Count: Non-Counted License Priority: LowStoreIndex: 3 Feature: base-ap-count Version: 1.0 License Type: Evaluation License State: Inactive Evaluation total period: 8 weeks 4 days Evaluation period left: 8 weeks 4 days License Count: 250/0/0
4-20Cisco Wireless LAN Controller Configuration GuideOL-21524-02Chapter 4 Configuring Controller SettingsInstalling and Configuring Licenses License Priority: Low The License State text box shows the licenses that are in use, and the License Priority text box shows the current priority of each license.Step 2 Activate an ap-count evaluation license as follows:a. To raise the priority of the base-ap-count evaluation license, enter this command:license modify priority license_name highNote You can set the priority only for ap-count evaluation licenses. AP-count permanent licenses always have a medium priority, which cannot be configured.b. To reboot the controller in order for the priority change to take effect, enter this command:reset systemc. To verify that the ap-count evaluation license now has a high priority and is in use, enter this command:show license allYou can use the evaluation license until it expires.Step 3 If you decide to stop using the ap-count evaluation license and want to revert to using an ap-count permanent license, follow these steps:a. To lower the priority of the ap-count evaluation license, enter this command:license modify priority license_name lowb. To reboot the controller in order for the priority change to take effect, enter this command:reset systemc. To verify that the ap-count evaluation license now has a low priority and is not in use, enter this command:show license allInstead, the ap-count permanent license should be in use.Rehosting a LicenseRevoking a license from one controller and installing it on another is called rehosting. You might want to rehost a license in order to change the purpose of a controller. For example, if you want to move your OfficeExtend or indoor mesh access points to a different controller, you could transfer the base license from one controller to another.In order to rehost a license, you must generate credential information from the controller and use it to obtain a permission ticket to revoke the license from the Cisco licensing site. Next, you must obtain a rehost ticket and use it to obtain a license installation file for the controller on which you want to install the license.Evaluation licenses and the permanent base image license cannot be rehosted.Note A revoked license cannot be reinstalled on the same controller.
4-21Cisco Wireless LAN Controller Configuration GuideOL-21524-02Chapter 4 Configuring Controller SettingsInstalling and Configuring LicensesUsing the GUI to Rehost a LicenseTo rehost a license using the controller GUI, follow these steps:Step 1 Choose Management > Software Activation > Commands to open the License Commands page.Step 2 From the Action drop-down list, choose Rehost. The Revoke a License from the Device and Generate Rehost Ticket area appears (see Figure 4-10).Figure 4-10 License Commands (Rehost) PageStep 3 In the File Name to Save Credentials text box, enter the path on the TFTP server where you want the device credentials to be saved and click Save Credentials.Step 4 To obtain a permission ticket to revoke the license, follow these steps:a. Click Cisco Licensing (https://tools.cisco.com/SWIFT/Licensing/PrivateRegistrationServlet). The Product License Registration page appears (see Figure 4-11).
4-22Cisco Wireless LAN Controller Configuration GuideOL-21524-02Chapter 4 Configuring Controller SettingsInstalling and Configuring LicensesFigure 4-11 Product License Registration Pageb. Under Manage Licenses, click Look Up a License.c. Enter the product ID and serial number for your controller.Note To find the controller’s product ID and serial number, choose Controller > Inventory on the controller GUI.d. Open the device credential information file that you saved in Step 3 and copy and paste the contents of the file into the Device Credentials text box.e. Enter the security code in the blank box and click Continue.
4-23Cisco Wireless LAN Controller Configuration GuideOL-21524-02Chapter 4 Configuring Controller SettingsInstalling and Configuring Licensesf. Choose the licenses that you want to revoke from this controller and click Start License Transfer.g. On the Rehost Quantities page, enter the number of licenses that you want to revoke in the To Rehost text box and click Continue.h. On the Designate Licensee page, enter the product ID and serial number of the controller for which you plan to revoke the license, read and accept the conditions of the end-user license agreement (EULA), complete the rest of the text boxes on this page, and click Continue.i. On the Review and Submit page, verify that all information is correct and click Submit.j. When a message appears indicating that the registration is complete, click Download Permission Ticket. The rehost permission ticket is e-mailed within 1 hour to the address that you specified.k. After the e-mail arrives, copy the rehost permission ticket to your TFTP server.Step 5 Use the rehost permission ticket to revoke the license from this controller and generate a rehost ticket as follows:a. In the Enter Saved Permission Ticket File Name text box, enter the TFTP path and filename (*.lic) for the rehost permission ticket that you generated in Step 4.b. In the Rehost Ticket File Name text box, enter the TFTP path and filename (*.lic) for the ticket that will be used to rehost this license on another controller.c. Click Generate Rehost Ticket.d. When the end-user license agreement (EULA) acceptance dialog box appears, read the agreement and click Accept to accept the terms of the agreement.Step 6 Use the rehost ticket generated in Step 5 to obtain a license installation file, which can then be installed on another controller as follows:a. Click Cisco Licensing.b. On the Product License Registration page, click Upload Rehost Ticket under Manage Licenses.c. On the Upload Ticket page, enter the rehost ticket that you generated in Step 5 in the Enter Rehost Ticket text box and click Continue.d. On the Validate Features page, verify that the license information for your controller is correct, enter the rehost quantity, and click Continue.e. On the Designate Licensee page, enter the product ID and serial number of the controller on which you plan to use the license, read and accept the conditions of the end-user license agreement (EULA), complete the rest of the text boxes on this page, and click Continue.f. On the Review and Submit page, verify that all information is correct and click Submit.g. When a message appears indicating that the registration is complete, click Download License. The rehost license key is e-mailed within 1 hour to the address that you specified.h. After the e-mail arrives, copy the rehost license key to your TFTP server.i. Follow the instructions in the “Installing a License” section on page 4-7 to install this license on another controller.Using the CLI to Rehost a LicenseTo rehost a license using the controller CLI, follow these steps:Step 1 Save device credential information to a file by entering this command:
4-24Cisco Wireless LAN Controller Configuration GuideOL-21524-02Chapter 4 Configuring Controller SettingsInstalling and Configuring Licenseslicense save credential urlwhere url is tftp://server_ip/path/filename.Step 2 Obtain a permission ticket to revoke the license as follows:a. Go to https://tools.cisco.com/SWIFT/Licensing/PrivateRegistrationServlet. The Product License Registration page appears (see Figure 4-11).b. Under Manage Licenses, click Look Up a License.c. Enter the product ID and serial number for your controller.Note To find the controller’s product ID and serial number, enter the show license udi command on the controller CLI.d. Open the device credential information file that you saved in Step 1 and copy and paste the contents of the file into the Device Credentials text box.e. Enter the security code in the blank box and click Continue.f. Choose the licenses that you want to revoke from this controller and click Start License Transfer.g. On the Rehost Quantities page, enter the number of licenses that you want to revoke in the To Rehost text box and click Continue.h. On the Designate Licensee page, enter the product ID and serial number of the controller for which you plan to revoke the license, read and accept the conditions of the end-user license agreement (EULA), complete the rest of the text boxes on this page, and click Continue.i. On the Review and Submit page, verify that all information is correct and click Submit.j. When a message appears indicating that the registration is complete, click Download Permission Ticket. The rehost permission ticket is e-mailed within 1 hour to the address that you specified.k. After the e-mail arrives, copy the rehost permission ticket to your TFTP server.Step 3 Use the rehost permission ticket to revoke the license from this controller and generate a rehost ticket as follows:a. To revoke the license from the controller, enter this command:license revoke permission_ticket_urlwhere permission_ticket_url is tftp://server_ip/path/filename.b. To generate the rehost ticket, enter this command:license revoke rehost rehost_ticket_urlwhere rehost_ticket_url is tftp://server_ip/path/filename.c. If prompted, read and accept the terms of the end-user license agreement (EULA).Step 4 Use the rehost ticket generated in Step 3 to obtain a license installation file, which can then be installed on another controller as follows:a. Go to https://tools.cisco.com/SWIFT/Licensing/PrivateRegistrationServlet.b. On the Product License Registration page, click Upload Rehost Ticket under Manage Licenses.c. On the Upload Ticket page, enter the rehost ticket that you generated in Step 3 in the Enter Rehost Ticket text box and click Continue.d. On the Validate Features page, verify that the license information for your controller is correct, enter the rehost quantity, and click Continue.
4-25Cisco Wireless LAN Controller Configuration GuideOL-21524-02Chapter 4 Configuring Controller SettingsInstalling and Configuring Licensese. On the Designate Licensee page, enter the product ID and serial number of the controller on which you plan to use the license, read and accept the conditions of the end-user license agreement (EULA), complete the rest of the text boxes on this page, and click Continue.f. On the Review and Submit page, verify that all information is correct and click Submit.g. When a message appears indicating that the registration is complete, click Download License. The rehost license key is e-mailed within 1 hour to the address that you specified.h. After the e-mail arrives, copy the rehost license key to your TFTP server.i. Follow the instructions in the “Installing a License” section on page 4-7 to install this license on another controller.Transferring Licenses to a Replacement Controller after an RMAIf you return a Cisco 5500 Series Controller to Cisco as part of the Return Material Authorization (RMA) process, you must transfer that controller’s licenses within 60 days to a replacement controller that you receive from Cisco.Replacement controllers come preinstalled with the following licenses: permanent base and evaluation base, base-ap-count. No other permanent licenses are installed. The SKU for replacement controllers is AIR-CT5508-CA-K9.Because licenses are registered to the serial number of a controller, you can use the licensing portal on Cisco.com to request that the license from your returned controller be revoked and authorized for use on the replacement controller. After your request is approved, you can install the old license on the replacement controller. Before you begin, you need the product ID and serial number of both the returned controller and the replacement controller. This information is included in your purchase records.Note The evaluation licenses on the replacement controller are designed for temporary use and expire after 60 days. To prevent disruptions in operation, the controller does not switch licenses when an evaluation license expires. You must reboot the controller in order to return to a permanent license. If the evaluation licenses expire before you transfer the permanent licenses from your defective controller to your replacement controller, the replacement controller remains up and running using the permanent base license, but access points are no longer able to join the controller.To transfer a license to a replacement controller after an RMA, follow these steps:Step 1 Go to https://tools.cisco.com/SWIFT/Licensing/PrivateRegistrationServlet.Step 2 On the main Product License Registration page, click Register for an RMA License under RMA License Transfer.Step 3 In the Select a Product drop-down list, choose Cisco 5500 Series Wireless Controllers.Step 4 Enter the security code in the blank box and click Go to RMA Portal.Step 5 On the RMA License Transfer page, enter the product ID and serial number of the controller that you returned and your RMA service contract number, and click Continue.Step 6 On the Validate Features page, verify that the license information for your controller is correct, and click Continue.Step 7 On the Designate Licensee page, enter the product ID and serial number of the replacement controller.
4-26Cisco Wireless LAN Controller Configuration GuideOL-21524-02Chapter 4 Configuring Controller SettingsInstalling and Configuring LicensesStep 8 Read and accept the conditions of the end-user license agreement (EULA), complete the rest of the text boxes on this page, and click Submit.Step 9 On the Review and Submit page, verify that all information is correct and click Submit. A message appears indicating that your registration request has been submitted, and you will receive an e-mail that contains your RMA request ID.Step 10 Select the status of your RMA registration request by following the instructions in the e-mail.Step 11 After you receive another e-mail notifying you that your RMA registration request is approved (usually within 1 hour), follow the instructions in the “Installing a License” section on page 4-7 to install the license on the replacement controller.Configuring the License AgentIf your network contains various Cisco-licensed devices, you might want to consider using the Cisco License Manager (CLM) to manage all of the licenses using a single application. CLM is a secure client/server application that manages Cisco software licenses network wide.The license agent is an interface module that runs on the controller and mediates between CLM and the controller’s licensing infrastructure. CLM can communicate with the controller using various channels, such as HTTP, Telnet, and so on. If you want to use HTTP as the communication method, you must enable the license agent on the controller.The license agent receives requests from CLM and translates them into license commands. It also sends notifications to CLM. It uses XML messages over HTTP or HTTPS to receive the requests and send the notifications. For example, CLM sends a license install command, and the agent notifies CLM after the license expires.Note You can download the CLM software and access user documentation at this URL: http://www.cisco.com/go/clmUsing the GUI to Configure the License AgentTo configure the license agent on the controller using the controller GUI, follow these steps:Step 1 Choose Management > Software Activation > License Agent to open the License Agent Configuration page (see Figure 4-12).
4-27Cisco Wireless LAN Controller Configuration GuideOL-21524-02Chapter 4 Configuring Controller SettingsInstalling and Configuring LicensesFigure 4-12 License Agent Configuration PageStep 2 Select the Enable Default Authentication check box to enable the license agent, or leave it unselected to disable this feature. The default value is unselected.Step 3 In the Maximum Number of Sessions text box, enter the maximum number of sessions for the license agent. The valid range is 1 to 25 sessions (inclusive).Step 4 Configure the license agent to listen for requests from the CLM as follows:a. Select the Enable Listener check box to enable the license agent to receive license requests from the CLM, or unselect this check box to disable this feature. The default value is unselected.b. In the Listener Message Processing URL text box, enter the URL where the license agent receives license requests (for example, http://209.165.201.30/licenseAgent/custom). The Protocol parameter indicates whether the URL requires HTTP or HTTPS.Note You can specify the protocol to use on the HTTP Configuration page. See the “Enabling Web and Secure Web Modes” section on page 2-18 for more information.c. Select the Enable Authentication for Listener check box to enable authentication for the license agent when it is receiving license requests, or unselect this check box to disable this feature. The default value is unselected.d. In the Max HTTP Message Size text box, enter the maximum size for license requests. The valid range is 0 to 9999 bytes, and the default value is 0.Step 5 Configure the license agent to send license notifications to the CLM as follows:a. Select the Enable Notification check box to enable the license agent to send license notifications to the CLM, or unselect this check box to disable this feature. The default value is unselected.b. In the URL to Send the Notifications text box, enter the URL where the license agent sends the notifications (for example, http://www.cisco.com/license/notify). c. In the User Name text box, enter the username required in order to view the notification messages at this URL.
4-28Cisco Wireless LAN Controller Configuration GuideOL-21524-02Chapter 4 Configuring Controller SettingsInstalling and Configuring Licensesd. In the Password and Confirm Password text boxes, enter the password required in order to view the notification messages at this URL.Step 6 Click Apply to commit your changes.Step 7 Click Save Configuration to save your changes.Using the CLI to Configure the License AgentTo configure the license agent on the controller using the controller CLI, follow these steps:Step 1 Enable the license agent by entering one of these commands: • config license agent default authenticate—Enables the license agent default listener with authentication. • config license agent default authenticate none—Enables the license agent default listener without authentication.Note To disable the license agent default listener, enter the config license agent default disable command. The default value is disabled.Step 2 Specify the maximum number of sessions for the license agent by entering this command:config license agent max-sessions sessionsThe valid range for the sessions parameter is 1 to 25 (inclusive), and the default value is 9.Step 3 Enable the license agent to receive license requests from the CLM and to specify the URL where the license agent receives the requests by entering this command:config license agent listener http {plaintext | encrypt} url authenticate [none] [max-message size] [acl acl]The valid range for the size parameter is 0 to 65535 bytes, and the default value is 0.Note To prevent the license agent from receiving license requests from the CLM, enter the config license agent listener http disable command. The default value is disabled.Step 4 Configure the license agent to send license notifications to the CLM and to specify the URL where the license agent sends the notifications by entering this command:config license agent notify url username passwordNote To prevent the license agent from sending license notifications to the CLM, enter the config license agent notify disable username password command. The default value is disabled.Step 5 Save your changes by entering this command:save configStep 6 See statistics for the license agent’s counters or sessions by entering this command:show license agent {counters | sessions}
4-29Cisco Wireless LAN Controller Configuration GuideOL-21524-02Chapter 4 Configuring Controller SettingsConfiguring 802.11 BandsInformation similar to the following appears for the show license agent counters command:License Agent CountersRequest Messages Received:10: Messages with Errors:1Request Operations Received:9: Operations with Errors:0Notification Messages Sent:12: Transmission Errors:0: Soap Errors:0Information similar to the following appears for the show license agent sessions command:License Agent Sessions: 1 open, maximum is 9 Note To clear the license agent’s counter or session statistics, enter the clear license agent {counters | sessions} command.Configuring 802.11 BandsYou can configure the 802.11b/g/n (2.4-GHz) and 802.11a/n (5-GHz) bands for the controller to comply with the regulatory requirements in your country. By default, both 802.11b/g/n and 802.11a/n are enabled.Using the GUI to Configure 802.11 BandsTo configure 802.11 bands using the controller GUI, follow these steps:Step 1 Choose Wireless > 802.11a/n or 802.11b/g/n > Network to open the 802.11a (or 802.11b/g) Global Parameters page (see Figure 4-13).
4-30Cisco Wireless LAN Controller Configuration GuideOL-21524-02Chapter 4 Configuring Controller SettingsConfiguring 802.11 BandsFigure 4-13 802.11a Global Parameters PageStep 2 Select the 802.11a (or 802.11b/g) Network Status check box to enable the 802.11a or 802.11b/g band. To disable the band, unselect the check box. The default value is enabled. You can enable both the 802.11a and 802.11b/g bands.Step 3 If you enabled the 802.11b/g band in Step 2, select the 802.11g Support check box if you want to enable 802.11g network support. The default value is enabled. If you disable this feature, the 802.11b band is enabled without 802.11g support.Step 4 Specify the rate at which the SSID is broadcast by the access point by entering a value between 100 and 600 milliseconds (inclusive) in the Beacon Period text box. The default value is 100 milliseconds.Note The beacon period in controllers is listed in terms of milliseconds. The beacon period can also be measured in time units, where one time unit equals 1024 microseconds or 102.4 milliseconds. If a beacon interval is listed as 100 milliseconds in a controller, it is only a rounded off value for 102.4 milliseconds. Due to hardware limitation in certain radios, even though the beacon interval is, say 100 time units, it is adjusted to 102 time units, which roughly equals 1044.48 milliseconds. When the beacon period is to be represented in terms of time units, the value is adjusted to the nearest multiple of 17.Step 5 Specify the size at which packets are fragmented by entering a value between 256 and 2346 bytes (inclusive) in the Fragmentation Threshold text box. Enter a low number for areas where communication is poor or where there is a great deal of radio interference. Step 6 Make access points advertise their channel and transmit power level in beacons and probe responses. Select the DTPC Support check box. Otherwise, unselect this check box. The default value is enabled.Client devices using dynamic transmit power control (DTPC) receive the channel and power level information from the access points and adjust their settings automatically. For example, a client device used primarily in Japan could rely on DTPC to adjust its channel and power settings automatically when it travels to Italy and joins a network there.
4-31Cisco Wireless LAN Controller Configuration GuideOL-21524-02Chapter 4 Configuring Controller SettingsConfiguring 802.11 BandsNote On access points that run Cisco IOS software, this feature is called world mode.Note DTPC and 801.11h power constraint cannot be enabled simultaneously.Step 7 Use the Data Rates options to specify the rates at which data can be transmitted between the access point and the client. These data rates are available: • 802.11a—6, 9, 12, 18, 24, 36, 48, and 54 Mbps • 802.11b/g—1, 2, 5.5, 6, 9, 11, 12, 18, 24, 36, 48, or 54 MbpsFor each data rate, choose one of these options: • Mandatory—Clients must support this data rate in order to associate to an access point on the controller. • Supported—Any associated clients that support this data rate may communicate with the access point using that rate. However, the clients are not required to be able to use this rate in order to associate. • Disabled—The clients specify the data rates used for communication.Step 8 Click Apply to commit your changes.Step 9 Click Save Configuration to save your changes.Using the CLI to Configure 802.11 BandsTo configure 802.11 bands using the controller CLI, follow these steps:Step 1 Disable the 802.11a band by entering this command:config 802.11a disable networkNote The 802.11a band must be disabled before you can configure the 802.11a network parameters in this section.Step 2 Disable the 802.11b/g band by entering this command:config 802.11b disable networkNote The 802.11b band must be disabled before you can configure the 802.11b network parameters in this section.Step 3 Specify the rate at which the SSID is broadcast by the access point by entering this command:config {802.11a | 802.11b} beaconperiod time_unitwhere time_unit is the beacon interval in time units (TUs). One TU is 1024 microseconds. You can configure the access point to send a beacon every 20 to 1000 milliseconds.Step 4 Specify the size at which packets are fragmented by entering this command:
4-32Cisco Wireless LAN Controller Configuration GuideOL-21524-02Chapter 4 Configuring Controller SettingsConfiguring 802.11 Bandsconfig {802.11a | 802.11b} fragmentation thresholdwhere threshold is a value between 256 and 2346 bytes (inclusive). Specify a low number for areas where communication is poor or where there is a great deal of radio interference.Step 5 Make access points advertise their channel and transmit power level in beacons and probe responses by entering this command:config {802.11a | 802.11b} dtpc {enable | disable}The default value is enabled. Client devices using dynamic transmit power control (DTPC) receive the channel and power level information from the access points and adjust their settings automatically. For example, a client device used primarily in Japan could rely on DTPC to adjust its channel and power settings automatically when it travels to Italy and joins a network there.Note On access points that run Cisco IOS software, this feature is called world mode.Step 6 Specify the rates at which data can be transmitted between the controller and the client by entering this command:config {802.11a | 802.11b} rate {disabled | mandatory | supported} rate where • disabled—Clients specify the data rates used for communication. • mandatory—Clients support this data rate in order to associate to an access point on the controller. • supported—Any associated clients that support this data rate may communicate with the access point using that rate. However, the clients are not required to be able to use this rate in order to associate. • rate—The rate at which data is transmitted: –6, 9, 12, 18, 24, 36, 48, and 54 Mbps (802.11a) –1, 2, 5.5, 6, 9, 11, 12, 18, 24, 36, 48, or 54 Mbps (802.11b/g)Step 7 Enable the 802.11a band by entering this command:config 802.11a enable networkThe default value is enabled. Step 8 Enable the 802.11b band by entering this command:config 802.11b enable networkThe default value is enabled.Step 9 Enable or disable 802.11g network support by entering this command:config 802.11b 11gSupport {enable | disable}The default value is enabled. You can use this command only if the 802.11b band is enabled. If you disable this feature, the 802.11b band is enabled without 802.11g support.Step 10 Save your changes by entering this command:save configStep 11 View the configuration settings for the 802.11a or 802.11b/g band by entering this command:show {802.11a | 802.11b}Information similar to the following appears:802.11a Network............................... Enabled
4-33Cisco Wireless LAN Controller Configuration GuideOL-21524-02Chapter 4 Configuring Controller SettingsConfiguring 802.11n Parameters11nSupport.................................... Enabled 802.11a Low Band........................... Enabled 802.11a Mid Band........................... Enabled 802.11a High Band.......................... Enabled 802.11a Operational Rates 802.11a 6M Rate.............................. Mandatory 802.11a 9M Rate.............................. Supported 802.11a 12M Rate............................. Mandatory 802.11a 18M Rate............................. Supported 802.11a 24M Rate............................. Mandatory 802.11a 36M Rate............................. Supported 802.11a 48M Rate............................. Supported 802.11a 54M Rate............................. Supported ...Beacon Interval.................................. 100... Default Channel............................... 36Default Tx Power Level........................ 1DTPC Status................................... EnabledFragmentation Threshold....................... 2346...Configuring 802.11n ParametersThis section provides instructions for managing 802.11n devices such as the Cisco Aironet 1140 and 1250 Series Access Points on your network. The 802.11n devices support the 2.4- and 5-GHz bands and offer high-throughput data rates.Note The 802.11n high-throughput rates are available on 1140, 1250, 1260, and 3500 series access points for WLANs using WMM with no Layer 2 encryption or with WPA2/AES encryption enabled.Note For information on configuring radio resource management (RRM) parameters or statically assigning radio parameters for 802.11n access points, see Chapter 13, “Configuring Radio Resource Management.”Using the GUI to Configure 802.11n ParametersTo configure 802.11n parameters using the controller GUI, follow these steps:Step 1 Choose Wireless > 802.11a/n or 802.11b/g/n > High Throughput (802.11n) to open the 802.11n (5 GHz or 2.4 GHz) High Throughput page (see Figure 4-14).
4-34Cisco Wireless LAN Controller Configuration GuideOL-21524-02Chapter 4 Configuring Controller SettingsConfiguring 802.11n ParametersFigure 4-14 802.11n (2.4 GHz) High Throughput PageStep 2 Select the 11n Mode check box to enable 802.11n support on the network. The default value is enabled.Step 3 Select the check boxes of the desired rates to specify the modulation and coding scheme (MCS) rates at which data can be transmitted between the access point and the client. These data rates, which are calculated for a 20-MHz channel width using a short guard interval, are available: • 0 (7 Mbps) • 1 (14 Mbps) • 2 (21 Mbps) • 3 (29 Mbps) • 4 (43 Mbps) • 5 (58 Mbps) • 6 (65 Mbps) • 7 (72 Mbps) • 8 (14 Mbps) • 9 (29 Mbps) • 10 (43 Mbps) • 11 (58 Mbps) • 12 (87 Mbps) • 13 (116 Mbps) • 14 (130 Mbps)
4-35Cisco Wireless LAN Controller Configuration GuideOL-21524-02Chapter 4 Configuring Controller SettingsConfiguring 802.11n Parameters • 15 (144 Mbps)Any associated clients that support the selected rates may communicate with the access point using those rates. However, the clients are not required to be able to use this rate in order to associate. The MCS settings determine the number of spatial streams, the modulation, the coding rate, and the data rate values that are used.Step 4 Click Apply to commit your changes.Step 5 Use the 802.11n data rates that you configured by enabling WMM on the WLAN as follows:a. Choose WLANs to open the WLANs page.b. Click the ID number of the WLAN for which you want to configure WMM mode.c. When the WLANs > Edit page appears, choose the QoS tab to open the WLANs > Edit (Qos) page.d. From the WMM Policy drop-down list, choose Required or Allowed to require or allow client devices to use WMM. Devices that do not support WMM cannot join the WLAN.e. Click Apply to commit your changes.Step 6 Click Save Configuration to save your changes.Note To determine if an access point supports 802.11n, look at the 11n Supported text box on either the 802.11a/n (or 802.11b/g/n) Cisco APs > Configure page or the 802.11a/n (or 802.11b/g/n) AP Interfaces > Details page.Using the CLI to Configure 802.11n ParametersTo configure 802.11n parameters using the controller CLI, follow these steps:Step 1 Enable 802.11n support on the network by entering this command:config {802.11a | 802.11b} 11nsupport {enable | disable}Step 2 Specify the modulation and coding scheme (MCS) rates at which data can be transmitted between the access point and the client by entering this command:config {802.11a | 802.11b} 11nsupport mcs tx {0-15} {enable | disable}See the descriptions of the 0 through 15 MCS data rates in the “Using the GUI to Configure 802.11n Parameters” section on page 4-33.Step 3 Use the 802.11n data rates that you configured by enabling WMM on the WLAN as follows:config wlan wmm required wlan_idThe required parameter requires client devices to use WMM. Devices that do not support WMM cannot join the WLAN.Step 4 Specify the aggregation method used for 802.11n packets as follows:a. Disable the network by entering this command:config {802.11a | 802.11b} disable networkb. Specify the aggregation method entering this command:config {802.11a | 802.11b} 11nsupport a-mpdu tx priority {0-7 | all} {enable | disable}
4-36Cisco Wireless LAN Controller Configuration GuideOL-21524-02Chapter 4 Configuring Controller SettingsConfiguring 802.11n ParametersAggregation is the process of grouping packet data frames together rather than transmitting them separately. Two aggregation methods are available: Aggregated MAC Protocol Data Unit (A-MPDU) and Aggregated MAC Service Data Unit (A-MSDU). Both A-MPDU and A-MSDU are performed in the software.You can specify the aggregation method for various types of traffic from the access point to the clients. Table 4-2 defines the priority levels (0-7) assigned per traffic type.You can configure each priority level independently, or you can use the all parameter to configure all of the priority levels at once. When you use the enable command, the traffic associated with that priority level uses A-MPDU transmission. When you use the disable command, the traffic associated with that priority level uses A-MSDU transmission. Configure the priority levels to match the aggregation method used by the clients. By default, A-MPDU is enabled for priority level 0, 4 and 5 and the rest are disabled. By default, A-MPDU is enabled for all priorities except 6 and 7.c. Reenable the network by entering this command:config {802.11a | 802.11b} enable networkStep 5 Save your changes by entering this command:save configStep 6 View the configuration settings for the 802.11a/n or 802.11b/g/n band by entering this command:show {802.11a | 802.11b}Information similar to the following appears: 802.11a Network............................... Enabled 11nSupport.................................... Enabled 802.11a Low Band........................... Enabled 802.11a Mid Band........................... Enabled 802.11a High Band.......................... Enabled 802.11a Operational Rates 802.11a 6M Rate.............................. Mandatory 802.11a 9M Rate.............................. Supported 802.11a 12M Rate............................. Mandatory 802.11a 18M Rate............................. Supported 802.11a 24M Rate............................. Mandatory 802.11a 36M Rate............................. Supported 802.11a 48M Rate............................. Supported 802.11a 54M Rate............................. Supported 802.11n MCS Settings: MCS 0........................................ Supported MCS 1...................................... Supported Ta b l e 4-2 Traffic Type Priority LevelsUser Priority Traffic Type0Best effort1Background2Spare3Excellent effort4Controlled load5Video, less than 100-ms latency and jitter6Voice, less than 10-ms latency and jitter7Network control
4-37Cisco Wireless LAN Controller Configuration GuideOL-21524-02Chapter 4 Configuring Controller SettingsConfiguring 802.11n Parameters MCS 2...................................... Supported MCS 3...................................... Supported MCS 4...................................... Supported MCS 5...................................... Supported MCS 6...................................... Supported MCS 7...................................... Supported MCS 8...................................... Supported MCS 9...................................... Supported MCS 10..................................... Supported MCS 11..................................... Supported MCS 12..................................... Supported MCS 13..................................... Supported MCS 14..................................... Supported MCS 15........................................ Supported802.11n Status: A-MPDU Tx .................................. Enabled Priority 0............................... Enabled Priority 1............................... Enabled Priority 2............................... Enabled Priority 3............................... Enabled Priority 4............................... Enabled Priority 5............................... Disabled Priority 6............................... Disabled Priority 7............................... Enabled A-MSDU Tx .................................. Enabled Rifs Tx ..................................... Enabled Guard Interval ............................. Short Beacon Interval................................ 100 CF Pollable mandatory.......................... Disabled CF Poll Request mandatory...................... Disabled CFP Period......................................... 4 CFP Maximum Duration............................. 60 Default Channel.................................. 36 Default Tx Power Level........................... 1 DTPC Status...................................Enabled Fragmentation Threshold....................... 2346 Long Retry Limit.................................. 4 Maximum Rx Life Time........................... 512 Max Tx MSDU Life Time............................ 512 Medium Occupancy Limit........................... 100RTS Threshold.................................... 2347Short Retry Limit................................ 7TI Threshold..................................... -50Traffic Stream Metrics Status.................... EnabledExpedited BW Request Status...................... DisabledEDCA profile type................................ default-wmmVoice MAC optimization status.................... DisabledCall Admission Control (CAC) configurationVoice AC - Admission control (ACM)............ Enabled Voice max RF bandwidth........................ 75 Voice reserved roaming bandwidth.............. 6 Voice load-based CAC mode..................... Disabled Voice tspec inactivity timeout................ Disabled Video AC - Admission control (ACM)............ Enabled Voice Stream-Size............................. 84000 Voice Max-Streams............................. 2 Video max RF bandwidth........................ Infinite Video reserved roaming bandwidth........... 0
4-38Cisco Wireless LAN Controller Configuration GuideOL-21524-02Chapter 4 Configuring Controller SettingsConfiguring 802.11h ParametersConfiguring 802.11h Parameters802.11h informs client devices about channel changes and can limit the transmit power of those client devices. You can configure the 802.11h parameters using the controller GUI or CLI.Using the GUI to Configure 802.11h ParametersTo configure 802.11h parameters using the controller GUI, follow these steps:Step 1 Disable the 802.11a band as follows:a. Choose Wireless > 802.11a/n > Network to open the 802.11a Global Parameters page.b. Unselect the 802.11a Network Status check box.c. Click Apply to commit your change.Step 2 Choose Wireless > 802.11a/n > DFS (802.11h) to open the 802.11h Global Parameters page (see Figure 4-15).Figure 4-15 802.11h Global Parameters PageStep 3 Select the Channel Announcement check box if you want the access point to announce when it is switching to a new channel and the new channel number, or unselect this check box to disable the channel announcement. The default value is disabled.Step 4 If you enabled the channel announcement in Step 3, the Channel Quiet Mode check box appears. Select this check box if you want the access point to stop transmitting on the current channel, or unselect this check box to disable quiet mode. The default value is disabled.Step 5 Click Apply to commit your changes.Step 6 Reenable the 802.11a band as follows:a. Choose Wireless > 802.11a/n > Network to open the 802.11a Global Parameters page.b. Select the 802.11a Network Status check box.c. Click Apply to commit your change.
4-39Cisco Wireless LAN Controller Configuration GuideOL-21524-02Chapter 4 Configuring Controller SettingsConfiguring DHCP ProxyStep 7 Click Save Configuration to save your changes.Using the CLI to Configure 802.11h ParametersTo configure 802.11h parameters using the controller CLI, follow these steps:Step 1 Disable the 802.11a network by entering this command:config 802.11a disable networkStep 2 Enable or disable the access point to announce when it is switching to a new channel and the new channel number by entering this command:config 802.11h channelswitch {enable | disable} switch_modeYou can enter a 0 or 1 for the switch_mode parameter to specify whether transmissions are restricted until the actual channel switch (0) or are not restricted (1). The default value is disabled.Step 3 Configure a new channel using the 802.11h channel announcement by entering this command:config 802.11h setchannel channel channelStep 4 Configure the 802.11h power constraint value by entering this command:config 802.11h powerconstraint valueThe default value for the value parameter is 3 dB.Step 5 Reenable the 802.11a network by entering this command:config 802.11a enable networkStep 6 See the status of 802.11h parameters by entering this command:show 802.11hInformation similar to the following appears:Power Constraint................................. 0Channel Switch................................... DisabledChannel Switch Mode.............................. 0 Configuring DHCP ProxyWhen DHCP proxy is enabled on the controller, the controller unicasts DHCP requests from the client to the configured servers. Consequently, at least one DHCP server must be configured on either the interface associated with the WLAN or the WLAN itself.When DHCP proxy is disabled on the controller, those DHCP packets transmitted to and from the clients are bridged by the controller without any modification to the IP portion of the packet. Packets received from the client are removed from the CAPWAP tunnel and transmitted on the upstream VLAN. DHCP packets directed to the client are received on the upstream VLAN, converted to 802.11, and transmitted through a CAPWAP tunnel toward the client. As a result, the internal DHCP server cannot be used when DHCP proxy is disabled. The ability to disable DHCP proxy allows organizations to use DHCP servers that do not support Cisco’s native proxy mode of operation. It should be disabled only when required by the existing infrastructure.
4-40Cisco Wireless LAN Controller Configuration GuideOL-21524-02Chapter 4 Configuring Controller SettingsConfiguring DHCP ProxyYou can use the controller GUI or CLI to enable or disable DHCP proxy on a global basis, rather than on a WLAN basis. DHCP proxy is enabled by default.Note DHCP proxy must be enabled in order for DHCP option 82 to operate correctly. See the “Configuring DHCP” section on page 7-10 for information on DHCP option 82.Note All controllers that will communicate must have the same DHCP proxy setting.Note See Chapter 7, “Configuring WLANs,” for information on configuring DHCP servers.Using the GUI to Configure DHCP ProxyTo configure DHCP proxy using the controller GUI, follow these steps:Step 1 Choose Controller > Advanced > DHCP to open the DHCP Parameters page (see Figure 4-16).Figure 4-16 DHCP Parameters PageStep 2 Select the Enable DHCP Proxy check box to enable DHCP proxy on a global basis. Otherwise, unselect the check box. The default value is selected.Step 3 Click Apply to commit your changes.Step 4 Click Save Configuration to save your changes.Using the CLI to Configure DHCP ProxyTo configure DHCP proxy using the controller CLI, follow these steps:Step 1 Enable or disable DHCP proxy by entering this command:config dhcp proxy {enable | disable}Step 2 View the DHCP proxy configuration by entering this command:show dhcp proxyInformation similar to the following appears:
4-41Cisco Wireless LAN Controller Configuration GuideOL-21524-02Chapter 4 Configuring Controller SettingsConfiguring Administrator Usernames and PasswordsDHCP Proxy Behavior: enabledUsing the GUI to Configure a DHCP TimeoutTo configure a DHCP timeout using the controller GUI, follow these steps:Step 1 Choose Controller > Advanced > DHCP to open the DHCP Parameters page.Step 2 Select the DHCP Timeout (5 - 120 seconds) check box to enable a DHCP timeout on a global basis. Otherwise, unselect the check box. The valid range is 5 through 120 seconds.Step 3 Click Apply to commit your changes.Step 4 Click Save Configuration to save your changes.Using the CLI to Configure DHCP TimeoutTo configure a DHCP timeout using the controller CLI, use the following command:config dhcp timeout secondsConfiguring Administrator Usernames and PasswordsYou can configure administrator usernames and passwords to prevent unauthorized users from reconfiguring the controller and viewing configuration information. This section provides instructions for initial configuration and for password recovery.Configuring Usernames and PasswordsTo configure administrator usernames and passwords using the controller CLI, follow these steps:Step 1 Configure a username and password by entering one of these commands: • config mgmtuser add username password read-write—Creates a username-password pair with read-write privileges. • config mgmtuser add username password read-only—Creates a username-password pair with read-only privileges.Usernames and passwords are case-sensitive and can contain up to 24 ASCII characters. Usernames and passwords cannot contain spaces.Note If you ever need to change the password for an existing username, enter the config mgmtuser password username new_password command.Step 2 List the configured users by entering this command:
4-42Cisco Wireless LAN Controller Configuration GuideOL-21524-02Chapter 4 Configuring Controller SettingsConfiguring SNMPshow mgmtuserRestoring PasswordsTo configure a new username and password at boot-up using the controller CLI, follow these steps:Step 1 After the controller boots up, enter Restore-Password at the User prompt.Note For security reasons, the text that you enter does not appear on the controller console.Step 2 At the Enter User Name prompt, enter a new username.Step 3 At the Enter Password prompt, enter a new password.Step 4 At the Re-enter Password prompt, reenter the new password. The controller validates and stores your entries in the database.Step 5 When the User prompt reappears, enter your new username.Step 6 When the Password prompt appears, enter your new password. The controller logs you in with your new username and password.Configuring SNMPTo configure SNMP using the controller CLI, follow these steps:Step 1 Enter the config snmp community create name command to create an SNMP community name. Step 2 Enter the config snmp community delete name command to delete an SNMP community name.Step 3 Enter the config snmp community accessmode ro name command to configure an SNMP community name with read-only privileges. Enter config snmp community accessmode rw name to configure an SNMP community name with read-write privileges.Step 4 Enter the config snmp community ipaddr ip-address ip-mask name command to configure an IP address and subnet mask for an SNMP community.Note This command behaves like an SNMP access list. It specifies the IP address from which the device accepts SNMP packets with the associated community. The requesting entity’s IP address is ANDed with the subnet mask before being compared to the IP address. If the subnet mask is set to 0.0.0.0, an IP address of 0.0.0.0 matches to all IP addresses. The default value is 0.0.0.0.Note The controller can use only one IP address range to manage an SNMP community.Step 5 Enter the config snmp community mode enable command to enable a community name. Enter the config snmp community mode disable command to disable a community name.
4-43Cisco Wireless LAN Controller Configuration GuideOL-21524-02Chapter 4 Configuring Controller SettingsChanging the Default Values of SNMP Community StringsStep 6 Enter the config snmp trapreceiver create name ip-address command to configure a destination for a trap.Step 7 Enter the config snmp trapreceiver delete name command to delete a trap.Step 8 Enter the config snmp trapreceiver ipaddr old-ip-address name new-ip-address command to change the destination for a trap.Step 9 Enter the config snmp trapreceiver mode enable command to enable traps. Enter the config snmp trapreceiver mode disable command to disable traps.Step 10 Enter config snmp syscontact syscontact-name to configure the name of the SNMP contact. Enter up to 31 alphanumeric characters for the contact name.Step 11 Enter the config snmp syslocation syslocation-name command to configure the SNMP system location. Enter up to 31 alphanumeric characters for the location.Step 12 Use the show snmpcommunity and the show snmptrap commands to verify that the SNMP traps and communities are correctly configured.Step 13 Use the show trapflags command to see the enabled and disabled trapflags. If necessary, use the config trapflags command to enable or disable trapflags.Step 14 Starting in release 7.0.116.0, you can also configure the SNMP engine ID. Use the config snmp engineID engine-id-string command to configure the SNMP engine ID. Note The engine ID string can be a maximum of 24 characters.Step 15 Use the show engineID command to view the engine ID.Changing the Default Values of SNMP Community StringsThe controller has commonly known default values of “public” and “private” for the read-only and read-write SNMP community strings. Using these standard values presents a security risk. If you use the default community names, and since these are known, the community names could be used to communicate to the controller using the SNMP protocol. Therefore, we strongly advise that you change these values.Using the GUI to Change the SNMP Community String Default ValuesTo change the SNMP community string default values using the controller GUI, follow these steps:Step 1 Choose Management and then Communities under SNMP. The SNMP v1 / v2c Community page appears (see Figure 4-17).
4-44Cisco Wireless LAN Controller Configuration GuideOL-21524-02Chapter 4 Configuring Controller SettingsChanging the Default Values of SNMP Community StringsFigure 4-17 SNMP v1 / v2c Community PageStep 2 If “public” or “private” appears in the Community Name column, hover your cursor over the blue drop-down arrow for the desired community and choose Remove to delete this community.Step 3 Click New to create a new community. The SNMP v1 / v2c Community > New page appears (see Figure 4-18).Figure 4-18 SNMP v1 / v2c Community > New PageStep 4 In the Community Name text box, enter a unique name containing up to 16 alphanumeric characters. Do not enter “public” or “private.”Step 5 In the next two text boxes, enter the IP address from which this device accepts SNMP packets with the associated community and the IP mask.Step 6 Choose Read Only or Read/Write from the Access Mode drop-down list to specify the access level for this community.Step 7 Choose Enable or Disable from the Status drop-down list to specify the status of this community.Step 8 Click Apply to commit your changes.Step 9 Click Save Configuration to save your settings.Step 10 Repeat this procedure if a “public” or “private” community still appears on the SNMP v1 / v2c Community page.Using the CLI to Change the SNMP Community String Default ValuesTo change the SNMP community string default values using the controller CLI, follow these steps:
4-45Cisco Wireless LAN Controller Configuration GuideOL-21524-02Chapter 4 Configuring Controller SettingsChanging the Default Values for SNMP v3 UsersStep 1 See the current list of SNMP communities for this controller by entering this command:show snmp communityStep 2 If “public” or “private” appears in the SNMP Community Name column, enter this command to delete this community:config snmp community delete nameThe name parameter is the community name (in this case, “public” or “private”).Step 3 Create a new community by entering this command:config snmp community create nameEnter up to 16 alphanumeric characters for the name parameter. Do not enter “public” or “private.”Step 4 Enter the IP address from which this device accepts SNMP packets with the associated community by entering this command:config snmp community ipaddr ip_address ip_mask nameStep 5 Specify the access level for this community by entering this command, where ro is read-only mode and rw is read/write mode:config snmp community accessmode {ro | rw} nameStep 6 Enable or disable this SNMP community by entering this command:config snmp community mode {enable | disable} nameStep 7 Save your changes by entering save config.Step 8 Repeat this procedure if you still need to change the default values for a “public” or “private” community string.Changing the Default Values for SNMP v3 UsersThe controller uses a default value of “default” for the username, authentication password, and privacy password for SNMP v3 users. Using these standard values presents a security risk. Therefore, Cisco strongly advises that you change these values.Note SNMP v3 is time sensitive. Make sure that you have configured the correct time and time zone on your controller.Using the GUI to Change the SNMP v3 User Default ValuesTo change the SNMP v3 user default values using the controller GUI, follow these steps:Step 1 Choose Management > SNMP > SNMP V3 Users to open the SNMP V3 Users page (see Figure 4-19).
4-46Cisco Wireless LAN Controller Configuration GuideOL-21524-02Chapter 4 Configuring Controller SettingsChanging the Default Values for SNMP v3 UsersFigure 4-19 SNMP V3 Users PageStep 2 If “default” appears in the User Name column, hover your cursor over the blue drop-down arrow for the desired user and choose Remove to delete this SNMP v3 user.Step 3 Click New to add a new SNMP v3 user. The SNMP V3 Users > New page appears (see Figure 4-20).Figure 4-20 SNMP V3 Users > New PageStep 4 In the User Profile Name text box, enter a unique name. Do not enter “default.”Step 5 Choose Read Only or Read Write from the Access Mode drop-down list to specify the access level for this user. The default value is Read Only.Step 6 From the Authentication Protocol drop-down list, choose the desired authentication method: None, HMAC-MD5 (Hashed Message Authentication Coding-Message Digest 5), or HMAC-SHA (Hashed Message Authentication Coding-Secure Hashing Algorithm). The default value is HMAC-SHA.Step 7 In the Auth Password and Confirm Auth Password text boxes, enter the shared secret key to be used for authentication. You must enter at least 12 characters.Step 8 From the Privacy Protocol drop-down list, choose the desired encryption method: None, CBC-DES (Cipher Block Chaining-Digital Encryption Standard), or CFB-AES-128 (Cipher Feedback Mode-Advanced Encryption Standard-128). The default value is CFB-AES-128.Note In order to configure CBC-DES or CFB-AES-128 encryption, you must have selected either HMAC-MD5 or HMAC-SHA as the authentication protocol in Step 6.Step 9 In the Priv Password and Confirm Priv Password text boxes, enter the shared secret key to be used for encryption. You must enter at least 12 characters.Step 10 Click Apply to commit your changes.
4-47Cisco Wireless LAN Controller Configuration GuideOL-21524-02Chapter 4 Configuring Controller SettingsConfiguring Aggressive Load BalancingStep 11 Click Save Configuration to save your settings.Step 12 Reboot the controller so that the SNMP v3 user that you added takes effect.Using the CLI to Change the SNMP v3 User Default ValuesTo change the SNMP v3 user default values using the controller CLI, follow these steps:Step 1 See the current list of SNMP v3 users for this controller by entering this command:show snmpv3userStep 2 If “default” appears in the SNMP v3 User Name column, enter this command to delete this user:config snmp v3user delete usernameThe username parameter is the SNMP v3 username (in this case, “default”).Step 3 Create a new SNMP v3 user by entering this command:config snmp v3user create username {ro | rw} {none | hmacmd5 | hmacsha} {none | des | aescfb128} auth_key encrypt_keywhere • username is the SNMP v3 username. • ro is read-only mode and rw is read-write mode. • none, hmacmd5, and hmacsha are the authentication protocol options. • none, des, and aescfb128 are the privacy protocol options. • auth_key is the authentication shared secret key. • encrypt_key is the encryption shared secret key.Do not enter “default” for the username, auth_key, and encrypt_key parameters.Step 4 Save your changes by entering the save config command.Step 5 Reboot the controller so that the SNMP v3 user that you added takes effect by entering reset system command.Configuring Aggressive Load BalancingEnabling aggressive load balancing on the controller allows lightweight access points to load balance wireless clients across access points. You can enable aggressive load balancing using the controller GUI or CLI.Note Clients are load balanced between access points on the same controller. Load balancing does not occur between access points on different controllers.
4-48Cisco Wireless LAN Controller Configuration GuideOL-21524-02Chapter 4 Configuring Controller SettingsConfiguring Aggressive Load BalancingWhen a wireless client attempts to associate to a lightweight access point, association response packets are sent to the client with an 802.11 response packet including status code 17. This code indicates whether the access point can accept any more associations. If the access point is too busy, the client attempts to associate to a different access point in the area. The system determines if an access point is relatively more busy than its neighbor access points that are also accessible to the client.For example, if the number of clients on AP1 is more than the number of clients on AP2 plus the load-balancing window, then AP1 is considered to be busier than AP2. When a client attempts to associate to AP1, it receives an 802.11 response packet with status code 17, indicating that the access point is busy, and the client attempts to associate to a different access point.You can configure the controller to deny client associations up to 10 times (if a client attempted to associate 11 times, it would be allowed to associate on the 11th try). You can also enable or disable load balancing on a particular WLAN, which is useful if you want to disable load balancing for a select group of clients (such as time-sensitive voice clients).Note OEAP 600 Series access points do not support client load balancing.Client Association LimitsThe maximum number of client associations that the access points can support is dependent upon the following factors: • The maximum number of client associations differs for lightweight and autonomous Cisco IOS access points. • There may be a limit per radio and an overall limit per AP. • AP hardware (the 16-MB APs have a lower limit than the 32-MB and higher APs).Client Association Limits for Lightweight Access PointsThe Per-AP limits are as follows: • For 16-MB APs, the limit is 128 clients per AP. This limit is applicable to 1100 and 1200 series APs. • For 32-MB and higher APs, there is no per-AP limit.The per-radio limits are as follows: • For all Cisco IOS APs, the limit is 200 associations per radio. • For all 1000 and 1500 series APs, which are not supported beyond release 4.2, the limit is 250 associations per radio.With 32-MB and higher lightweight Cisco IOS APs, with two radios, up to 200 + 200 = 400 associations are supported.Client Association Limits for Autonomous Cisco IOS Access PointsThe client association limits for autonomous Cisco IOS access points are as follows:The limit is around 80 to 127 clients per AP. This number varies depending on the following factors: • AP model (whether it is 16 MB or 32 MB or higher). • Cisco IOS version.
4-49Cisco Wireless LAN Controller Configuration GuideOL-21524-02Chapter 4 Configuring Controller SettingsConfiguring Aggressive Load Balancing • Hardware configuration (two radios use more memory than one). • Enabled features (WDS functionality in particular).The per-radio limits are as follows:The per-radio limit is about 200 associations. One association will likely hit the per-AP limit first.Unlike Cisco Unified Wireless Network, autonomous Cisco IOS supports per-SSID/per-AP association limits. This limit is configured using the max-associations CLI, under dot11 SSID. The maximum number is 255 associations (which is also the default number).Using the GUI to Configure Aggressive Load BalancingTo configure aggressive load balancing using the controller GUI, follow these steps:Step 1 Choose Wireless > Advanced > Load Balancing to open the Load Balancing page (see Figure 4-21).Figure 4-21 Wireless > Advanced > Load Balancing PageStep 2 In the Client Window Size text box, enter a value between 1 and 20. The window size becomes part of the algorithm that determines whether an access point is too heavily loaded to accept more client associations:load-balancing window + client associations on AP with highest load = load-balancing threshold In the group of access points accessible to a client device, each access point has a different number of client associations. The access point with the lowest number of clients has the lightest load. The client window size plus the number of clients on the access point with the lightest load forms the threshold. Access points with more client associations than this threshold is considered busy, and clients can associate only to access points with client counts lower than the threshold.Step 3 In the Maximum Denial Count text box, enter a value between 0 and 10. The denial count sets the maximum number of association denials during load balancing.
4-50Cisco Wireless LAN Controller Configuration GuideOL-21524-02Chapter 4 Configuring Controller SettingsConfiguring Aggressive Load BalancingStep 4 Click Apply to commit your changes.Step 5 Click Save Configuration to save your changes.Step 6 To enable or disable aggressive load balancing on specific WLANs, choose WLANs > WLAN ID. The WLANs > Edit page appears. Step 7 Click the Advanced tab (see Figure 4-22).Figure 4-22 WLANs > Advanced PageStep 8 Click Apply to commit your changes.Step 9 Click Save Configuration to save your settingsUsing the CLI to Configure Aggressive Load BalancingTo configure aggressive load balancing using the controller CLI, follow these steps:Step 1 Set the client window for aggressive load balancing by entering this command:config load-balancing window client_countYou can enter a value between 0 and 20 for the client_count parameter.Step 2 Set the denial count for load balancing by entering this command:config load-balancing denial denial_countYou can enter a value between 1 and 10 for the denial_count parameter.Step 3 Save your changes by entering this command:save configStep 4 Enable or disable aggressive load balancing on specific WLANs by entering this command:config wlan load-balance allow {enable | disable} wlan_IDYou can enter a value between 1 and 512 for wlan_ID parameter.Step 5 Verify your settings by entering this command:
4-51Cisco Wireless LAN Controller Configuration GuideOL-21524-02Chapter 4 Configuring Controller SettingsConfiguring Band Selectionshow load-balancingInformation similar to the following appears:Aggressive Load Balancing........................ EnabledAggressive Load Balancing Window................. 1 clientsAggressive Load Balancing Denial Count........... 3 StatisticsTotal Denied Count............................... 5 clientsTotal Denial Sent................................ 10 messagesExceeded Denial Max Limit Count.................. 0 timesNone 5G Candidate Count.......................... 0 timesNone 2.4G Candidate Count........................ 0 timesStep 6 Save your changes by entering this command:save configConfiguring Band SelectionBand selection enables client radios that are capable of dual-band (2.4- and 5-GHz) operation to move to a less congested 5-GHz access point. The 2.4-GHz band is often congested. Clients on this band typically experience interference from Bluetooth devices, microwave ovens, and cordless phones as well as co-channel interference from other access points because of the 802.11b/g limit of three nonoverlapping channels. To combat these sources of interference and improve overall network performance, you can configure band selection on the controller.Band selection works by regulating probe responses to clients. It makes 5-GHz channels more attractive to clients by delaying probe responses to clients on 2.4-GHz channels.Band selection is enabled globally by default.Note Band-selection enabled WLANs do not support time-sensitive applications like voice and video because of roaming delays.Guidelines for Using the Band SelectionFollow these guidelines when using band selection: • Band selection can be used only with Cisco Aironet 1140 and 1250 Series and the 3500 series access points. • Band selection operates only on access points that are connected to a controller. A hybrid-REAP access point without a controller connection does not perform band selection after a reboot. Note OEAP 600 Series access points do not support band select. • The band-selection algorithm directs dual-band clients only from the 2.4-GHz radio to the 5-GHz radio of the same access point, and it only runs on an access point when both the 2.4-GHz and 5-GHz radios are up and running.
4-52Cisco Wireless LAN Controller Configuration GuideOL-21524-02Chapter 4 Configuring Controller SettingsConfiguring Band Selection • You can enable both band selection and aggressive load balancing on the controller. They run independently and do not impact one another.Using the GUI to Configure Band SelectionTo configure band selection using the controller GUI, follow these steps:Step 1 Choose Wireless > Advanced > Band Select to open the Band Select page (see Figure 4-23).Figure 4-23 Wireless > Advanced > Band Select PageStep 2 In the Probe Cycle Count text box, enter a value between 1 and 10. The cycle count sets the number of suppression cycles for a new client. The default cycle count is 2.Step 3 In the Scan Cycle Period Threshold (milliseconds) text box, enter a value between 1 and 1000 milliseconds for the scan cycle period threshold. This setting determines the time threshold during which new probe requests from a client come from a new scanning cycle. The default cycle threshold is 200 milliseconds.Step 4 In the Age Out Suppression (seconds) text box, enter a value between 10 and 200 seconds. Age-out suppression sets the expiration time for pruning previously known 802.11b/g clients. The default value is 20 seconds. After this time elapses, clients become new and are subject to probe response suppression.Step 5 In the Age Out Dual Band (seconds) text box, enter a value between 10 and 300 seconds. The age-out period sets the expiration time for pruning previously known dual-band clients. The default value is 60 seconds. After this time elapses, clients become new and are subject to probe response suppression.Step 6 In the Acceptable Client RSSI (dBm) text box, enter a value between –20 and –90 dBm. This parameter sets the minimum RSSI for a client to respond to a probe. The default value is –80 dBm.Step 7 Click Apply to commit your changes.Step 8 Click Save Configuration to save your changes.
4-53Cisco Wireless LAN Controller Configuration GuideOL-21524-02Chapter 4 Configuring Controller SettingsConfiguring Band SelectionStep 9 To enable or disable aggressive load balancing on specific WLANs, choose WLANs > WLAN ID. The WLANs > Edit page appears. Step 10 Click the Advanced tab (see Figure 4-22).Step 11 Click Save Configuration to save your changes.Using the CLI to Configure Band SelectionTo configure band selection using the controller CLI, follow these steps:Step 1 Set the probe cycle count for band select by entering this command:config band-select cycle-count cycle_countYou can enter a value between 1 and 10 for the cycle_count parameter.Step 2 Set the time threshold for a new scanning cycle period by entering this command:config band-select cycle-threshold millisecondsYou can enter a value for threshold between 1 and 1000 for the milliseconds parameter.Step 3 Set the suppression expire to the band select by entering this command:config band-select expire suppression secondsYou can enter a value for suppression between 10 to 200 for the seconds parameter.Step 4 Set the dual band expire by entering this command:config band-select expire dual-band secondsYou can enter a value for dual band between 10 and 300 for the seconds parameter.Step 5 Set the client RSSI threshold by entering this command:config band-select client-rssi client_rssiYou can enter a value for minimum dBm of a client RSSI to respond to a probe between 20 and 90 for the client_rssi parameter.Step 6 Save your changes by entering this command:save configStep 7 Enable or disable band selection on specific WLANs by entering this command:config wlan band-select allow {enable | disable} wlan_IDYou can enter a value between 1 and 512 for wlan_ID parameter.Step 8 Verify your settings by entering this command:show band-selectInformation similar to the following appears:Band Select Probe Response....................... Enabled Cycle Count................................... 3 cycles Cycle Threshold............................... 300 milliseconds Age Out Suppression........................... 20 seconds Age Out Dual Band............................. 20 seconds Client RSSI................................... -30 dBm
4-54Cisco Wireless LAN Controller Configuration GuideOL-21524-02Chapter 4 Configuring Controller SettingsConfiguring Fast SSID ChangingStep 9 Save your changes by entering this command:save configConfiguring Fast SSID ChangingWhen fast SSID changing is enabled, the controller allows clients to move between SSIDs. When the client sends a new association for a different SSID, the client entry in the controller connection table is cleared before the client is added to the new SSID. When fast SSID changing is disabled, the controller enforces a delay before clients are allowed to move to a new SSID.Using the GUI to Configure Fast SSID ChangingTo configure fast SSID changing for mobile clients using the controller GUI, follow these steps:Step 1 Choose Controller to open the General page.Step 2 From the Fast SSID Change drop-down list, choose Enabled to enable this feature or Disabled to disable it. The default value is disabled.Step 3 Click Apply to commit your changes.Step 4 Click Save Configuration to save your changes.Using the CLI to Configure Fast SSID ChangingTo configure fast SSID changing for mobile clients using the controller CLI, follow these steps:Step 1 Enable or disable fast SSID changing by entering this command:config network fast-ssid-change {enable | disable}Step 2 Save your changes by entering this command:save configEnabling 802.3X Flow Control802.3X Flow Control is disabled by default. To enable it, enter the config switchconfig flowcontrol enable command.
4-55Cisco Wireless LAN Controller Configuration GuideOL-21524-02Chapter 4 Configuring Controller SettingsConfiguring 802.3 BridgingConfiguring 802.3 BridgingThe controller supports 802.3 frames and the applications that use them, such as those typically used for cash registers and cash register servers. However, to make these applications work with the controller, the 802.3 frames must be bridged on the controller.Support for raw 802.3 frames allows the controller to bridge non-IP frames for applications not running over IP. Only this raw 802.3 frame format is currently supported:+-------------------+---------------------+-----------------+------------------------+| Destination | Source | Total packet | Payload ..... | MAC address | MAC address | length |+-------------------+----------------------+-----------------+------------------------You can configure 802.3 bridging through the controller GUI in software release 4.1 or later releases and through the controller CLI in software release 4.0 or later releases.Note In controller software release 5.2 or later releases, the software-based forwarding architecture for 2100-series-based controllers is being replaced with a new forwarding plane architecture. As a result, Cisco 2100 Series Controller and the Cisco Wireless LAN Controller Network Module for Cisco Integrated Services Routers (as well as Cisco 5500 Series Controllers) bridge 802.3 packets by default. Therefore, 802.3 bridging can now be disabled only on 4400 series controllers, the Cisco WiSM, and the Catalyst 3750G Wireless LAN Controller Switch.Note By default, Cisco 2100 Series Controllers that run software release 5.2 or later releases and Cisco 5500 Series Controllers bridge all non-IPv4 packets (such as AppleTalk, IPv6, and so on). If desired, you can use ACLs to block the bridging of these protocols.Note You can also configure 802.3 bridging using the Cisco Wireless Control System (WCS). See the Cisco Wireless Control System Configuration Guide for instructions.Using the GUI to Configure 802.3 BridgingTo configure 802.3 bridging using the controller GUI, follow these steps:Step 1 Choose Controller > General to open the General page (see Figure 4-24).
4-56Cisco Wireless LAN Controller Configuration GuideOL-21524-02Chapter 4 Configuring Controller SettingsConfiguring 802.3 BridgingFigure 4-24 General PageStep 2 From the 802.3 Bridging drop-down list, choose Enabled to enable 802.3 bridging on your controller or Disabled to disable this feature. The default value is Disabled.Note In controller software release 5.2 or later releases, you can disable 802.3 bridging only for 4400 series controllers, the Cisco WiSM, and the Catalyst 3750G Wireless LAN Controller Switch. Step 3 Click Apply to commit your changes.Step 4 Click Save Configuration to save your changes.Using the CLI to Configure 802.3 BridgingTo configure 802.3 bridging using the controller CLI, follow these steps:Step 1 See the current status of 802.3 bridging for all WLANs by entering this command:show networkStep 2 Enable or disable 802.3 bridging globally on all WLANs by entering this command:config network 802.3-bridging {enable | disable}The default value is disabled.Note In controller software release 5.2 or later releases, you can disable 802.3 bridging only for 4400 series controllers, the Cisco WiSM, and the Catalyst 3750G Wireless LAN Controller Switch. Step 3 Save your settings by entering this command:save config
4-57Cisco Wireless LAN Controller Configuration GuideOL-21524-02Chapter 4 Configuring Controller SettingsConfiguring Multicast ModeConfiguring Multicast ModeIf your network supports packet multicasting, you can configure the multicast method that the controller uses. The controller performs multicasting in two modes: • Unicast mode—In this mode, the controller unicasts every multicast packet to every access point associated to the controller. This mode is inefficient but might be required on networks that do not support multicasting. • Multicast mode—In this mode, the controller sends multicast packets to a CAPWAP multicast group. This method reduces overhead on the controller processor and shifts the work of packet replication to your network, which is much more efficient than the unicast method.You can enable multicast mode using the controller GUI or CLI.Understanding Multicast ModeWhen you enable multicast mode and the controller receives a multicast packet from the wired LAN, the controller encapsulates the packet using CAPWAP and forwards the packet to the CAPWAP multicast group address. The controller always uses the management interface for sending multicast packets. Access points in the multicast group receive the packet and forward it to all the BSSIDs mapped to the interface on which clients receive multicast traffic. From the access point perspective, the multicast appears to be a broadcast to all SSIDs.In controller software release 4.2 or later releases, Internet Group Management Protocol (IGMP) snooping is introduced to better direct multicast packets. When this feature is enabled, the controller gathers IGMP reports from the clients, processes them, creates unique multicast group IDs (MGIDs) from the IGMP reports after selecting the Layer 3 multicast address and the VLAN number, and sends the IGMP reports to the infrastructure switch. The controller sends these reports with the source address as the interface address on which it received the reports from the clients. The controller then updates the access point MGID table on the access point with the client MAC address. When the controller receives multicast traffic for a particular multicast group, it forwards it to all the access points, but only those access points that have active clients listening or subscribed to that multicast group send multicast traffic on that particular WLAN. IP packets are forwarded with an MGID that is unique for an ingress VLAN and the destination multicast group. Layer 2 multicast packets are forwarded with an MGID that is unique for the ingress interface.When IGMP snooping is disabled, the following is true: • The controller always uses Layer 2 MGID when it sends multicast data to the access point. Every interface created is assigned one Layer 2 MGID. For example, the management interface has an MGID of 0, and the first dynamic interface created is assigned an MGID of 8, which increments as each dynamic interface is created. • The IGMP packets from clients are forwarded to the router. As a result, the router IGMP table is updated with the IP address of the clients as the last reporter.When IGMP snooping is enabled, the following is true: • The controller always uses Layer 3 MGID for all Layer 3 multicast traffic sent to the access point. For all Layer 2 multicast traffic, it continues to use Layer 2 MGID. • IGMP report packets from wireless clients are consumed or absorbed by the controller, which generates a query for the clients. After the router sends the IGMP query, the controller sends the IGMP reports with its interface IP address as the listener IP address for the multicast group. As a result, the router IGMP table is updated with the controller IP address as the multicast listener.
4-58Cisco Wireless LAN Controller Configuration GuideOL-21524-02Chapter 4 Configuring Controller SettingsConfiguring Multicast Mode • When the client that is listening to the multicast groups roams from one controller to another, the first controller transmits all the multicast group information for the listening client to the second controller. As a result, the second controller can immediately create the multicast group information for the client. The second controller sends the IGMP reports to the network for all multicast groups to which the client was listening. This process aids in the seamless transfer of multicast data to the client. • If the listening client roams to a controller in a different subnet, the multicast packets are tunneled to the anchor controller of the client to avoid the reverse path filtering (RPF) check. The anchor then forwards the multicast packets to the infrastructure switch.Note The MGIDs are controller specific. The same multicast group packets coming from the same VLAN in two different controllers may be mapped to two different MGIDs.Note If Layer 2 multicast is enabled, a single MGID is assigned to all the multicast addresses coming from an interface (see Figure 4-26).Guidelines for Using Multicast ModeFollow these guidelines when you enable multicast mode on your network: • The Cisco Unified Wireless Network solution uses some IP address ranges for specific purposes, and you should keep these ranges in mind when configuring a multicast group: –224.0.0.0 through 224.0.0.255—Reserved link local addresses –224.0.1.0 through 238.255.255.255—Globally scoped addresses –239.0.0.0 through 239.255.x.y /16—Limited scope addresses • When you enable multicast mode on the controller, you also must configure a CAPWAP multicast group address. Access points subscribe to the CAPWAP multicast group using IGMP. • Cisco 1100, 1130, 1200, 1230, and 1240 access points use IGMP versions 1, 2, and 3. • Access points in monitor mode, sniffer mode, or rogue detector mode do not join the CAPWAP multicast group address. • The CAPWAP multicast group configured on the controllers should be different for different controllers. • Multicast mode does not operate across intersubnet mobility events such as guest tunneling. It does, however, operate with interface overrides using RADIUS (but only when IGMP snooping is enabled) and with site-specific VLANs (access point group VLANs). • For LWAPP, the controller drops multicast packets sent to UDP control port 12223. For CAPWAP, the controller drops multicast packets sent to UDP control and data ports 5246 and 5247, respectively. Therefore, you may want to consider not using these port numbers with the multicast applications on your network. • We recommend that any multicast applications on your network not use the multicast address configured as the CAPWAP multicast group address on the controller. • Cisco 2100 Series Controllers do not support multicast-unicast mode. They do, however, support multicast-multicast mode, except when access points are connected directly to the local port of a 2100 series controller.
4-59Cisco Wireless LAN Controller Configuration GuideOL-21524-02Chapter 4 Configuring Controller SettingsConfiguring Multicast Mode • Cisco Flex 7500 Series Controllers do not support multicast-unicast mode.Using the GUI to Enable Multicast ModeTo enable multicast mode using the controller GUI, follow these steps:Step 1 Choose Controller > Multicast to open the Multicast page (see Figure 4-25).Figure 4-25 Multicast PageStep 2 Choose one of the following options from the Ethernet Multicast Mode drop-down list: • Disabled—Disables multicasting on the controller. This is the default value. • Unicast—Configures the controller to use the unicast method to send multicast packets. • Multicast—Configures the controller to use the multicast method to send multicast packets to a CAPWAP multicast group.Note Hybrid REAP supports unicast mode only.Step 3 If you chose Multicast in Step 2, enter the IP address of the multicast group in the Multicast Group Address text box.Step 4 If you want to enable IGMP snooping, select the Enable IGMP Snooping check box. If you want to disable IGMP snooping, leave the check box unselected. The default value is disabled.Step 5 To set the IGMP timeout, enter a value between 30 and 7200 seconds in the IGMP Timeout text box. The controller sends three queries in one timeout value at an interval of timeout/ 3 to see if any clients exist for a particular multicast group. If the controller does not receive a response through an IGMP report from the client, the controller times out the client entry from the MGID table. When no clients are left for a particular multicast group, the controller waits for the IGMP timeout value to expire and then deletes the MGID entry from the controller. The controller always generates a general IGMP query (that is, to destination address 224.0.0.1) and sends it on all WLANs with an MGID value of 1.Step 6 Enter the IGMP Query Interval (seconds).Step 7 Click Apply to commit your changes.Step 8 Click Save Configuration to save your changes.
4-60Cisco Wireless LAN Controller Configuration GuideOL-21524-02Chapter 4 Configuring Controller SettingsConfiguring Multicast ModeUsing the GUI to View Multicast GroupsTo view multicast groups using the controller GUI, follow these steps:Step 1 Choose Monitor > Multicast. The Multicast Groups page appears (see Figure 4-26).Figure 4-26 Multicast Groups PageThis page shows all the multicast groups and their corresponding MGIDs.Step 2 Click the link for a specific MGID (such as MGID 550) to see a list of all the clients joined to the multicast group in that particular MGID.Using the CLI to Enable Multicast ModeTo enable multicast mode using the controller CLI, follow these steps:Step 1 Enable or disable multicasting on the controller by entering this command:config network multicast global {enable | disable}The default value is disabled.Note The config network broadcast {enable | disable} command allows you to enable or disable broadcasting without enabling or disabling multicasting as well. This command uses the multicast mode currently on the controller to operate.Step 2 Perform one of the following:a. Configure the controller to use the unicast method to send multicast packets by entering this command:config network multicast mode unicastb. Configure the controller to use the multicast method to send multicast packets to a CAPWAP multicast group by entering this command:config network multicast mode multicast multicast_group_ip_address
4-61Cisco Wireless LAN Controller Configuration GuideOL-21524-02Chapter 4 Configuring Controller SettingsConfiguring Multicast ModeStep 3 Enable or disable IGMP snooping by entering this command:config network multicast igmp snooping {enable | disable}The default value is disabled.Step 4 Set the IGMP timeout value by entering this command:config network multicast igmp timeout timeoutYou can enter a timeout value between 30 and 7200 seconds. The controller sends three queries in one timeout value at an interval of timeout/3 to see if any clients exist for a particular multicast group. If the controller does not receive a response through an IGMP report from the client, the controller times out the client entry from the MGID table. When no clients are left for a particular multicast group, the controller waits for the IGMP timeout value to expire and then deletes the MGID entry from the controller. The controller always generates a general IGMP query (that is, to destination address 224.0.0.1) and sends it on all WLANs with an MGID value of 1.Step 5 Save your changes by entering this command:save configUsing the CLI to View Multicast GroupsTo view multicast groups using the controller CLI, use these commands: • See all the multicast groups and their corresponding MGIDs by entering this command:show network multicast mgid summaryInformation similar to the following appears:Layer2 MGID Mapping:-------------------InterfaceName vlanId MGID-------------------------------- ------ ----management 0 0test 0 9wired 20 8Layer3 MGID Mapping:-------------------Number of Layer3 MGIDs........................... 1 Group address Vlan MGID --------------- ---- ---- 239.255.255.250 0 550 • See all the clients joined to the multicast group in a specific MGID by entering this command:show network multicast mgid detail mgid_valuewhere the mgid_value parameter is a number between 550 and 4095.Information similar to the following appears:Mgid........................................ 550Multicast Group Address..................... 239.255.255.250Vlan........................................ 0Rx Packet Count............................. 807399588No of clients............................... 1Client List................................. Client MAC Expire Time (mm:ss)
4-62Cisco Wireless LAN Controller Configuration GuideOL-21524-02Chapter 4 Configuring Controller SettingsConfiguring Client Roaming 00:13:02:23:82:ad 0:20Using the CLI to View an Access Point’s Multicast Client TableTo help troubleshoot roaming events, you can view an access point’s multicast client table from the controller by performing a remote debug of the access point.To view an access point’s multicast client table using the controller CLI, follow these steps:Step 1 Initiate a remote debug of the access point by entering this command:debug ap enable Cisco_APStep 2 See all of the MGIDs on the access point and the number of clients per WLAN by entering this command:debug ap command “show capwap mcast mgid all” Cisco_APStep 3 See all of the clients per MGID on the access point and the number of clients per WLAN by entering this command:debug ap command “show capwap mcast mgid id mgid_value” Cisco_APConfiguring Client RoamingThe Cisco UWN Solution supports seamless client roaming across lightweight access points managed by the same controller, between controllers in the same mobility group on the same subnet, and across controllers in the same mobility group on different subnets. Also, in controller software release 4.1 or later releases, client roaming with multicast packets is supported.You can adjust the default RF settings (RSSI, hysteresis, scan threshold, and transition time) to fine-tune the operation of client roaming using the controller GUI or CLI.Intra-Controller RoamingEach controller supports same-controller client roaming across access points managed by the same controller. This roaming is transparent to the client as the session is sustained, and the client continues using the same DHCP-assigned or client-assigned IP address. The controller provides DHCP functionality with a relay function. Same-controller roaming is supported in single-controller deployments and in multiple-controller deployments.Inter-Controller RoamingMultiple-controller deployments support client roaming across access points managed by controllers in the same mobility group and on the same subnet. This roaming is also transparent to the client because the session is sustained and a tunnel between controllers allows the client to continue using the same DHCP- or client-assigned IP address as long as the session remains active. The tunnel is torn down, and the client must reauthenticate when the client sends a DHCP Discover with a 0.0.0.0 client IP address or a 169.254.*.* client auto-IP address or when the operator-set session timeout is exceeded.
4-63Cisco Wireless LAN Controller Configuration GuideOL-21524-02Chapter 4 Configuring Controller SettingsConfiguring Client RoamingInter-Subnet RoamingMultiple-controller deployments support client roaming across access points managed by controllers in the same mobility group on different subnets. This roaming is transparent to the client because the session is sustained and a tunnel between the controllers allows the client to continue using the same DHCP-assigned or client-assigned IP address as long as the session remains active. The tunnel is torn down, and the client must reauthenticate when the client sends a DHCP Discover with a 0.0.0.0 client IP address or a 169.254.*.* client auto-IP address or when the operator-set user timeout is exceeded.Voice-over-IP Telephone Roaming802.11 voice-over-IP (VoIP) telephones actively seek out associations with the strongest RF signal to ensure the best quality of service (QoS) and the maximum throughput. The minimum VoIP telephone requirement of 20-millisecond or shorter latency time for the roaming handover is easily met by the Cisco UWN Solution, which has an average handover latency of 5 or fewer milliseconds when open authentication is used. This short latency period is controlled by controllers rather than allowing independent access points to negotiate roaming handovers.The Cisco UWN Solution supports 802.11 VoIP telephone roaming across lightweight access points managed by controllers on different subnets, as long as the controllers are in the same mobility group. This roaming is transparent to the VoIP telephone because the session is sustained and a tunnel between controllers allows the VoIP telephone to continue using the same DHCP-assigned IP address as long as the session remains active. The tunnel is torn down, and the VoIP client must reauthenticate when the VoIP telephone sends a DHCP Discover with a 0.0.0.0 VoIP telephone IP address or a 169.254.*.* VoIP telephone auto-IP address or when the operator-set user timeout is exceeded.CCX Layer 2 Client RoamingThe controller supports five CCX Layer 2 client roaming enhancements: • Access point assisted roaming—This feature helps clients save scanning time. When a CCXv2 client associates to an access point, it sends an information packet to the new access point listing the characteristics of its previous access point. Roaming time decreases when the client recognizes and uses an access point list built by compiling all previous access points to which each client was associated and sent (unicast) to the client immediately after association. The access point list contains the channels, BSSIDs of neighbor access points that support the client’s current SSID(s), and time elapsed since disassociation. • Enhanced neighbor list—This feature focuses on improving a CCXv4 client’s roam experience and network edge performance, especially when servicing voice applications. The access point provides its associated client information about its neighbors using a neighbor-list update unicast message. • Enhanced neighbor list request (E2E)—The End-2-End specification is a Cisco and Intel joint program that defines new protocols and interfaces to improve the overall voice and roaming experience. It applies only to Intel clients in a CCX environment. Specifically, it enables Intel clients to request a neighbor list at will. When this occurs, the access point forwards the request to the controller. The controller receives the request and replies with the current CCX roaming sublist of neighbors for the access point to which the client is associated.
4-64Cisco Wireless LAN Controller Configuration GuideOL-21524-02Chapter 4 Configuring Controller SettingsConfiguring Client RoamingNote To see whether a particular client supports E2E, choose Wireless > Clients on the controller GUI, click the Detail link for the desired client, and look at the E2E Version text box under Client Properties. • Roam reason report—This feature enables CCXv4 clients to report the reason why they roamed to a new access point. It also allows network administrators to build and monitor a roam history. • Directed roam request—This feature enables the controller to send directed roam requests to the client in situations when the controller can better service the client on an access point different from the one to which it is associated. In this case, the controller sends the client a list of the best access points that it can join. The client can either honor or ignore the directed roam request. Non-CCX clients and clients running CCXv3 or below must not take any action. No configuration is required for this feature.Controller software release 4.2 or later releases support CCX versions 1 through 5. CCX support is enabled automatically for every WLAN on the controller and cannot be disabled. The controller stores the CCX version of the client in its client database and uses it to generate and respond to CCX frames appropriately. Clients must support CCXv4 or v5 (or CCXv2 for access point assisted roaming) in order to utilize these roaming enhancements. See the “Configuring Cisco Client Extensions” section on page 7-52 for more information on CCX.The roaming enhancements mentioned above are enabled automatically, with the appropriate CCX support.Note Hybrid-REAP access points in standalone mode do not support CCX Layer 2 roaming.Note Client roaming between 600 Series Access points is not supported.Using the GUI to Configure CCX Client Roaming ParametersTo configure CCX client roaming parameters using the controller GUI, follow these steps:Step 1 Choose Wireless > 802.11a/n (or 802.11b/g/n) > Client Roaming. The 802.11a (or 802.11b) > Client Roaming page appears (see Figure 4-27).
4-65Cisco Wireless LAN Controller Configuration GuideOL-21524-02Chapter 4 Configuring Controller SettingsConfiguring Client RoamingFigure 4-27 802.11a > Client Roaming PageStep 2 If you want to fine-tune the RF parameters that affect client roaming, choose Custom from the Mode drop-down list and go to Step 3. If you want to leave the RF parameters at their default values, choose Default and go to Step 8.Step 3 In the Minimum RSSI text box, enter a value for the minimum received signal strength indicator (RSSI) required for the client to associate to an access point. If the client’s average received signal power dips below this threshold, reliable communication is usually impossible. Therefore, clients must already have found and roamed to another access point with a stronger signal before the minimum RSSI value is reached.The range is –80 to –90 dBm.The default is –85 dBm.Step 4 In the Hysteresis text box, enter a value to indicate how much greater the signal strength of a neighboring access point must be in order for the client to roam to it. This parameter is intended to reduce the amount of roaming between access points if the client is physically located on or near the border between two access points.The range is 3 to 20 dB.The default is 3 dB.Step 5 In the Scan Threshold text box, enter the minimum RSSI that is allowed before the client should roam to a better access point. When the RSSI drops below the specified value, the client must be able to roam to a better access point within the specified transition time. This parameter also provides a power-save method to minimize the time that the client spends in active or passive scanning. For example, the client can scan slowly when the RSSI is above the threshold and scan more rapidly when the RSSI is below the threshold.The range is –70 to –77 dBm.The default is –72 dBm.Step 6 In the Transition Time text box, enter the maximum time allowed for the client to detect a suitable neighboring access point to roam to and to complete the roam, whenever the RSSI from the client’s associated access point is below the scan threshold.The Scan Threshold and Transition Time parameters guarantee a minimum level of client roaming performance. Together with the highest expected client speed and roaming hysteresis, these parameters make it possible to design a wireless LAN network that supports roaming simply by ensuring a certain minimum overlap distance between access points.The range is 1 to 10 seconds.The default is 5 seconds.
4-66Cisco Wireless LAN Controller Configuration GuideOL-21524-02Chapter 4 Configuring Controller SettingsConfiguring Client RoamingStep 7 Click Apply to commit your changes.Step 8 Click Save Configuration to save your changes.Step 9 Repeat this procedure if you want to configure client roaming for another radio band (802.11a or 802.11b/g).Using the CLI to Configure CCX Client Roaming ParametersConfigure CCX Layer 2 client roaming parameters by entering this command:config {802.11a | 802.11b} l2roam rf-params {default | custom min_rssi roam_hyst scan_thresh trans_time}Note See the description, range, and default value of each RF parameter in the “Using the GUI to Configure CCX Client Roaming Parameters” section on page 4-64.Using the CLI to Obtain CCX Client Roaming InformationTo view information about CCX Layer 2 client roaming using the controller CLI, follow these steps:Step 1 View the current RF parameters configured for client roaming for the 802.11a or 802.11b/g network by entering this command:show {802.11a | 802.11b} l2roam rf-paramStep 2 View the CCX Layer 2 client roaming statistics for a particular access point by entering this command:show {802.11a | 802.11b} l2roam statistics ap_macThis command provides the following information: • The number of roam reason reports received • The number of neighbor list requests received • The number of neighbor list reports sent • The number of broadcast neighbor updates sentStep 3 View the roaming history for a particular client by entering this command:show client roam-history client_macThis command provides the following information: • The time when the report was received • The MAC address of the access point to which the client is currently associated • The MAC address of the access point to which the client was previously associated • The channel of the access point to which the client was previously associated • The SSID of the access point to which the client was previously associated • The time when the client disassociated from the previous access point • The reason for the client roam
4-67Cisco Wireless LAN Controller Configuration GuideOL-21524-02Chapter 4 Configuring Controller SettingsConfiguring IP-MAC Address BindingUsing the CLI to Debug CCX Client Roaming IssuesIf you experience any problems with CCX Layer 2 client roaming, enter this command:debug l2roam [detail | error | packet | all] {enable | disable}Configuring IP-MAC Address BindingIn controller software release 5.2 or later releases, the controller enforces strict IP address-to-MAC address binding in client packets. The controller checks the IP address and MAC address in a packet, compares them to the addresses that are registered with the controller, and forwards the packet only if they both match. In previous releases, the controller checks only the MAC address of the client and ignores the IP address.Note If the IP address or MAC address of the packet has been spoofed, the check does not pass, and the controller discards the packet. Spoofed packets can pass through the controller only if both the IP and MAC addresses are spoofed together and changed to that of another valid client on the same controller.To configure IP-MAC address binding using the controller CLI, follow these steps:Step 1 Enable or disable IP-MAC address binding by entering this command:config network ip-mac-binding {enable | disable}The default value is enabled.Note You might want to disable this binding check if you have a routed network behind a workgroup bridge (WGB).Note You must disable this binding check in order to use an access point in sniffer mode if the access point is joined to a Cisco 5500 Series Controller, a Cisco 2100 Series Controller, or a controller network module that runs software release 6.0 or later releases.Step 2 Save your changes by entering this command:save configStep 3 View the status of IP-MAC address binding by entering this command:show network summaryInformation similar to the following appears:RF-Network Name............................. ctrl4404Web Mode.................................... DisableSecure Web Mode............................. EnableSecure Web Mode Cipher-Option High.......... DisableSecure Web Mode Cipher-Option SSLv2......... Enable...IP/MAC Addr Binding Check ............... Enabled ...
4-68Cisco Wireless LAN Controller Configuration GuideOL-21524-02Chapter 4 Configuring Controller SettingsConfiguring Quality of ServiceConfiguring Quality of ServiceQuality of service (QoS) refers to the capability of a network to provide better service to selected network traffic over various technologies. The primary goal of QoS is to provide priority including dedicated bandwidth, controlled jitter and latency (required by some real-time and interactive traffic), and improved loss characteristics.The controller supports four QoS levels: • Platinum/Voice—Ensures a high quality of service for voice over wireless. • Gold/Video—Supports high-quality video applications. • Silver/Best Effort—Supports normal bandwidth for clients. This is the default setting. • Bronze/Background—Provides the lowest bandwidth for guest services. Note VoIP clients should be set to Platinum.You can configure the bandwidth of each QoS level using QoS profiles and then apply the profiles to WLANs. The profile settings are pushed to the clients associated to that WLAN. In addition, you can create QoS roles to specify different bandwidth levels for regular and guest users. Follow the instructions in this section to configure QoS profiles and QoS roles.Configuring Quality of Service ProfilesYou can use the controller GUI or CLI to configure the Platinum, Gold, Silver, and Bronze QoS profiles.Using the GUI to Configure QoS ProfilesTo configure QoS profiles using the controller GUI, follow these steps:Step 1 Disable the 802.11a and 802.11b/g networks so that you can configure the QoS profiles.To disable the radio networks, choose Wireless > 802.11a/n or 802.11b/g/n > Network, unselect the 802.11a (or 802.11b/g) Network Status check box, and click Apply.Step 2 Choose Wireless > QoS > Profiles to open the QoS Profiles page.Step 3 Click the name of the profile that you want to configure to open the Edit QoS Profile page (see Figure 4-28).
4-69Cisco Wireless LAN Controller Configuration GuideOL-21524-02Chapter 4 Configuring Controller SettingsConfiguring Quality of ServiceFigure 4-28 Edit QoS Profile PageStep 4 Change the description of the profile by modifying the contents of the Description text box.Step 5 Define the average data rate for TCP traffic per user by entering the rate in Kbps in the Average Data Rate text box. You can enter a value between 0 and 60,000 Kbps (inclusive). A value of 0 imposes no bandwidth restriction on the profile.Step 6 Define the peak data rate for TCP traffic per user by entering the rate in Kbps in the Burst Data Rate text box. You can enter a value between 0 and 60,000 Kbps (inclusive). A value of 0 imposes no bandwidth restriction on the profile.Note The Burst Data Rate should be greater than or equal to the Average Data Rate. Otherwise, the QoS policy may block traffic to and from the wireless client.Step 7 Define the average real-time rate for UDP traffic on a per-user basis by entering the rate in Kbps in the Average Real-Time Rate text box. You can enter a value between 0 and 60,000 Kbps (inclusive). A value of 0 imposes no bandwidth restriction on the profile.Step 8 Define the peak real-time rate for UDP traffic on a per-user basis by entering the rate in Kbps in the Burst Real-Time Rate text box. You can enter a value between 0 and 60,000 Kbps (inclusive). A value of 0 imposes no bandwidth restriction on the profile.Note The Burst Real-Time Rate should be greater than or equal to the Average Real-Time Rate. Otherwise, the QoS policy may block traffic to and from the wireless client.Step 9 In the Maximum RF Usage Per AP text box, enter the maximum percentage of bandwidth given to a user class.For example, if you set 50% for Bronze QoS, all the Bronze WLAN users combined will not get more than 50% of the available RF bandwidth. Actual throughput could be less than 50%, but it will never be more than 50%. Step 10 In the Queue Depth text box, enter the maximum number of packets that access points keep in their queues. Any additional packets are dropped.
4-70Cisco Wireless LAN Controller Configuration GuideOL-21524-02Chapter 4 Configuring Controller SettingsConfiguring Quality of ServiceStep 11 Choose 802.1p from the Protocol Type drop-down list and enter the maximum priority value in the 802.1p Tag text box to define the maximum value (0–7) for the priority tag associated with packets that fall within the profile.The tagged packets include CAPWAP data packets (between access points and the controller) and packets sent toward the core network.Note If a QoS profile has 802.1p tagging configured and if this QoS profile is assigned to a WLAN that uses an untagged interface on the controller, the client traffic will be blocked.Step 12 Click Apply to commit your changes.Step 13 Click Save Configuration to save your changes.Step 14 Reenable the 802.11a and 802.11b/g networks.To enable the radio networks, choose Wireless > 802.11a/n or 802.11b/g/n > Network, select the 802.11a (or 802.11b/g) Network Status check box, and click Apply.Step 15 Follow the instructions in the “Assigning a QoS Profile to a WLAN” section on page 7-37 to assign a QoS profile to a WLAN.Using the CLI to Configure QoS ProfilesTo configure the Platinum, Gold, Silver, and Bronze QoS profiles using the controller CLI, follow these steps:Step 1 Disable the 802.11a and 802.11b/g networks so that you can configure the QoS profiles by entering these commands:config 802.11a disable networkconfig 802.11b disable networkStep 2 Change the profile description by entering this command:config qos description {bronze | silver | gold | platinum} descriptionStep 3 Define the average data rate in Kbps for TCP traffic per user by entering this command:config qos average-data-rate {bronze | silver | gold | platinum} rateNote For the rate parameter, you can enter a value between 0 and 60,000 Kbps (inclusive). A value of 0 imposes no bandwidth restriction on the QoS profile.Step 4 Define the peak data rate in Kbps for TCP traffic per user by entering this command:config qos burst-data-rate {bronze | silver | gold | platinum} rateStep 5 Define the average real-time rate in Kbps for UDP traffic per user by entering this command:config qos average-realtime-rate {bronze | silver | gold | platinum} rateStep 6 Define the peak real-time rate in Kbps for UDP traffic per user by entering this command:config qos burst-realtime-rate {bronze | silver | gold | platinum} rateStep 7 Specify the maximum percentage of RF usage per access point by entering this command:
4-71Cisco Wireless LAN Controller Configuration GuideOL-21524-02Chapter 4 Configuring Controller SettingsConfiguring Quality of Serviceconfig qos max-rf-usage {bronze | silver | gold | platinum} usage_percentageStep 8 Define the maximum value (0–7) for the priority tag associated with packets that fall within the profile, by entering these commands:config qos protocol-type {bronze | silver | gold | platinum} dot1pconfig qos dot1p-tag {bronze | silver | gold | platinum} tagThe tagged packets include CAPWAP data packets (between access points and the controller) and packets sent toward the core network.Note If a QoS profile has 802.1p tagging configured and if this QoS profile is assigned to a WLAN that uses an untagged interface on the controller, the client traffic will be blocked.Step 9 Reenable the 802.11a and 802.11b/g networks so that you can configure the QoS profiles by entering these commands:config 802.11a enable networkconfig 802.11b enable networkStep 10 Follow the instructions in the “Assigning a QoS Profile to a WLAN” section on page 7-37 to assign a QoS profile to a WLAN.Configuring Quality of Service RolesAfter you configure a QoS profile and apply it to a WLAN, it limits the bandwidth level of clients associated to that WLAN. Multiple WLANs can be mapped to the same QoS profile, which can result in bandwidth contention between regular users (such as employees) and guest users. In order to prevent guest users from using the same level of bandwidth as regular users, you can create QoS roles with different (and presumably lower) bandwidth contracts and assign them to guest users.You can use the controller GUI or CLI to configure up to ten QoS roles for guest users.Note If you choose to create an entry on the RADIUS server for a guest user and enable RADIUS authentication for the WLAN on which web authentication is performed rather than adding a guest user to the local user database from the controller, you need to assign the QoS role on the RADIUS server itself. To do so, a “guest-role” Airespace attribute needs to be added on the RADIUS server with a datatype of “string” and a return value of “11.” This attribute is sent to the controller when authentication occurs. If a role with the name returned from the RADIUS server is found configured on the controller, the bandwidth associated to that role is enforced for the guest user after authentication completes successfully.Using the GUI to Configure QoS RolesTo configure QoS roles using the controller GUI, follow these steps:Note Guest User role is not supported on Cisco 2106 Controller.
4-72Cisco Wireless LAN Controller Configuration GuideOL-21524-02Chapter 4 Configuring Controller SettingsConfiguring Quality of ServiceStep 1 Choose Wireless > QoS > Roles to open the QoS Roles for Guest Users page (see Figure 4-29).Figure 4-29 QoS Roles for Guest Users PageThis page shows any existing QoS roles for guest users.Note If you want to delete a QoS role, hover your cursor over the blue drop-down arrow for that role and choose Remove.Step 2 Click New to create a new QoS role. The QoS Role Name > New page appears.Step 3 In the Role Name text box, enter a name for the new QoS role. The name should uniquely identify the role of the QoS user (such as Contractor, Vendor, and so on).Step 4 Click Apply to commit your changes.Step 5 Click the name of the QoS role to edit the bandwidth of a QoS role. The Edit QoS Role Data Rates page appears (see Figure 4-30).Figure 4-30 Edit QoS Role Data Rates PageNote The values that you configure for the per-user bandwidth contracts affect only the amount of bandwidth going downstream (from the access point to the wireless client). They do not affect the bandwidth for upstream traffic (from the client to the access point).
4-73Cisco Wireless LAN Controller Configuration GuideOL-21524-02Chapter 4 Configuring Controller SettingsConfiguring Quality of ServiceStep 6 Define the average data rate for TCP traffic on a per-user basis by entering the rate in Kbps in the Average Data Rate text box. You can enter a value between 0 and 60,000 Kbps (inclusive). A value of 0 imposes no bandwidth restriction on the QoS role.Step 7 Define the peak data rate for TCP traffic on a per-user basis by entering the rate in Kbps in the Burst Data Rate text box. You can enter a value between 0 and 60,000 Kbps (inclusive). A value of 0 imposes no bandwidth restriction on the QoS role.Note The Burst Data Rate should be greater than or equal to the Average Data Rate. Otherwise, the QoS policy may block traffic to and from the wireless client.Step 8 Define the average real-time rate for UDP traffic on a per-user basis by entering the rate in Kbps in the Average Real-Time Rate text box. You can enter a value between 0 and 60,000 Kbps (inclusive). A value of 0 imposes no bandwidth restriction on the QoS role.Step 9 Define the peak real-time rate for UDP traffic on a per-user basis by entering the rate in Kbps in the Burst Real-Time Rate text box. You can enter a value between 0 and 60,000 Kbps (inclusive). A value of 0 imposes no bandwidth restriction on the QoS role.Note The Burst Real-Time Rate should be greater than or equal to the Average Real-Time Rate. Otherwise, the QoS policy may block traffic to and from the wireless client.Step 10 Click Apply to commit your changes.Step 11 Click Save Configuration to save your changes.Step 12 Apply a QoS role to a guest user, by following the steps in the “Using the GUI to Configure Local Network Users” section on page 6-32.Using the CLI to Configure QoS RolesTo configure QoS roles using the controller CLI, follow these steps:Step 1 Create a QoS role for a guest user by entering this command:config netuser guest-role create role_nameNote If you want to delete a QoS role, enter this command: config netuser guest-role delete role_nameStep 2 Configure the bandwidth contracts for a QoS role by entering these commands: • config netuser guest-role qos data-rate average-data-rate role_name rate—Configures the average data rate for TCP traffic on a per-user basis. • config netuser guest-role qos data-rate burst-data-rate role_name rate—Configures the peak data rate for TCP traffic on a per-user basis.Note The Burst Data Rate should be greater than or equal to the Average Data Rate. Otherwise, the QoS policy may block traffic to and from the wireless client.
4-74Cisco Wireless LAN Controller Configuration GuideOL-21524-02Chapter 4 Configuring Controller SettingsConfiguring Quality of Service • config netuser guest-role qos data-rate average-realtime-rate role_name rate—Configures the average real-time rate for UDP traffic on a per-user basis. • config netuser guest-role qos data-rate burst-realtime-rate role_name rate—Configures the peak real-time rate for UDP traffic on a per-user basis.Note The Burst Real-Time Rate should be greater than or equal to the Average Real-Time Rate. Otherwise, the QoS policy may block traffic to and from the wireless client.Note For the role_name parameter in each of these commands, enter a name for the new QoS role. The name should uniquely identify the role of the QoS user (such as Contractor, Vendor, and so on). For the rate parameter, you can enter a value between 0 and 60,000 Kbps (inclusive). A value of 0 imposes no bandwidth restriction on the QoS role.Step 3 Apply a QoS role to a guest user by entering this command:config netuser guest-role apply username role_nameFor example, the role of Contractor could be applied to guest user jsmith.Note If you do not assign a QoS role to a guest user, the Role text box in the User Details shows the role as “default.” The bandwidth contracts for this user are defined in the QoS profile for the WLAN. Note If you want to unassign a QoS role from a guest user, enter the config netuser guest-role apply username default command. This user now uses the bandwidth contracts defined in the QoS profile for the WLAN.Step 4 Save your changes by entering this command:save configStep 5 See a list of the current QoS roles and their bandwidth parameters by entering this command:show netuser guest-rolesInformation similar to the following appears:Role Name........................................ Contractor Average Data Rate........................... 10 Burst Data Rate............................. 10 Average Realtime Rate....................... 100 Burst Realtime Rate......................... 100Role Name........................................ Vendor Average Data Rate........................... unconfigured Burst Data Rate............................. unconfigured Average Realtime Rate....................... unconfigured Burst Realtime Rate...................... unconfigured
4-75Cisco Wireless LAN Controller Configuration GuideOL-21524-02Chapter 4 Configuring Controller SettingsConfiguring Voice and Video ParametersConfiguring Voice and Video ParametersThree parameters on the controller affect voice and/or video quality: • Call admission control • Expedited bandwidth requests • Unscheduled automatic power save deliveryEach of these parameters is supported in Cisco Compatible Extensions (CCX) v4 and v5. See the “Configuring Access Point Groups” section on page 7-55 for more information on CCX.Note CCX is not supported on the AP1030.Traffic stream metrics (TSM) can be used to monitor and report issues with voice quality.Call Admission ControlCall admission control (CAC) enables an access point to maintain controlled quality of service (QoS) when the wireless LAN is experiencing congestion. The Wi-Fi Multimedia (WMM) protocol deployed in CCXv3 ensures sufficient QoS as long as the wireless LAN is not congested. However, in order to maintain QoS under differing network loads, CAC in CCXv4 is required. Two types of CAC are available: bandwidth-based CAC and load-based CAC.Bandwidth-Based CACBandwidth-based, or static, CAC enables the client to specify how much bandwidth or shared medium time is required to accept a new call and in turn enables the access point to determine whether it is capable of accommodating this particular call. The access point rejects the call if necessary in order to maintain the maximum allowed number of calls with acceptable quality.The QoS setting for a WLAN determines the level of bandwidth-based CAC support. To use bandwidth-based CAC with voice applications, the WLAN must be configured for Platinum QoS. To use bandwidth-based CAC with video applications, the WLAN must be configured for Gold QoS. Also, make sure that WMM is enabled for the WLAN. See the “Configuring 802.3 Bridging” section on page 4-55 for QoS and WMM configuration instructions.Note You must enable admission control (ACM) for CCXv4 clients that have WMM enabled. Otherwise, bandwidth-based CAC does not operate properly.Load-Based CACLoad-based CAC incorporates a measurement scheme that takes into account the bandwidth consumed by all traffic types (including that from clients), co-channel access point loads, and collocated channel interference, for voice applications. Load-based CAC also covers the additional bandwidth consumption resulting from PHY and channel impairment.
4-76Cisco Wireless LAN Controller Configuration GuideOL-21524-02Chapter 4 Configuring Controller SettingsConfiguring Voice and Video ParametersIn load-based CAC, the access point continuously measures and updates the utilization of the RF channel (that is, the percentage of bandwidth that has been exhausted), channel interference, and the additional calls that the access point can admit. The access point admits a new call only if the channel has enough unused bandwidth to support that call. By doing so, load-based CAC prevents oversubscription of the channel and maintains QoS under all conditions of WLAN loading and interference.Note Load-based CAC is supported only on lightweight access points. If you disable load-based CAC, the access points start using bandwidth-based CAC.Expedited Bandwidth RequestsThe expedited bandwidth request feature enables CCXv5 clients to indicate the urgency of a WMM traffic specifications (TSPEC) request (for example, an e911 call) to the WLAN. When the controller receives this request, it attempts to facilitate the urgency of the call in any way possible without potentially altering the quality of other TSPEC calls that are in progress.You can apply expedited bandwidth requests to both bandwidth-based and load-based CAC. Expedited bandwidth requests are disabled by default. When this feature is disabled, the controller ignores all expedited requests and processes TSPEC requests as normal TSPEC requests.See Table 4-3 for examples of TSPEC request handling for normal TSPEC requests and expedited bandwidth requests.Note Controller software release 6.0 or later releases support admission control for TSPEC g711-40ms codec type.Note When video ACM is enabled, the controller rejects a video TSPEC if the non-MSDU size in the TSPEC is greater than 149 or the mean data rate is greater than 1 Kbps.Ta b l e 4-3 TSPEC Request Handling Examples CAC ModeReserved bandwidth for voice calls11. For bandwidth-based CAC, the voice call bandwidth usage is per access point and does not take into account co-channel access points. For load-based CAC, the voice call bandwidth usage is measured for the entire channel. Usage22. Bandwidth-based CAC (consumed voice and video bandwidth) or load-based CAC (channel utilization [Pb]).Normal TSPEC RequestTSPEC with Expedited Bandwidth RequestBandwidth-based CAC75% (default setting) Less than 75% Admitted AdmittedBetween 75% and 90% (reserved bandwidth for voice calls exhausted)Rejected AdmittedMore than 90% Rejected RejectedLoad-based CACLess than 75% Admitted AdmittedBetween 75% and 85% (reserved bandwidth for voice calls exhausted)Rejected AdmittedMore than 85% Rejected Rejected
4-77Cisco Wireless LAN Controller Configuration GuideOL-21524-02Chapter 4 Configuring Controller SettingsConfiguring Voice and Video ParametersU-APSDUnscheduled automatic power save delivery (U-APSD) is a QoS facility defined in IEEE 802.11e that extends the battery life of mobile clients. In addition to extending battery life, this feature reduces the latency of traffic flow delivered over the wireless media. Because U-APSD does not require the client to poll each individual packet buffered at the access point, it allows delivery of multiple downlink packets by sending a single uplink trigger packet. U-APSD is enabled automatically when WMM is enabled.Traffic Stream MetricsIn a voice-over-wireless LAN (VoWLAN) deployment, traffic stream metrics (TSM) can be used to monitor voice-related metrics on the client-access point air interface. It reports both packet latency and packet loss. You can isolate poor voice quality issues by studying these reports.The metrics consist of a collection of uplink (client side) and downlink (access point side) statistics between an access point and a client device that supports CCX v4 or later releases. If the client is not CCX v4 or CCXv5 compliant, only downlink statistics are captured. The client and access point measure these metrics. The access point also collects the measurements every 5 seconds, prepares 90-second reports, and then sends the reports to the controller. The controller organizes the uplink measurements on a client basis and the downlink measurements on an access point basis and maintains an hour’s worth of historical data. To store this data, the controller requires 32 MB of additional memory for uplink metrics and 4.8 MB for downlink metrics.TSM can be configured through either the GUI or the CLI on a per radio-band basis (for example, all 802.11a radios). The controller saves the configuration in flash memory so that it persists across reboots. After an access point receives the configuration from the controller, it enables TSM on the specified radio band.Note Access points support TSM in both local and hybrid-REAP modes.Using the GUI to Configure Voice ParametersTo configure voice parameters using the controller GUI, follow these steps:Note SIPs are available only on the Cisco 4400 Series and Cisco 5500 Series Controllers, and on the 1240, 1130, and 11n access points.Note SIP CAC should only be used for phones that support status code 17 and do not support TSPEC-based admission control.Note SIP CAC will be supported only if SIP snooping is enabled.Step 1 Make sure that the WLAN is configured for WMM and the Platinum QoS level.Step 2 Disable all WLANs with WMM enabled and click Apply.
4-78Cisco Wireless LAN Controller Configuration GuideOL-21524-02Chapter 4 Configuring Controller SettingsConfiguring Voice and Video ParametersStep 3 Choose Wireless and then Network under 802.11a/n or 802.11b/g/n, unselect the 802.11a (or 802.11b/g) Network Status check box, and click Apply to disable the radio network.Step 4 Choose Wireless > 802.11a/n or 802.11b/g/n > Media. The 802.11a (or 802.11b) > Media page appears (see Figure 4-31). The Voice tab is displayed by default.Figure 4-31 802.11a/n > Voice Parameters Page Step 5 Select the Admission Control (ACM) check box to enable bandwidth-based CAC for this radio band. The default value is disabled.Step 6 Select the Admission Control (ACM) you want to use by choosing from the following choices: • Load-based—To enable channel-based CAC. This is the default option. • Static—To enable radio-based CAC.Step 7 In the Max RF Bandwidth text box, enter the percentage of the maximum bandwidth allocated to clients for voice applications on this radio band. Once the client reaches the value specified, the access point rejects new calls on this radio band.The range is 5 to 85%. The sum of max bandwidth% of voice and video should not exceed 85%.The default is 75%.Step 8 In the Reserved Roaming Bandwidth text box, enter the percentage of maximum allocated bandwidth that is reserved for roaming voice clients. The controller reserves this bandwidth from the maximum allocated bandwidth for roaming voice clients.The range is 0 to 25%.The default is 6%.Step 9 To enable expedited bandwidth requests, select the Expedited Bandwidth check box. By default, this text box is disabled.Step 10 To enable SIP CAC support, select the SIP CAC Support check box. By default, SIP CAC this check box is disabled.
4-79Cisco Wireless LAN Controller Configuration GuideOL-21524-02Chapter 4 Configuring Controller SettingsConfiguring Voice and Video ParametersStep 11 From the SIP Codec drop-down list, choose one of the following options to set the codec name. The default value is G.711. The options are as follows: • User Defined • G.711 • G.729Step 12 In the SIP Bandwidth (kbps) text box, enter the bandwidth in kilo bits per second.The possible range is 8 to 64.The default value is 64.Note The SIP Bandwidth (kbps) text box is highlighted only when you select the SIP codec as User-Defined. If you choose the SIP codec as G.711, the SIP Bandwidth (kbps) text box is set to 64. If you choose the SIP codec as G.729, the SIP Bandwidth (kbps) text box is set to 8.Step 13 In the SIP Voice Sample Interval (msecs) text box, enter the value for the sample interval.Step 14 In the Maximum Calls text box, enter the maximum number of calls that can be made to this radio. The maximum call limit includes both direct and roaming-in calls. If the maximum call limit is reached, new or roaming-in calls will fail.The possible range is 0 to 25.The default value is 0, which indicates that there is no check for maximum call limit.Note If SIP CAC is supported and the CAC method is static, the Maximum Possible Voice Calls and Maximum Possible Roaming Reserved Calls fields appear.Step 15 Select the Metrics Collection check box to collect Traffic Stream Metrics. By default, this box is unselected. That is, the traffic stream metrics is not collected by default.Step 16 Click Apply to commit your changes.Step 17 Reenable all WMM WLANs and click Apply.Step 18 Choose Network under 802.11a/n or 802.11b/g/n, select the 802.11a (or 802.11b/g) Network Status check box, and click Apply to reenable the radio network.Step 19 Click Save Configuration to save your changes.Step 20 Repeat this procedure if you want to configure voice parameters for another radio band (802.11a or 802.11b/g).Using the GUI to Configure Video ParametersTo configure video parameters using the controller GUI, follow these steps:Step 1 Make sure that the WLAN is configured for WMM and the Gold QoS level.Step 2 Disable all WLANs with WMM enabled and click Apply.Step 3 Choose Wireless and then Network under 802.11a/n or 802.11b/g/n, unselect the 802.11a (or 802.11b/g) Network Status check box, and click Apply to disable the radio network.
4-80Cisco Wireless LAN Controller Configuration GuideOL-21524-02Chapter 4 Configuring Controller SettingsConfiguring Voice and Video ParametersStep 4 Choose Wireless > 802.11a/n or 802.11b/g/n > Media. The 802.11a (or 802.11b) > Media page appears (see Figure 4-32).Figure 4-32 802.11a > Video Parameters PageStep 5 Choose the Video tab to configure the CAC for Video parameters.Step 6 Select the Admission Control (ACM) check box to enable video CAC for this radio band. The default value is disabled.Step 7 In the Max RF Bandwidth text box, enter the percentage of the maximum bandwidth allocated to clients for video applications on this radio band. Once the client reaches the value specified, the access point rejects new requests on this radio band.The range is 5 to 85%. The sum of maximum bandwidth% of voice and video should not exceed 85%.The default is 0%.Step 8 Click Apply to commit your changes.Step 9 Reenable all WMM WLANs and click Apply.Step 10 Choose Network under 802.11a/n or 802.11b/g/n, select the 802.11a (or 802.11b/g) Network Status check box, and click Apply to reenable the radio network.Step 11 Click Save Configuration to save your changes.Step 12 Repeat this procedure if you want to configure video parameters for another radio band (802.11a or 802.11b/g).Using the GUI to View Voice and Video SettingsTo view voice and video settings using the controller GUI, follow these steps:Step 1 Choose Monitor > Clients to open the Clients page (see Figure 4-33).
4-81Cisco Wireless LAN Controller Configuration GuideOL-21524-02Chapter 4 Configuring Controller SettingsConfiguring Voice and Video ParametersFigure 4-33 Clients PageStep 2 Click the MAC address of the desired client to open the Clients > Detail page (see Figure 4-34).
4-82Cisco Wireless LAN Controller Configuration GuideOL-21524-02Chapter 4 Configuring Controller SettingsConfiguring Voice and Video ParametersFigure 4-34 Clients > Detail PageThis page shows the U-APSD status (if enabled) for this client under Quality of Service Properties.Step 3 Click Back to return to the Clients page.
4-83Cisco Wireless LAN Controller Configuration GuideOL-21524-02Chapter 4 Configuring Controller SettingsConfiguring Voice and Video ParametersStep 4 See the TSM statistics for a particular client and the access point to which this client is associated as follows:a. Hover your cursor over the blue drop-down arrow for the desired client and choose 802.11aTSM or 802.11b/g TSM. The Clients > AP page appears.b. Click the Detail link for the desired access point to open the Clients > AP > Traffic Stream Metrics page (see Figure 4-35).Figure 4-35 Clients > AP > Traffic Stream Metrics PageThis page shows the TSM statistics for this client and the access point to which it is associated. The statistics are shown in 90-second intervals. The timestamp text box shows the specific interval when the statistics were collected.Step 5 See the TSM statistics for a particular access point and a particular client associated to this access point, as follows:a. Choose Wireless > Access Points > Radios > 802.11a/n or 802.11b/g/n. The 802.11a/n Radios or 802.11b/g/n Radios page appears (see Figure 4-36).
4-84Cisco Wireless LAN Controller Configuration GuideOL-21524-02Chapter 4 Configuring Controller SettingsConfiguring Voice and Video ParametersFigure 4-36 802.11a/n Radios Pageb. Hover your cursor over the blue drop-down arrow for the desired access point and choose 802.11aTSM or 802.11b/g TSM. The AP > Clients page appears (see Figure 4-37).Figure 4-37 AP > Clients Pagec. Click the Detail link for the desired client to open the AP > Clients > Traffic Stream Metrics page (see Figure 4-38).
4-85Cisco Wireless LAN Controller Configuration GuideOL-21524-02Chapter 4 Configuring Controller SettingsConfiguring Voice and Video ParametersFigure 4-38 AP > Clients > Traffic Stream Metrics PageThis page shows the TSM statistics for this access point and a client associated to it. The statistics are shown in 90-second intervals. The timestamp text box shows the specific interval when the statistics were collected.Using the GUI to Configure Media ParametersTo configure Media parameters using the controller GUI, follow these steps:Step 1 Make sure that the WLAN is configured for WMM and the Gold QoS level.Step 2 Disable all WLANs with WMM enabled and click Apply.Step 3 Choose Wireless and then Network under 802.11a/n or 802.11b/g/n, unselect the 802.11a (or 802.11b/g) Network Status check box, and click Apply to disable the radio network.Step 4 Choose Wireless > 802.11a/n or 802.11b/g/n > Media. The 802.11a (or 802.11b) > Media > Parameters page appears (see Figure 4-39).
4-86Cisco Wireless LAN Controller Configuration GuideOL-21524-02Chapter 4 Configuring Controller SettingsConfiguring Voice and Video ParametersFigure 4-39 802.11a > Media Parameters PageStep 5 Choose the Media tab to open the Media page.Step 6 Select the Unicast Video Redirect check box to enable Unicast Video Redirect. The default value is disabled.Step 7 In the Maximum Media Bandwidth (0-85%) text box, enter the percentage of the maximum bandwidth to be allocated for media applications on this radio band. Once the client reaches the specified value, the access point rejects new calls on this radio band.The default value is 85%; valid values are from 0 to 85%.Step 8 In the Client Phy Rate text box, enter the value for the rate in kilobits per second at which the client operates.Step 9 In the Maximum Retry Percent (0-100%) text box, enter the percentage of the maximum retry. The default value is 80.Step 10 Select the Multicast Direct Enable check box to enable the Multicast Direct Enable text box. The default value is enabled.Step 11 From the Multicast Direct Max Number of Streams drop-down list, choose the maximum number of allowed multicast direct streams per radio. The range is 0 to 20 and auto. The default value is set to auto.Step 12 If you want to enable the best radio queue for this radio, select the Best Effort QoS Admission check box. The default value is disabled.Using the CLI to Configure SIP Based CACTo configure the SIP based CAC using the controller CLI, follow these steps:Step 1 Set the voice to the platinum QoS level by entering this command:config wlan qos wlan-id Platinum
4-87Cisco Wireless LAN Controller Configuration GuideOL-21524-02Chapter 4 Configuring Controller SettingsConfiguring Voice and Video ParametersStep 2 Enable the call-snooping feature for a particular WLAN by entering this command:config wlan call-snoop enable wlan-idStep 3 Enable the ACM to this radio by entering this command:config {802.11a | 802.11b} cac {voice | video} acm enableUsing the CLI to Configure Voice Parameters Note Make sure that you perform the “Using the CLI to Configure SIP Based CAC” procedure on page 4-86 before you do this procedure.To configure voice parameters using the controller CLI, follow these steps:Step 1 See all of the WLANs configured on the controller by entering this command:show wlan summaryStep 2 Make sure that the WLAN that you are planning to modify is configured for WMM and the QoS level is set to Platinum by entering this command:show wlan wlan_idStep 3 Disable all WLANs with WMM enabled prior to changing the voice parameters by entering command:config wlan disable wlan_idStep 4 Disable the radio network by entering this command:config {802.11a | 802.11b} disable networkStep 5 Save your settings by entering this command:save configStep 6 Enable or disable bandwidth-based voice CAC for the 802.11a or 802.11b/g network by entering this command:config {802.11a | 802.11b} cac voice acm {enable | disable}Step 7 Set the percentage of maximum bandwidth allocated to clients for voice applications on the 802.11a or 802.11b/g network by entering this command:config {802.11a | 802.11b} cac voice max-bandwidth bandwidthThe bandwidth range is 5 to 85%, and the default value is 75%. Once the client reaches the value specified, the access point rejects new calls on this network.Step 8 Set the percentage of maximum allocated bandwidth reserved for roaming voice clients by entering this command:config {802.11a | 802.11b} cac voice roam-bandwidth bandwidthThe bandwidth range is 0 to 25%, and the default value is 6%. The controller reserves this much bandwidth from the maximum allocated bandwidth for roaming voice clients.Step 9 Configure the codec name and sample interval as parameters and to calculate the required bandwidth per call by entering this command:config {802.11a | 802.11b} cac voice sip codec {g711 | g729} sample-interval number_msecs
4-88Cisco Wireless LAN Controller Configuration GuideOL-21524-02Chapter 4 Configuring Controller SettingsConfiguring Voice and Video ParametersStep 10 Configure the bandwidth that is required per call by entering this command:config {802.11a | 802.11b} cac voice sip bandwidth bandwidth_kbps sample-interval number_msecsStep 11 Reenable all WLANs with WMM enabled by entering this command:config wlan enable wlan_idStep 12 Reenable the radio network by entering this command:config {802.11a | 802.11b} enable networkStep 13 To view the TSM voice metrics, by entering this command:show [802.11a | 802.11b] cu-metrics AP_NameThe command also displays the channel utilization metrics.Step 14 Save your changes by entering this command:save configUsing the CLI to Configure Video Parameters Note Make sure that the“Using the CLI to Configure SIP Based CAC” procedure on page 4-86 are met.To configure video parameters using the controller CLI, follow these steps:Step 1 See all of the WLANs configured on the controller by entering this command:show wlan summaryStep 2 Make sure that the WLAN that you are planning to modify is configured for WMM and the QoS level is set to Gold by entering this command:show wlan wlan_idStep 3 Disable all WLANs with WMM enabled prior to changing the video parameters by entering this command:config wlan disable wlan_idStep 4 Disable the radio network by entering this command:config {802.11a | 802.11b} disable networkStep 5 Save your settings by entering this command:save configStep 6 Enable or disable video CAC for the 802.11a or 802.11b/g network by entering this command:config {802.11a | 802.11b} cac video acm {enable | disable}Step 7 Set the percentage of maximum bandwidth allocated to clients for video applications on the 802.11a or 802.11b/g network by entering this command:config {802.11a | 802.11b} cac video max-bandwidth bandwidthThe bandwidth range is 5 to 85%, and the default value is 5%. However, the maximum RF bandwidth cannot exceed 85% for voice and video. Once the client reaches the value specified, the access point rejects new calls on this network.
4-89Cisco Wireless LAN Controller Configuration GuideOL-21524-02Chapter 4 Configuring Controller SettingsConfiguring Voice and Video ParametersNote If this parameter is set to zero (0), the controller assumes that you do not want to do any bandwidth allocation and, therefore, allows all bandwidth requests.Step 8 Process or ignore the TSPEC inactivity timeout received from an access point by entering this command:config {802.11a | 802.11b} cac video tspec-inactivity-timeout {enable | ignore}Step 9 Reenable all WLANs with WMM enabled by entering this command:config wlan enable wlan_idStep 10 Reenable the radio network by entering this command:config {802.11a | 802.11b} enable networkStep 11 Save your settings by entering this command:save configUsing the CLI to View Voice and Video Settings To view voice and video settings using the controller CLI, follow these steps:Step 1 See the CAC configuration for the 802.11a or 802.11b/g network by entering this command:show ap stats {802.11a | 802.11b}Step 2 See the CAC statistics for a particular access point by entering this command:show ap stats {802.11a | 802.11b} ap_nameInformation similar to the following appears:Call Admission Control (CAC) Stats Voice Bandwidth in use(% of config bw)......... 0Total channel MT free........................ 0Total voice MT free.......................... 0Na Direct.................................... 0Na Roam...................................... 0 Video Bandwidth in use(% of config bw)......... 0 Total num of voice calls in progress........... 0 Num of roaming voice calls in progress......... 0 Total Num of voice calls since AP joined....... 0 Total Num of roaming calls since AP joined..... 0Total Num of exp bw requests received.......... 5 Total Num of exp bw requests admitted.......... 2 Num of voice calls rejected since AP joined...... 0 Num of roam calls rejected since AP joined..... 0 Num of calls rejected due to insufficient bw....0 Num of calls rejected due to invalid params.... 0 Num of calls rejected due to PHY rate.......... 0 Num of calls rejected due to QoS policy..... 0 In the example above, “MT” is medium time, “Na” is the number of additional calls, and “exp bw” is expedited bandwidth.
4-90Cisco Wireless LAN Controller Configuration GuideOL-21524-02Chapter 4 Configuring Controller SettingsConfiguring Voice and Video ParametersNote Suppose an AP has to be rebooted when a voice client associated with the AP is on an active call. After the AP is rebooted, the client continues to maintain the call, and during the time the AP is down, the database is not refreshed by the controller. Therefore, we recommend that all active calls are ended before the AP is taken down.Step 3 See the U-APSD status for a particular client by entering this command:show client detail client_macStep 4 See the TSM statistics for a particular client and the access point to which this client is associated by entering this command:show client tsm {802.11a | 802.11b} client_mac {ap_mac | all}The optional all command shows all access points to which this client has associated. Information similar to the following appears:Client Interface Mac: 00:01:02:03:04:05Measurement Duration: 90 seconds Timestamp 1st Jan 2006, 06:35:80 UpLink Stats ================ Average Delay (5sec intervals)............................35 Delay less than 10 ms.....................................20 Delay bet 10 - 20 ms......................................20 Delay bet 20 - 40 ms......................................20 Delay greater than 40 ms..................................20 Total packet Count.........................................80 Total packet lost count (5sec).............................10 Maximum Lost Packet count(5sec)............................5 Average Lost Packet count(5secs)...........................2 DownLink Stats ================ Average Delay (5sec intervals)............................35 Delay less than 10 ms.....................................20 Delay bet 10 - 20 ms......................................20 Delay bet 20 - 40 ms......................................20 Delay greater than 40 ms..................................20 Total packet Count.........................................80 Total packet lost count (5sec).............................10 Maximum Lost Packet count(5sec)............................5 Average Lost Packet count(5secs)...........................2Note The statistics are shown in 90-second intervals. The timestamp text box shows the specific interval when the statistics were collected.Note To clear the TSM statistics for a particular access point or all the access points to which this client is associated, enter the clear client tsm {802.11a | 802.11b} client_mac {ap_mac | all} command.Step 5 See the TSM statistics for a particular access point and a particular client associated to this access point by entering this command:show ap stats {802.11a | 802.11b} ap_name tsm {client_mac | all}
4-91Cisco Wireless LAN Controller Configuration GuideOL-21524-02Chapter 4 Configuring Controller SettingsConfiguring Voice and Video ParametersThe optional all command shows all clients associated to this access point. Information similar to the following appears:AP Interface Mac: 00:0b:85:01:02:03Client Interface Mac: 00:01:02:03:04:05Measurement Duration: 90 seconds Timestamp 1st Jan 2006, 06:35:80 UpLink Stats ================ Average Delay (5sec intervals)............................35 Delay less than 10 ms.....................................20 Delay bet 10 - 20 ms......................................20 Delay bet 20 - 40 ms......................................20 Delay greater than 40 ms..................................20 Total packet Count.........................................80 Total packet lost count (5sec).............................10 Maximum Lost Packet count(5sec)............................5 Average Lost Packet count(5secs)...........................2 DownLink Stats ================ Average Delay (5sec intervals)............................35 Delay less than 10 ms.....................................20 Delay bet 10 - 20 ms......................................20 Delay bet 20 - 40 ms......................................20 Delay greater than 40 ms..................................20 Total packet Count.........................................80 Total packet lost count (5sec).............................10 Maximum Lost Packet count(5sec)............................5 Average Lost Packet count(5secs)...........................2Note The statistics are shown in 90-second intervals. The timestamp text box shows the specific interval when the statistics were collected.Step 6 Enable or disable debugging for call admission control (CAC) messages, events, or packets by entering this command:debug cac {all | event | packet}{enable | disable}where all configures debugging for all CAC messages, event configures debugging for all CAC events, and packet configures debugging for all CAC packets.Step 7 Use the following command to perform voice diagnostics and to view the debug messages between a maximum of two 802.11 clients:debug client voice-diag {enable | disable} mac-id mac-id2 [verbose]The verbose mode is an optional argument. When the verbose option is used, all debug messages are displayed in the console. You can use this command to monitor a maximum of two 802.11 clients. If one of the clients is a non-WiFi client, only the 802.11 client is monitored for debug messages. Note It is implicitly assumed that the clients being monitored are on call.Note The debug command automatically stops after 60 minutes.Step 8 Use the following commands to view various voice-related parameters:
4-92Cisco Wireless LAN Controller Configuration GuideOL-21524-02Chapter 4 Configuring Controller SettingsConfiguring Voice and Video Parameters –show client voice-diag statusDisplays information about whether voice diagnostics is enabled or disabled. If enabled, will also displays information about the clients in the watch list and the time remaining for the diagnostics of the voice call.If voice diagnostics is disabled when the following commands are invoked, a message indicating that voice diagnostics is disabled appears. –show client voice-diag tspecDisplays the TSPEC information sent from the clients that are enabled for voice diagnostics. –show client voice-diag qos-map Displays information about the QoS/DSCP mapping and packet statistics in each of the four queues: VO, VI, BE, BK. The different DSCP values are also displayed. –show client voice-diag avrg_rssiDisplay the client’s RSSI values in the last 5 seconds when voice diagnostics is enabled. –show client voice-diag roam-historyDisplays information about the last three roaming calls. The output contains the timestamp, access point associated with roaming, roaming reason, and if there is a roaming failure, reason for roaming-failure. –show client calls {active | rejected} {802.11a | 802.11bg | all}This command lists the details of active TSPEC and SIP calls on the controller.Step 9 Use the following commands to troubleshoot video debug messages and statistics: –debug ap show stats {802.11b | 802.11a} ap-name multicast—Displays the access point’s supported multicast rates. –debug ap show stats {802.11b | 802.11a} ap-name load—Displays the access point’s QBSS and other statistics. –debug ap show stats {802.11b | 802.11a} ap-name tx-queue—Displays the access point’s transmit queue traffic statistics. –debug ap show stats {802.11b | 802.11a} ap-name client {all | video | <client-mac>}—Displays the access point’s client metrics. –debug ap show stats {802.11b | 802.11a} ap-name packet—Displays the access point’s packet statistics. –debug ap show stats {802.11b | 802.11a} ap-name video metrics—Displays the access point’s video metrics. –debug ap show stats video ap-name multicast mgid number —Displays an access point’s Layer 2 MGID database number. –debug ap show stats video ap-name admission—Displays an access point’s admission control statistics. –debug ap show stats video ap-name bandwidth—Displays an access point’s video bandwidth.
4-93Cisco Wireless LAN Controller Configuration GuideOL-21524-02Chapter 4 Configuring Controller SettingsConfiguring Voice Prioritization Using Preferred Call NumbersConfiguring Voice Prioritization Using Preferred Call NumbersYou can configure a controller to support calls from clients that do not support TSPEC-based calls. This feature is known as voice prioritization. These calls are given priority over other clients utilizing the voice pool. Voice prioritization is available only for SIP-based calls and not for TSPEC-based calls. If the bandwidth is available, it takes the normal flow and allocates the bandwidth to those calls.You can configure up to six preferred call numbers. When a call comes to one of the configured preferred numbers, the controller does not check on the maximum call limit. It invokes the CAC to allocate bandwidth for the preferred call. The bandwidth allocation is 85 percent of the entire bandwidth pool, not just from the maximum configured voice pool. The bandwidth allocation is the same even for roaming calls.You must configure the following before configuring voice prioritization: • Set WLAN QoS to platinum. • Enable ACM for the radio. • Enable SIP call snoopint on the WLAN.Note Cisco 4400, 5500, and 2106 Series Controllers and all nonmesh access points do not support voice prioritization.This section cotains the followig topics: • Using the GUI to Configure a Preferred Call Number, page 4-93 • Using the CLI to Configure a Preferred Call Number, page 4-94Using the GUI to Configure a Preferred Call NumberTo configure voice prioritization using the controller GUI, follow these steps:Step 1 Set the WLAN QoS profile to Platinum. See the “Using the GUI to Assign a QoS Profile to a WLAN” section on page 7-38.Step 2 Enable ACM for the WLAN radio. See the “Using the GUI to Configure Voice Parameters” section on page 4-77.Step 3 Enable SIP call snooping for the WLAN. See the “Using the GUI to Configure Media Session Snooping” section on page 7-43.Step 4 Choose Wireless > Advanced > Preferred Call to open the Preferred Call page.All calls configured on the controller appear.Note To remove a preferred call, hover your cursor over the blue drop-down arrow and choose Remove.Step 5 Click Add Number to add a new preferred call.Step 6 In the Call Index text box, enter the index that you want to assign to the call. Valid values are from 1 through 6.Step 7 In the Call Number text box, enter the number.
4-94Cisco Wireless LAN Controller Configuration GuideOL-21524-02Chapter 4 Configuring Controller SettingsConfiguring EDCA ParametersStep 8 Click Apply to add the new number.Using the CLI to Configure a Preferred Call NumberTo configure voice prioritization using the controller CLI, follow these steps:Step 1 Set the voice to the platinum QoS level by entering this command: config wlan qos wlan-id PlatinumStep 2 Enable the ACM to this radio by entering this command:config {802.11a | 802.11b} cac {voice | video} acm enableStep 3 Enable the call-snooping feature for a particular WLAN by entering this command:config wlan call-snoop enable wlan-idStep 4 Add a new preferred call by entering this command:config advanced sip-preferred-call-no call_index {call_number | none}Step 5 Remove a preferred call by entering this command:config advanced sip-preferred-call-no call_index noneStep 6 View the preferred call statistics by entering the following command:show ap stats {802.11{a | b} | wlan} ap_nameStep 7 Enter the following command to list the preferred call numbers:show advanced sip-preferred-call-noConfiguring EDCA ParametersEnhanced distributed channel access (EDCA) parameters are designed to provide preferential wireless channel access for voice, video, and other quality-of-service (QoS) traffic. Follow the instructions in this section to configure EDCA parameters using the controller GUI or CLI.Using the GUI to Configure EDCA ParametersTo configure EDCA parameters using the controller GUI, follow these steps:Step 1 Choose Wireless and then Network under 802.11a/n or 802.11b/g/n, unselect the 802.11a (or 802.11b/g) Network Status check box, and click Apply to disable the radio network.Step 2 Choose EDCA Parameters under 802.11a/n or 802.11b/g/n. The 802.11a (or 802.11b/g) > EDCA Parameters page appears (see Figure 4-40).
4-95Cisco Wireless LAN Controller Configuration GuideOL-21524-02Chapter 4 Configuring Controller SettingsConfiguring EDCA ParametersFigure 4-40 802.11a > EDCA Parameters PageStep 3 Choose one of the following options from the EDCA Profile drop-down list: • WMM—Enables the Wi-Fi Multimedia (WMM) default parameters. This is the default value. Choose this option when voice or video services are not deployed on your network. • Spectralink Voice Priority—Enables SpectraLink voice priority parameters. Choose this option if SpectraLink phones are deployed on your network to improve the quality of calls. • Voice Optimized—Enables EDCA voice-optimized profile parameters. Choose this option when voice services other than SpectraLink are deployed on your network. • Voice & Video Optimized—Enables EDCA voice- and video-optimized profile parameters. Choose this option when both voice and video services are deployed on your network.Note If you deploy video services, admission control (ACM) must be disabled.Step 4 If you want to enable MAC optimization for voice, select the Enable Low Latency MAC check box. Otherwise, leave this check box unselected, which is the default value. This feature enhances voice performance by controlling packet retransmits and appropriately aging out voice packets on lightweight access points, which improves the number of voice calls serviced per access point.Note We do not recommend you to enable low latency MAC. You should enable low latency MAC only if the WLAN allows WMM clients. If WMM is enabled, then low latency MAC can be used with any of the EDCA profiles. See the “Configuring QoS Enhanced BSS” section on page 7-39 for instructions on enabling WMM.Step 5 Click Apply to commit your changes.Step 6 To reenable the radio network, choose Network under 802.11a/n or 802.11b/g/n, select the 802.11a (or 802.11b/g) Network Status check box, and click Apply.Step 7 Click Save Configuration to save your changes.Using the CLI to Configure EDCA Parameters To configure EDCA parameters using the controller CLI, follow these steps:
4-96Cisco Wireless LAN Controller Configuration GuideOL-21524-02Chapter 4 Configuring Controller SettingsConfiguring the Cisco Discovery ProtocolStep 1 Disable the radio network by entering this command:config {802.11a | 802.11b} disable networkStep 2 Save your settings by entering this command:save configStep 3 Enable a specific EDCA profile by entering this command:config advanced {802.11a | 802.11b} edca-parameters ?where ? is one of the following: • wmm-default—Enables the Wi-Fi Multimedia (WMM) default parameters. This is the default value. Choose this option when voice or video services are not deployed on your network. • svp-voice—Enables SpectraLink voice priority parameters. Choose this option if SpectraLink phones are deployed on your network to improve the quality of calls. • optimized-voice—Enables EDCA voice-optimized profile parameters. Choose this option when voice services other than SpectraLink are deployed on your network. • optimized-video-voice—Enables EDCA voice- and video-optimized profile parameters. Choose this option when both voice and video services are deployed on your network.Note If you deploy video services, admission control (ACM) must be disabled.Step 4 View the current status of MAC optimization for voice by entering this command:show {802.11a | 802.11b}Information similar to the following appears:Voice-mac-optimization...................Disabled Step 5 Enable or disable MAC optimization for voice by entering this command:config advanced {802.11a | 802.11b} voice-mac-optimization {enable | disable}This feature enhances voice performance by controlling packet retransmits and appropriately aging out voice packets on lightweight access points, which improves the number of voice calls serviced per access point. The default value is disabled.Step 6 Reenable the radio network by entering this command:config {802.11a | 802.11b} enable networkStep 7 Save your settings by entering this command:save configConfiguring the Cisco Discovery ProtocolThe Cisco Discovery Protocol (CDP) is a device discovery protocol that runs on all Cisco-manufactured equipment. A device enabled with CDP sends out periodic interface updates to a multicast address in order to make itself known to neighboring devices.
4-97Cisco Wireless LAN Controller Configuration GuideOL-21524-02Chapter 4 Configuring Controller SettingsConfiguring the Cisco Discovery ProtocolThe default value for the frequency of periodic transmissions is 60 seconds, and the default advertised time-to-live value is 180 seconds. The second and latest version of the protocol, CDPv2, introduces new time-length-values (TLVs) and provides a reporting mechanism that allows for more rapid error tracking, which reduces downtime.CDPv1 and CDPv2 are supported on the following devices: • Cisco 5500, 4400, 2500, and 2100 Series ControllersNote CDP is not supported on the controllers that are integrated into Cisco switches and routers, including those in the Catalyst 3750G Integrated Wireless LAN Controller Switch, the Cisco WiSM, and the Cisco 28/37/38xx Series Integrated Services Router. However, you can use the show ap cdp neighbors detail {Cisco_AP | all} command on these controllers in order to see the list of CDP neighbors for the access points that are connected to the controller. • CAPWAP-enabled access points • An access point connected directly to a Cisco 5500, 4400, or 2100 Series ControllerNote To use the Intelligent Power Management feature, ensure that CDPv2 is enabled on the Cisco 2100 and 2500 Series Controllers. CDP v2 is enabled by default.Note The OEAP 600 access points do not support CDP.This support enables network management applications to discover Cisco devices.These TLVs are supported by both the controller and the access point: • Device-ID TLV: 0x0001—The host name of the controller, the access point, or the CDP neighbor. • Address TLV: 0x0002—The IP address of the controller, the access point, or the CDP neighbor. • Port-ID TLV: 0x0003—The name of the interface on which CDP packets are sent out. • Capabilities TLV: 0x0004—The capabilities of the device. The controller sends out this TLV with a value of Host: 0x10, and the access point sends out this TLV with a value of Transparent Bridge: 0x02. • Version TLV: 0x0005—The software version of the controller, the access point, or the CDP neighbor. • Platform TLV: 0x0006—The hardware platform of the controller, the access point, or the CDP neighbor. • Power Available TLV: 0x001a— The amount of power available to be transmitted by power sourcing equipment to permit a device to negotiate and select an appropriate power setting. • Full/Half Duplex TLV: 0x000b—The full- or half-duplex mode of the Ethernet link on which CDP packets are sent out. These TLVs are supported only by the access point: • Power Consumption TLV: 0x0010—The maximum amount of power consumed by the access point. • Power Request TLV:0x0019—The amount of power to be transmitted by a powerable device in order to negotiate a suitable power level with the supplier of the network power.
4-98Cisco Wireless LAN Controller Configuration GuideOL-21524-02Chapter 4 Configuring Controller SettingsConfiguring the Cisco Discovery ProtocolYou can configure CDP and view CDP information using the GUI in controller software release 4.1 or later or the CLI in controller software release 4.0 or later releases. Figure 4-41 shows a sample network that you can use as a reference when performing the procedures in this section.Note Changing the CDP configuration on the controller does not change the CDP configuration on the access points that are connected to the controller. You must enable and disable CDP separately for each access point.You can enable or disable the CDP state on all or specific interfaces and radios. This configuration can be applied to all access points or a specific access point. For more information on how to configure CDP on the interfaces and radios, see the “Using the GUI to Configure the Cisco Discovery Protocol” section on page 4-99 and the “Using the CLI to Configure the Cisco Discovery Protocol” section on page 4-105.The following is the behavior assumed for various interfaces and access points: • CDP is disabled on radio interfaces on indoor (nonindoor mesh) access points. • Nonmesh access points have CDPs disabled on radio interfaces when they join the controller. The persistent CDP configuration is used for the APs that had CDP support in its previous image. • CDP is enabled on radio interfaces on indoor-mesh and mesh access points. • Mesh access points will have CDP enabled on their radio interfaces when they join the controller. The persistent CDP configuration is used for the access points that had CDP support in a previous image. The CDP configuration for radio interfaces is applicable only for mesh APs.
4-99Cisco Wireless LAN Controller Configuration GuideOL-21524-02Chapter 4 Configuring Controller SettingsConfiguring the Cisco Discovery ProtocolFigure 4-41 Sample Network Illustrating CDPUsing the GUI to Configure the Cisco Discovery ProtocolTo configure CDP using the controller GUI, follow these steps:Step 1 Choose Controller > CDP > Global Configuration to open the CDP > Global Configuration page (see Figure 4-42).
4-100Cisco Wireless LAN Controller Configuration GuideOL-21524-02Chapter 4 Configuring Controller SettingsConfiguring the Cisco Discovery ProtocolFigure 4-42 CDP > Global Configuration PageStep 2 Select the CDP Protocol Status check box to enable CDP on the controller or unselect it to disable this feature. The default value is selected.Note Enabling or disabling this feature is applicable to all controller ports.Step 3 From the CDP Advertisement Version drop-down list, choose v1 or v2 to specify the highest CDP version supported on the controller. The default value is v1.Step 4 In the Refresh-time Interval text box, enter the interval at which CDP messages are to be generated. The range is 5 to 254 seconds, and the default value is 60 seconds.Step 5 In the Holdtime text box, enter the amount of time to be advertised as the time-to-live value in generated CDP packets. The range is 10 to 255 seconds, and the default value is 180 seconds.Step 6 Click Apply to commit your changes.Step 7 Click Save Configuration to save your changes.Step 8 Perform one of the following: • To enable or disable CDP on a specific access point, follow these steps:a. Choose Wireless > Access Points > All APs to open the All APs page.b. Click the link for the desired access point.c. Choose the Advanced tab to open the All APs > Details for (Advanced) page (see Figure 4-43).
4-101Cisco Wireless LAN Controller Configuration GuideOL-21524-02Chapter 4 Configuring Controller SettingsConfiguring the Cisco Discovery ProtocolFigure 4-43 All APs > Details for (Advanced) Paged. Select the Cisco Discovery Protocol check box to enable CDP on this access point or unselect it to disable this feature. The default value is enabled.Note If CDP is disabled in Step 2, a message indicating that the Controller CDP is disabled appears. • Enable CDP for a specific Ethernet interface, radio, or slot as follows:a. Choose Wireless > Access Points > All APs to open the All APs page.b. Click the link for the desired access point.a. Choose the Interfaces tab and select the corresponding check boxes for the radios or slots from the CDP Configuration section.Note Configuration for radios is only applicable for mesh access points.b. Click Apply to commit your changes. • To enable or disable CDP on all access points currently associated to the controller, follow these steps:a. Choose Wireless > Access Points > Global Configuration to open the Global Configuration page.b. Select the CDP State check box to enable CDP on all access points associated to the controller or unselect it to disable CDP on all access points. The default value is selected. You can enable CDP on a specific Ethernet interface, radio, or slot by selecting the corresponding check box. This configuration will be applied to all access points associated with the controller.c. Click Apply to commit your changes.Step 9 Click Save Configuration to save your changes.Using the GUI to View Cisco Discovery Protocol InformationTo view CDP information using the controller GUI, follow these steps:
4-102Cisco Wireless LAN Controller Configuration GuideOL-21524-02Chapter 4 Configuring Controller SettingsConfiguring the Cisco Discovery ProtocolStep 1 Choose Monitor > CDP > Interface Neighbors to open the CDP > Interface Neighbors page appears (see Figure 4-44).Figure 4-44 CDP > Interface Neighbors PageThis page shows the following information: • The controller port on which the CDP packets were received • The name of each CDP neighbor • The IP address of each CDP neighbor • The port used by each CDP neighbor for transmitting CDP packets • The time left (in seconds) before each CDP neighbor entry expires • The functional capability of each CDP neighbor, defined as follows: R - Router, T - Trans Bridge, B - Source Route Bridge, S - Switch, H - Host, I - IGMP, r - Repeater, or M - Remotely Managed Device • The hardware platform of each CDP neighbor deviceStep 2 Click the name of the desired interface neighbor to see more detailed information about each interface’s CDP neighbor. The CDP > Interface Neighbors > Detail page appears (see Figure 4-45).
4-103Cisco Wireless LAN Controller Configuration GuideOL-21524-02Chapter 4 Configuring Controller SettingsConfiguring the Cisco Discovery ProtocolFigure 4-45 CDP > Interface Neighbors > Detail PageThis page shows the following information: • The controller port on which the CDP packets were received • The name of the CDP neighbor • The IP address of the CDP neighbor • The port used by the CDP neighbor for transmitting CDP packets • The CDP version being advertised (v1 or v2) • The time left (in seconds) before the CDP neighbor entry expires • The functional capability of the CDP neighbor, defined as follows: Router, Trans Bridge, Source Route Bridge, Switch, Host, IGMP, Repeater, or Remotely Managed Device • The hardware platform of the CDP neighbor device • The software running on the CDP neighborStep 3 Choose AP Neighbors to see a list of CDP neighbors for all access points connected to the controller. The CDP AP Neighbors page appears (see Figure 4-46).Figure 4-46 CDP AP Neighbors PageStep 4 Click the CDP Neighbors link for the desired access point to see a list of CDP neighbors for a specific access point. The CDP > AP Neighbors page appears (see Figure 4-47).
4-104Cisco Wireless LAN Controller Configuration GuideOL-21524-02Chapter 4 Configuring Controller SettingsConfiguring the Cisco Discovery ProtocolFigure 4-47 CDP > AP Neighbors PageThis page shows the following information: • The name of each access point • The IP address of each access point • The name of each CDP neighbor • The IP address of each CDP neighbor • The port used by each CDP neighbor • The CDP version being advertised (v1 or v2)Step 5 Click the name of the desired access point to see detailed information about an access point’s CDP neighbors. The CDP > AP Neighbors > Detail page appears (see Figure 4-48).Figure 4-48 CDP > AP Neighbors > Detail PageThis page shows the following information: • The name of the access point • The MAC address of the access point’s radio • The IP address of the access point • The interface on which the CDP packets were received • The name of the CDP neighbor • The IP address of the CDP neighbor • The port used by the CDP neighbor
4-105Cisco Wireless LAN Controller Configuration GuideOL-21524-02Chapter 4 Configuring Controller SettingsConfiguring the Cisco Discovery Protocol • The CDP version being advertised (v1 or v2) • The time left (in seconds) before the CDP neighbor entry expires • The functional capability of the CDP neighbor, defined as follows: R - Router, T - Trans Bridge, B - Source Route Bridge, S - Switch, H - Host, I - IGMP, r - Repeater, or M - Remotely Managed Device • The hardware platform of the CDP neighbor device • The software running on the CDP neighborStep 6 Choose Traffic Metrics to see CDP traffic information. The CDP > Traffic Metrics page appears (see Figure 4-49).Figure 4-49 CDP > Traffic Metrics PageThis page shows the following information: • The number of CDP packets received by the controller • The number of CDP packets sent from the controller • The number of packets that experienced a checksum error • The number of packets dropped due to insufficient memory • The number of invalid packetsUsing the CLI to Configure the Cisco Discovery ProtocolTo configure CDP using the controller CLI, follow these steps:Step 1 Enable or disable CDP on the controller by entering this command:config cdp {enable | disable}CDP is enabled by default.Step 2 Specify the interval at which CDP messages are to be generated by entering this command:config cdp timer secondsThe range is 5 to 254 seconds, and the default value is 60 seconds.Step 3 Specify the amount of time to be advertised as the time-to-live value in generated CDP packets by entering this command:config cdp holdtime seconds
4-106Cisco Wireless LAN Controller Configuration GuideOL-21524-02Chapter 4 Configuring Controller SettingsConfiguring the Cisco Discovery ProtocolThe range is 10 to 255 seconds, and the default value is 180 seconds.Step 4 Specify the highest CDP version supported on the controller by entering this command:config cdp advertise {v1 | v2}The default value is v1.Step 5 Enable or disable CDP on all access points that are joined to the controller by entering the config ap cdp {enable | disable} all command.The config ap cdp disable all command disables CDP on all access points that are joined to the controller and all access points that join in the future. CDP remains disabled on both current and future access points even after the controller or access point reboots. To enable CDP, enter the config ap cdp enable all command.Note After you enable CDP on all access points joined to the controller, you may disable and then reenable CDP on individual access points using the command in Step 6. After you disable CDP on all access points joined to the controller, you may not enable and then disable CDP on individual access points.Step 6 Enable or disable CDP on a specific access point by entering this command:config ap cdp {enable | disable} Cisco_APStep 7 Configure CDP on a specific or all access points for a specific interface by entering this command:config ap cdp {ethernet | radio} interface_number slot_id {enable | disable} {all | Cisco_AP}Note When you use the config ap cdp command to configure CDP on radio interfaces, a warning message appears indicating that the configuration is applicable only for mesh access points.Step 8 Save your changes by entering this command:save configUsing the CLI to View Cisco Discovery Protocol InformationTo obtain information about CDP neighbors on the controller using the controller CLI, follow these steps:Step 1 See the status of CDP and to view CDP protocol information by entering this command:show cdpStep 2 See a list of all CDP neighbors on all interfaces by entering this command:show cdp neighbors [detail]The optional detail command provides detailed information for the controller’s CDP neighbors.Note This command shows only the CDP neighbors of the controller. It does not show the CDP neighbors of the controller’s associated access points. Additional commands are provided below to show the list of CDP neighbors per access point.
4-107Cisco Wireless LAN Controller Configuration GuideOL-21524-02Chapter 4 Configuring Controller SettingsConfiguring the Cisco Discovery ProtocolStep 3 See all CDP entries in the database by entering this command:show cdp entry allStep 4 See CDP traffic information on a given port (for example, packets sent and received, CRC errors, and so on) by entering this command:show cdp trafficStep 5 See the CDP status for a specific access point by entering this command:show ap cdp ap-name Cisco_APStep 6 See the CDP status for all access points that are connected to the controller by entering this command:show ap cdp allStep 7 See a list of all CDP neighbors for a specific access point by entering these commands: • show ap cdp neighbors ap-name Cisco_AP • show ap cdp neighbors detail Cisco_APNote The access point sends CDP neighbor information to the controller only when the information changes.Step 8 See a list of all CDP neighbors for all access points connected to the controller by entering these commands: • show ap cdp neighbors all • show ap cdp neighbors detail allInformation similar to the following appears when you enter the show ap cdp neighbors all command:AP Name AP IP Neighbor Name Neighbor IP Neighbor Port-------- -------- ------------- ----------- ------------- AP0013.601c.0a0 10.76.108.123 6500-1 10.76.108.207 GigabitEthernet1/26AP0013.601c.0b0 10.76.108.111 6500-1 10.76.108.207 GigabitEthernet1/27AP0013.601c.0c0 10.76.108.125 6500-1 10.76.108.207 GigabitEthernet1/28 Information similar to the following appears when you enter the show ap cdp neighbors detail all command:AP Name: AP0013.601c.0a0AP IP Address: 10.76.108.125----------------------------------Device ID: 6500-1Entry address(es): 10.76.108.207Platform: cisco WS-C6506-E, Capabilities: Router Switch IGMP Interface: Port - 1, Port ID (outgoing port): GigabitEthernet1/26Holdtime: 157 sec Version:Cisco Internetwork Operating System Software IOS (tm) s72033_rp Software (s72033_rp-PSV-M), Version 12.2(18)SXD5, RELEASE SOFTWARE (fc3) Technical Support: http://www.cisco.com/techsupport Copyright (c) 1986-2005 by cisco Systems, Inc. Compiled Fri 13-Ma Note The access point sends CDP neighbor information to the controller only when the information changes.
4-108Cisco Wireless LAN Controller Configuration GuideOL-21524-02Chapter 4 Configuring Controller SettingsConfiguring Authentication for the Controller and NTP ServerTo obtain CDP debug information for the controller using the controller CLI, follow these steps:Step 1 Obtain debug information related to CDP packets by entering by entering this command:debug cdp packetsStep 2 Obtain debug information related to CDP events by entering this command:debug cdp eventsConfiguring Authentication for the Controller and NTP ServerStarting in release 7.0.116.0, the controller software is now compliant with RFC 1305. As per this requirement, controllers must synhronize time with an NTP server by authentication. By default, an MD5 checksum is used.Using the GUI to Configure the NTP Server for AuthenticationTo configure NTP Server Authentication using the controller GUI, follow these steps:Step 1 Choose Controller > NTP > Severs to open the NTP Severs page.Step 2 Click New to add a new NTP Server.Step 3 In the Server Index (Priority) text box, enter the NTP server index. The controller tries Index 1 first, then Index 2 through 3, in a descending order. Set this to 1 if your network is using only one NTP server.Step 4 Enter the server IP address in the Server IP Address field.Step 5 Select the Enable NTP Authentication check box to enable NTP Authentication.Step 6 Enter the Key index.Step 7 Click Apply.Using the CLI to Configure the NTP Server for AuthenticationTo configure NTP server authentication using the CLI, use the following commands: • config time ntp auth enable server-index key-index—Enables NTP authentication on a given NTP server. • config time ntp key-auth addkey-index md5 key-format key—Adds an authentication key. By default MD5 is used. The key format can be "ascii" or "hex". • config time ntp key-auth delete key-index—Deletes authentication keys. • config time ntp auth disable server-index—Disables NTP authentication. • show ntp-keys—Displays the NTP authentication related parameter.
4-109Cisco Wireless LAN Controller Configuration GuideOL-21524-02Chapter 4 Configuring Controller SettingsConfiguring RFID Tag TrackingConfiguring RFID Tag TrackingThe controller enables you to configure radio-frequency identification (RFID) tag tracking. RFID tags are small wireless devices that are affixed to assets for real-time location tracking. They operate by advertising their location using special 802.11 packets, which are processed by access points, the controller, and the location appliance. To know more about the tags supported by controller, see http://www.cisco.com/web/partners/pr46/pr147/ccx_wifi_tags.html. See Table 4-4 for details. The location appliance receives telemetry and chokepoint information from tags that are compliant with this CCX specification.Note The Network Mobility Services Protocol (NMSP) runs on location appliance software release 3.0 or later releases. In order for NMSP to function properly, the TCP port (16113) over which the controller and location appliance communicate must be open (not blocked) on any firewall that exists between these two devices. See the Cisco Location Appliance Configuration Guide for additional information on NMSP and RFID tags.The Cisco-approved tags support these capabilities: • Information notifications—Enable you to view vendor-specific and emergency information. • Information polling—Enables you to monitor battery status and telemetry data. Many telemetry data types provide support for sensory networks and a large range of applications for RFID tags. • Measurement notifications—Enable you to deploy chokepoints at strategic points within your buildings or campuses. Whenever an RFID tag moves to within a defined proximity of a chokepoint, the tag begins transmitting packets that advertise its location in relation to the chokepoint.Ta b l e 4-4 Cisco Compatible Extensions for RFID Tags SummaryPartners AeroScout WhereNet Pango (InnerWireless)Product Name T2 T3 Wheretag IV V3TelemetryTemperature X X — XPressure — — — —Humidity — — — —Status — — — —Fuel — — — —Quantity — — — —Distance — — — —Motion Detection X X — XNumber of Panic Buttons1 2 0 1Tampering X X XBattery Information X X X XMultiple-Frequency Tags11. For chokepoint systems, note that the tag can work only with chokepoints coming from the same vendor.X X X
4-110Cisco Wireless LAN Controller Configuration GuideOL-21524-02Chapter 4 Configuring Controller SettingsConfiguring RFID Tag TrackingThe number of tags supported varies depending on controller platform. Table 4-5 lists the number of tags supported per controller.You can configure and view RFID tag tracking information through the controller CLI.Using the CLI to Configure RFID Tag TrackingTo configure RFID tag tracking parameters using the controller CLI, follow these steps:Step 1 Enable or disable RFID tag tracking by entering this command:config rfid status {enable | disable}The default value is enabled.Step 2 Specify a static timeout value (between 60 and 7200 seconds) by entering this command:config rfid timeout secondsThe static timeout value is the amount of time that the controller maintains tags before expiring them. For example, if a tag is configured to beacon every 30 seconds, we recommend that you set the timeout value to 90 seconds (approximately three times the beacon value). The default value is 1200 seconds.Step 3 Enable or disable RFID tag mobility for specific tags by entering these commands: • config rfid mobility vendor_name enable—Enables client mobility for a specific vendor’s tags. When you enter this command, tags are unable to obtain a DHCP address for client mode when attempting to select and/or download a configuration. • config rfid mobility vendor_name disable—Disables client mobility for a specific vendor’s tags. When you enter this command, tags can obtain a DHCP address. If a tag roams from one subnet to another, it obtains a new address rather than retaining the anchor state.Note These commands can be used only for Pango tags. Therefore, the only valid entry for vendor_name is “pango” in all lowercase letters.Ta b l e 4-5 RFID Tags Supported per ControllerController Number of RFID Tags Supported5508 2500Cisco WiSM 50004404 25004402 1250Catalyst 3750G Integrated Wireless LAN Controller Switch12502106 500Controller Network Module within the Cisco 28/37/38xx Series Integrated Services Routers5002500 500
4-111Cisco Wireless LAN Controller Configuration GuideOL-21524-02Chapter 4 Configuring Controller SettingsConfiguring RFID Tag TrackingUsing the CLI to View RFID Tag Tracking InformationTo view RFID tag tracking information using the controller CLI, follow these steps:Step 1 See the current configuration for RFID tag tracking by entering this command:show rfid config Information similar to the following appears:RFID Tag data Collection......................... EnabledRFID timeout..................................... 1200 secondsRFID mobility................................. Oui:00:14:7e : Vendor:pango State:DisabledStep 2 See detailed information for a specific RFID tag by entering this command:show rfid detail mac_addresswhere mac_address is the tag’s MAC address.Information similar to the following appears:RFID address..................................... 00:12:b8:00:20:52Vendor........................................... G2Last Heard....................................... 51 seconds agoPackets Received................................. 2Bytes Received................................... 324Cisco Type.......................................Content Header=================Version.......................................... 1Tx Power......................................... 12 dBmChannel.......................................... 1Reg Class........................................ 12Burst Length..................................... 1CCX Payload===========Last Sequence Control............................ 0Payload length................................... 127Payload Data Hex Dump 01 09 00 00 00 00 0b 85 52 52 52 02 07 4b ff ff7f ff ff ff 03 14 00 12 7b 10 48 53 c1 f7 51 4b50 ba 5b 97 27 80 00 67 00 01 03 05 01 42 34 0000 03 05 02 42 5c 00 00 03 05 03 42 82 00 00 0305 04 42 96 00 00 03 05 05 00 00 00 55 03 05 0642 be 00 00 03 02 07 05 03 12 08 10 00 01 02 0304 05 06 07 08 09 0a 0b 0c 0d 0e 0f 03 0d 09 0308 05 07 a8 02 00 10 00 23 b2 4e 03 02 0a 03 Nearby AP Statistics: lap1242-2(slot 0, chan 1) 50 seconds ag.... -76 dBm lap1242(slot 0, chan 1) 50 seconds ago..... -65 dBmStep 3 See a list of all RFID tags currently connected to the controller by entering this command:show rfid summary Information similar to the following appears:Total Number of RFID : 24----------------- -------- ------------------ ------ ---------------------
4-112Cisco Wireless LAN Controller Configuration GuideOL-21524-02Chapter 4 Configuring Controller SettingsConfiguring RFID Tag Tracking RFID ID VENDOR Closest AP RSSI Time Since Last Heard----------------- -------- ------------------ ------ ---------------------00:04:f1:00:00:03 Wherenet HReap -70 151 seconds ago00:04:f1:00:00:05 Wherenet HReap -66 251 seconds ago00:0c:cc:5b:f8:1e Aerosct HReap -40 5 seconds ago00:0c:cc:5c:05:10 Aerosct HReap -68 25 seconds ago00:0c:cc:5c:06:69 Aerosct HReap -54 7 seconds ago00:0c:cc:5c:06:6b Aerosct HReap -68 245 seconds ago00:0c:cc:5c:06:b5 Aerosct cisco1242 -67 70 seconds ago00:0c:cc:5c:5a:2b Aerosct cisco1242 -68 31 seconds ago00:0c:cc:5c:87:34 Aerosct HReap -40 5 seconds ago00:14:7e:00:05:4d Pango cisco1242 -66 298 seconds agoStep 4 See a list of RFID tags that are associated to the controller as clients by entering this command:show rfid client When the RFID tag is in client mode, information similar to the following appears:------------------ -------- --------- ----------------- ------ ---------------- Heard RFID Mac VENDOR Sec Ago Associated AP Chnl Client State ------------------ -------- --------- ----------------- ------ ----------------00:14:7e:00:0b:b1 Pango 35 AP0019.e75c.fef4 1 Probing When the RFID tag is not in client mode, the above text boxes are blank.Using the CLI to Debug RFID Tag Tracking IssuesIf you experience any problems with RFID tag tracking, use these debug commands. • Configure MAC address debugging by entering this command:debug mac addr mac_addressNote We recommend that you perform the debugging on a per-tag basis. If you enable debugging for all of the tags, the console or Telnet screen is inundated with messages. • Enable or disable debugging for the 802.11 RFID tag module by entering this command:debug dot11 rfid {enable | disable} • Enable or disable RFID debug options by entering this command:debug rfid {all | detail | error | nmsp | receive} {enable | disable}where –all configures debugging of all RFID messages. –detail configures debugging of RFID detailed messages. –error configures debugging of RFID error messages. –nmsp configures debugging of RFID NMSP messages. –receive configures debugging of incoming RFID tag messages.
4-113Cisco Wireless LAN Controller Configuration GuideOL-21524-02Chapter 4 Configuring Controller SettingsConfiguring and Viewing Location SettingsConfiguring and Viewing Location SettingsThis section provides instructions for configuring and viewing location settings from the controller CLI.Note Access points in monitor mode should not be used for location purposes.Installing the Location Appliance CertificateA self-signed certificate (SSC) is required on the location appliance. This certificate, which is comprised of the location appliance MAC address and a 20-byte key hash, must be present on the controller. Otherwise, the controller cannot authenticate the location appliance, and they can never establish a connection. WCS usually pushes the certificate to the controller automatically, but you can install the certificate on the controller using the controller CLI if necessary (for example, if the controller is not connected to WCS or if an error or certificate mismatch occurs on WCS).Note If an error occurs on WCS and prevents the location appliance certificate from being pushed to the controller, make sure that the time zone has been synchronized on the controller and the location appliance before following this procedure. Follow the instructions in the “Viewing Location Settings” section on page 4-116 to do so.To install the location appliance certificate on the controller using the controller CLI, follow these steps:Step 1 Obtain the key hash value of the location appliance certificate by entering this command:debug pm pki enableInformation similar to the following appears:Thu Oct 11 08:52:26 2007: sshpmGetIssuerHandles: Calculate SHA1 hash on Public Key DataThu Oct 11 08:52:26 2007: sshpmGetIssuerHandles: Key Data 30820122 300d0609 2a864886 f70d0101Thu Oct 11 08:52:26 2007: sshpmGetIssuerHandles: Key Data 01050003 82010f00 3082010a 02820101Thu Oct 11 08:52:26 2007: sshpmGetIssuerHandles: Key Data 009a98b5 d2b7c77b 036cdb87 5bd20e5aThu Oct 11 08:52:26 2007: sshpmGetIssuerHandles: Key Data 894c66f4 df1cbcfb fe2fcf01 09b723aaThu Oct 11 08:52:26 2007: sshpmGetIssuerHandles: Key Data 5c0917f1 ec1d5061 2d386351 573f2c5eThu Oct 11 08:52:30 2007: sshpmGetIssuerHandles: Key Data b9020301 0001Thu Oct 11 08:52:30 2007: sshpmGetIssuerHandles: SSC Key Hash is 4869b32638c00ffca88abe9b1a8e0525b9344b8b Step 2 Install the location appliance certificate on the controller by entering this command:config auth-list add lbs-ssc lbs_mac lbs_keywhere • lbs_mac is the MAC address of the location appliance. • lbs_key is the 20-byte key hash value of the certificate.Step 3 Save your changes by entering this command:save config
4-114Cisco Wireless LAN Controller Configuration GuideOL-21524-02Chapter 4 Configuring Controller SettingsConfiguring and Viewing Location SettingsStep 4 Verify that the location appliance certificate is installed on the controller by entering this command:show auth-listInformation similar to the following appears:Authorize APs against AAA ....................... disabledAllow APs with Self-Signed Certificate (SSC) .... disabledMac Addr Cert Type Key Hash----------------------- ---------- --------------------------------------------00:16:36:91:9a:27 LBS-SSC 593f34e7cb151997a28cc7da2a6cac040b329636 Synchronizing the Controller and Location ApplianceFor controller software release 4.2 or later releases, if a location appliance (release 3.1 or later releases) is installed on your network, the time zone must be set on the controller to ensure proper synchronization between the two systems. Also, the times must be synchronized on the two devices. We recommend that you set the time even for networks that do not have location appliances. See the “Configuring 802.11 Bands” section on page 4-29 for instructions on setting the time and date on the controller.Note The time zone can be different for the controller and the location appliance, but the time zone delta must be configured accordingly, based on GMT.Configuring Location SettingsThe controller determines the location of client devices by gathering received signal strength indication (RSSI) measurements from access points all around the client of interest. The controller can obtain location reports from up to 16 access points for clients, RFID tags, and rogue access points.Improve location accuracy by configuring the path loss measurement (S60) request for normal clients or calibrating clients by entering this command:config location plm ?where ? is one of the following: • client {enable | disable} burst_interval—Enables or disables the path loss measurement request for normal, noncalibrating clients. The valid range for the burst_interval parameter is 1 to 3600 seconds, and the default value is 60 seconds. • calibrating {enable | disable} {uniband | multiband}—Enables or disables the path loss measurement request for calibrating clients on the associated 802.11a or 802.11b/g radio or on the associated 802.11a/b/g radio.If a client does not send probes often or sends them only on a few channels, its location cannot be updated or cannot be updated accurately. The config location plm command forces clients to send more packets on all channels. When a CCXv4 (or higher) client associates, the controller sends it a path loss measurement request, which instructs the client to transmit on the bands and channels that the access points are on (typically, channels 1, 6, and 11 for 2.4-GHz-only access points) at a configurable interval (such as 60 seconds) indefinitely.These four additional location CLI commands are available; however, they are set to optimal default values, so we do not recommend that you use or modify them:
4-115Cisco Wireless LAN Controller Configuration GuideOL-21524-02Chapter 4 Configuring Controller SettingsConfiguring and Viewing Location Settings • Configure the RSSI timeout value for various devices by entering this command:config location expiry ?where? is one of the following: –client timeout—Configures the RSSI timeout value for clients. The valid range for the timeout parameter is 5 to 3600 seconds, and the default value is 5 seconds. –calibrating-client timeout—Configures the RSSI timeout value for calibrating clients. The valid range for the timeout parameter is 0 to 3600 seconds, and the default value is 5 seconds. –tags timeout—Configures the RSSI timeout value for RFID tags. The valid range for the timeout parameter is 5 to 300 seconds, and the default value is 5 seconds. –rogue-aps timeout—Configures the RSSI timeout value for rogue access points. The valid range for the timeout parameter is 5 to 3600 seconds, and the default value is 5 seconds.Ensuring that recent, strong RSSIs are retained by the CPU is critical to location accuracy. The config location expiry command enables you to specify the length of time after which old RSSI averages expire.Note We recommend that you do not use or modify the config location expiry command. • Configure the RSSI half life for various devices by entering this command:config location rssi-half-life ?where ? is one of the following: –client half_life—Configures the RSSI half life for clients. The valid range for the half_life parameter is 0, 1, 2, 5, 10, 20, 30, 60, 90, 120, 180, or 300 seconds, and the default value is 0 seconds. –calibrating-client half_life—Configures the RSSI half life for calibrating clients. The valid range for the half_life parameter is 0, 1, 2, 5, 10, 20, 30, 60, 90, 120, 180, or 300 seconds, and the default value is 0 seconds. –tags half_life—Configures the RSSI half life for RFID tags. The valid range for the half_life parameter is 0, 1, 2, 5, 10, 20, 30, 60, 90, 120, 180, or 300 seconds, and the default value is 0 seconds. –rogue-aps half_life—Configures the RSSI half life for rogue access points. The valid range for the half_life parameter is 0, 1, 2, 5, 10, 20, 30, 60, 90, 120, 180, or 300 seconds, and the default value is 0 seconds.Some client devices transmit at reduced power immediately after changing channels, and RF is variable, so RSSI values might vary considerably from packet to packet. The config location rssi-half-life command increases accuracy by averaging nonuniformly arriving data using a configurable forget period (or half life).Note We recommend that you do not use or modify the config location rssi-half-life command. • Configure the NMSP notification threshold for RSSI measurements by entering this command:config location notify-threshold ?where ? is one of the following: –client threshold—Configures the NMSP notification threshold (in dB) for clients and rogue clients. The valid range for the threshold parameter is 0 to 10 dB, and the default value is 0 dB.
4-116Cisco Wireless LAN Controller Configuration GuideOL-21524-02Chapter 4 Configuring Controller SettingsConfiguring and Viewing Location Settings –tags threshold—Configures the NMSP notification threshold (in dB) for RFID tags. The valid range for the threshold parameter is 0 to 10 dB, and the default value is 0 dB. –rogue-aps threshold—Configures the NMSP notification threshold (in dB) for rogue access points. The valid range for the threshold parameter is 0 to 10 dB, and the default value is 0 dB.Note We recommend that you do not use or modify the config location notify-threshold command. • Configure the algorithm used to average RSSI and signal-to-noise ratio (SNR) values by entering this command:config location algorithm ?where ? is one of the following: –simple—Specifies a faster algorithm that requires low CPU overhead but provides less accuracy. –rssi-average—Specifies a more accurate algorithm but requires more CPU overhead.Note We recommend that you do not use or modify the config location algorithm command.Viewing Location SettingsTo view location information, use these CLI commands: • View the current location configuration values by entering this command:show location summaryInformation similar to the following appears:Location Summary Algorithm used: AverageClientRSSI expiry timeout: 5 secHalf life: 0 secNotify Threshold: 0 dbCalibrating ClientRSSI expiry timeout: 5 secHalf life: 0 secRogue APRSSI expiry timeout: 5 secHalf life: 0 secNotify Threshold: 0 dbRFID TagRSSI expiry timeout: 5 secHalf life: 0 secNotify Threshold: 0 db • See the RSSI table for a particular client by entering this command:show location detail client_mac_addrInformation similar to the following appears:
4-117Cisco Wireless LAN Controller Configuration GuideOL-21524-02Chapter 4 Configuring Controller SettingsConfiguring and Viewing Location Settings... [11] AP 00:00:00:00:00:00 : Slot 0 inUse 0, expired 0, Timestamp (antenna-A 0) (antenna-B 0), band 0 rssi (antenna-A 0) (antenna-B 0), snr 0, acceptable 0[12] AP 00:00:00:00:00:00 : Slot 0 inUse 0, expired 0, Timestamp (antenna-A 0) (antenna-B 0), band 0 rssi (antenna-A 0) (antenna-B 0), snr 0, acceptable 0[13] AP 00:00:00:00:00:00 : Slot 0 inUse 0, expired 0, Timestamp (antenna-A 0) (antenna-B 0), band 0 rssi (antenna-A -1) (antenna-B 0), snr 0, acceptable 0[14] AP 00:00:00:00:00:00 : Slot 0 inUse 0, expired 0, Timestamp (antenna-A 0) (antenna-B 0), band 0 rssi (antenna-A 0) (antenna-B 0), snr 0, acceptable 0[15] AP 00:00:00:00:00:00 : Slot 0 inUse 0, expired 0, Timestamp (antenna-A 0) (antenna-B 0), band 0 rssi (antenna-A 0) (antenna-B 0), snr 0, acceptable 0 • See the location-based RFID statistics by entering this command:show location statistics rfidInformation similar to the following appears:RFID Statistics Database Full : 0 Failed Delete: 0Null Bufhandle: 0 Bad Packet: 0Bad LWAPP Data: 0 Bad LWAPP Encap: 0Off Channel: 0 Bad CCX Version: 0Bad AP Info : 0Above Max RSSI: 0 Below Max RSSI: 0Invalid RSSI: 0 Add RSSI Failed: 0Oldest Expired RSSI: 0 Smallest Overwrite: 0 • Clear the location-based RFID statistics by entering this command:clear location statistics rfid • Clear a specific RFID tag or all of the RFID tags in the entire database by entering this command:clear location rfid {mac_address | all} • See whether location presence (S69) is supported on a client by entering this command:show client detail client_macWhen location presence is supported by a client and enabled on a location appliance, the location appliance can provide the client with its location upon request. Location presence is enabled automatically on CCXv5 clients.Information similar to the following appears:Client MAC Address............................... 00:40:96:b2:a3:44Client Username ................................. N/AAP MAC Address................................... 00:18:74:c7:c0:90Client State..................................... AssociatedWireless LAN Id.................................. 1BSSID............................................ 00:18:74:c7:c0:9fChannel.......................................... 56IP Address....................................... 192.168.10.28Association Id................................... 1Authentication Algorithm......................... Open SystemReason Code...................................... 0Status Code...................................... 0Session Timeout.................................. 0Client CCX version............................... 5Client E2E version............................... No E2E supportDiagnostics Capability........................... SupportedS69 Capability................................... SupportedMirroring........................................ DisabledQoS Level........................................ Silver...
4-118Cisco Wireless LAN Controller Configuration GuideOL-21524-02Chapter 4 Configuring Controller SettingsConfiguring and Viewing Location SettingsNote See the Cisco Wireless Control System Configuration Guide or the Cisco Location Appliance Configuration Guide for instructions on enabling location presence on a location appliance.Modifying the NMSP Notification Interval for Clients, RFID Tags, and RoguesThe Network Mobility Services Protocol (NMSP) manages communication between the location appliance and the controller for incoming and outgoing traffic. If your application requires more frequent location updates, you can modify the NMSP notification interval (to a value between 1 and 180 seconds) for clients, active RFID tags, and rogue access points and clients.Note The TCP port (16113) that the controller and location appliance communicate over must be open (not blocked) on any firewall that exists between the controller and the location appliance for NMSP to function.To modify the NMSP notification interval value on the controller using the controller CLI, follow these steps:Step 1 Set the NMSP notification interval value for clients, RFID tags, and rogue clients and access points by entering these commands, where interval is a value between 1 and 180 seconds: • config nmsp notification interval rssi clients interval • config nmsp notification interval rssi rfid interval • config nmsp notification interval rssi rogues intervalStep 2 See the NMSP notification intervals by entering this command:show nmsp notification intervalInformation similar to the following appears:NMSP Notification Interval SummaryRSSI Interval: Client.......................................... 2 sec RFID............................................ 0 sec Rogue AP........................................ 2 sec Rogue Client.................................... 2 secViewing NMSP SettingsTo view NMSP information, use these CLI commands: • See the status of active NMSP connections by entering this command:show nmsp statusInformation similar to the following appears:
4-119Cisco Wireless LAN Controller Configuration GuideOL-21524-02Chapter 4 Configuring Controller SettingsConfiguring and Viewing Location SettingsMSE IP Address Tx Echo Resp Rx Echo Req Tx Data Rx Data -------------- ------------ ----------- ------- ------- 171.71.132.107 39046 39046 103742 1 • See the NMSP capabilities by entering this command:show nmsp capabilityInformation similar to the following appears:Service Subservice------- ----------RSSI Mobile Station, Tags, Rogue,Info Mobile Station, Rogue,Statistics Mobile Station, Tags,IDS Services WIPS • See the NMSP counters by entering this command:show nmsp statistics {summary | connection}where –summary shows the common NMSP counters. –connection shows the connection-specific NMSP counters.Information similar to the following appears for the show nmsp statistics summary command:NMSP Global CountersClient Measure Send Fail......................... 0Send RSSI with no entry.......................... 0APP msg too big.................................. 0Failed Select on Accept Socket................... 0Failed SSL write................................. 0Partial SSL write................................ 0SSL write returned zero.......................... 0SSL write attempts to want read.................. 0SSL write attempts to want write................. 0SSL write got default error...................... 0SSL write max data length sent................... 0SSL write max attempts to write in loop.......... 0SSL read returned zero........................... 0SSL read attempts to want read................... 0SSL read attempts to want write.................. 0SSL read got default error....................... 0Failed SSL read - Con Rx buf freed............... 0Failed SSL read - Con/SSL freed.................. 0Max records read before exiting SSL read......... 0Normal Prio Tx Q full............................ 0Highest Prio Tx Q count.......................... 0Normal Prio Tx Q count........................... 0Messages sent by APPs to Highest Prio TxQ........ 0Max Measure Notify Msg........................... 0Max Info Notify Msg.............................. 0Max Highest Prio Tx Q Size....................... 0Max Normal Prio Tx Q Size........................ 0Max Rx Size...................................... 1Max Info Notify Q Size........................... 0Max Client Info Notify Delay..................... 0Max Rogue AP Info Notify Delay................... 0Max Rogue Client Info Notify Delay............... 0Max Client Measure Notify Delay.................. 0Max Tag Measure Notify Delay..................... 0Max Rogue AP Measure Notify Delay................ 0
4-120Cisco Wireless LAN Controller Configuration GuideOL-21524-02Chapter 4 Configuring Controller SettingsConfiguring and Viewing Location SettingsMax Rogue Client Measure Notify Delay............ 0Max Client Stats Notify Delay.................... 0Max Client Stats Notify Delay.................... 0RFID Measurement Periodic........................ 0RFID Measurement Immediate....................... 0SSL Handshake failed............................. 0NMSP Rx detected con failure..................... 0NMSP Tx detected con failure..................... 0NMSP Tx buf size exceeded........................ 0Reconnect Before Conn Timeout................. 0 Information similar to the following appears for each active connection when you enter the show nmsp statistics connection command:NMSP Connection CountersMSE IP: 171.71.132.107 Connection status: UP Tx message count Rx message count ---------------- ---------------- WLC Capability: 1 MSE Capability: 0 Service Subscr Rsp: 1 Service Subscr Req: 1 Measure Rsp: 0 Measure Req: 0 Measure Notify: 0 Info Rsp: 0 Info Req: 0 Info Notify: 0 Stats Rsp: 0 Stats Req: 0 Stats Notify: 0 Loc Req: 0 Loc Rsp: 0 Loc Subscr Req: 0 Loc Subscr Rsp: 0 Loc Notify: 0 Loc Unsubscr Req: 0 Loc Unsubscr Rsp: 0 AP Monitor Rsp: 0 AP Monitor Req: 0 AP Monitor Notify: 64677 IDS Get Rsp: 0 IDS Get Req: 0 IDS Notif: 0 IDS Set Rsp: 0 IDS Set Req: 0 • See the mobility services that are active on the controller by entering this command:show nmsp subscription {summary | detail | detail ip_addr}where –summary shows all of the mobility services to which the controller is subscribed. –detail shows details for all of the mobility services to which the controller is subscribed. –detail ip_addr shows details only for the mobility services subscribed to by a specific IP address.Information similar to the following appears for the show nmsp subscription summary command:Mobility Services Subscribed: Server IP Services --------- -------- 1.4.93.31 RSSI, Info, Statistics Information similar to the following appears for the show nmsp subscription detail ip_addr command:Mobility Services Subscribed by 1.4.93.31 Services Sub-services-------- ------------
4-121Cisco Wireless LAN Controller Configuration GuideOL-21524-02Chapter 4 Configuring Controller SettingsConfiguring the Supervisor 720 to Support the WiSMRSSI Mobile Station, Tags, Info Mobile Station,Statistics Mobile Station, Tags, • Clear all NMSP statistics by entering this command:clear nmsp statisticsDebugging NMSP IssuesUse these CLI commands if you experience any problems with NMSP: • Configure NMSP debug options by entering this command:debug nmsp ? where ? is one of the following: –all {enable | disable}—Enables or disables debugging for all NMSP messages. –connection {enable | disable}—Enables or disables debugging for NMSP connection events. –detail {enable | disable}—Enables or disables debugging for NMSP detailed events. –error {enable | disable}—Enables or disables debugging for NMSP error messages. –event {enable | disable}—Enables or disables debugging for NMSP events. –message {tx | rx} {enable | disable}—Enables or disables debugging for NMSP transmit or receive messages. –packet {enable | disable}—Enables or disables debugging for NMSP packet events. • Enable or disable debugging for NMSP interface events by entering this command:debug dot11 nmsp {enable | disable} • Enable or disable debugging for IAPP NMSP events by entering this command:debug iapp nmsp {enable | disable} • Enable or disable debugging for RFID NMSP messages by entering this command:debug rfid nmsp {enable | disable} • Enable or disable debugging for access point monitor NMSP events by entering this command:debug service ap-monitor nmsp {enable | disable} • Enable or disable debugging for wIPS NMSP events by entering this command:debug wips nmsp {enable | disable}Configuring the Supervisor 720 to Support the WiSMWhen you install a WiSM in a Cisco Catalyst 6500 series switch or a Cisco 7600 series router, you must configure the Supervisor 720 to support the WiSM. When the supervisor detects the WiSM, the supervisor creates ten Gigabit Ethernet interfaces, ranging from Gigslot/1 to Gigslot/8. For example, if the WiSM is in slot 9, the supervisor creates interfaces Gig9/1 through Gig9/8. The first eight Gigabit Ethernet interfaces must be organized into two EtherChannel bundles of four interfaces each. The remaining two Gigabit Ethernet interfaces are used as service-port interfaces, one for each controller on the WiSM. You must manually create VLANs to communicate with the ports on the WiSM.
4-122Cisco Wireless LAN Controller Configuration GuideOL-21524-02Chapter 4 Configuring Controller SettingsConfiguring the Supervisor 720 to Support the WiSMNote The WiSM is supported on Cisco 7600 series routers running only Cisco IOS Release 12.2(18)SXF5.General WiSM GuidelinesFollow these guidelines when you add a WiSM to your network: • The switch or router ports leading to the controller service port are automatically configured and cannot be manually configured. • The switch or router ports leading to the controller data ports should be configured as edge ports to avoid sending unnecessary BPDUs. • The switch or router ports leading to the controller data ports should not be configured with any additional settings (such as port channel or SPAN destination) other than settings necessary for carrying data traffic to and from the controllers.Note See Chapter 3, “Configuring Ports and Interfaces,” for information on configuring the WiSM’s ports and interfaces.Configuring the SupervisorNote You must log into the switch or router CLI and begin in privileged EXEC mode.To configure the supervisor to support the WiSM, follow these steps:Command PurposeStep 1 configure terminal Enters global configuration mode.Step 2 interface vlan Creates a VLAN to communicate with the data ports on the WiSM and enters interface configuration mode.Step 3 ip address ip-address gateway Assigns an IP address and gateway to the VLAN.Step 4 ip helper-address ip-address Assigns a helper address to the VLAN.Step 5 end Returns to global configuration mode.Step 6 wism module module_number controller {1 | 2} allowed-vlan vlan_numberCreates Gigabit port-channel interfaces automatically for the specified WiSM controller and configure the port-channel interfaces as trunk ports. Also, specifies the VLAN that you created earlier as the allowed VLAN on the port-channel trunk. VLAN traffic is carried on the trunk between the WiSM controller and the supervisor.Note Services might be temporarily interrupted (for approximately two pings) after you enter this command.Step 7 wism module module_number controller {1 | 2} native-vlan vlan_numberFor the native VLAN on the ports, specifies the VLAN that you created earlier to communicate with the WiSM data ports.
4-123Cisco Wireless LAN Controller Configuration GuideOL-21524-02Chapter 4 Configuring Controller SettingsUsing the Wireless LAN Controller Network ModuleNote The commands used for communication between the Cisco WiSM, the Supervisor 720, and the 4404 controllers are documented in Configuring a Cisco Wireless Services Module and Wireless Control System at this URL: http://www.cisco.com/en/US/docs/wireless/technology/wism/technical/reference/appnote.html#wp39498Using the Wireless LAN Controller Network ModuleFollow these guidelines when using a wireless LAN controller network module (CNM) installed in a Cisco Integrated Services Router: • The CNM does not support IPsec. To use IPsec with the CNM, configure IPsec on the router in which the CNM is installed. Click this link to browse to IPsec configuration instructions for routers:http://www.cisco.com/en/US/tech/tk583/tk372/tech_configuration_guides_list.html • The CNM does not have a battery and cannot save a time setting. It must receive a time setting from an external NTP server when it powers up. When you install the module, the configuration wizard prompts you for NTP server information. • To access the CNM bootloader, we recommend that you reset the CNM from the router. If you reset the CNM from a CNM user interface, the router might reset the CNM while you are using the bootloader. When you reset the CNM from a CNM interface, you have 17 minutes to use the bootloader before the router automatically resets the CNM. The CNM bootloader does not run the Router Blade Configuration Protocol (RBCP), so the RBCP heartbeat running on the router times out after 17 minutes, triggering a reset of the CNM.If you reset the CNM from the router, the router stops the RBCP heartbeat exchange and does not restart it until the CNM boots up. To reset the CNM from the router, enter one of these commands on the router CLI:service-module wlan-controller 1/0 reset (for Fast Ethernet CNM versions)service-module integrated-service-engine 1/0 reset (for Gigabit Ethernet CNM versions) • Gigabit Ethernet versions of the Controller Network Module are supported on Cisco 28/37/38xx Series Integrated Services Routers running Cisco IOS Release 12.4(11)T2 or later.Step 8 interface vlan Creates a VLAN to communicate with the service ports on the WiSM.Step 9 ip address ip_address gateway Assigns an IP address and gateway to the VLAN.Step 10 end Returns to global configuration mode.Step 11 wism service-vlan vlan Configures the VLAN that you created in Steps 8 through Step 10 to communicate with the WiSM service ports.Step 12 end Returns to global configuration mode.Step 13 show wism status Verifies that the WiSM is operationalCommand Purpose
4-124Cisco Wireless LAN Controller Configuration GuideOL-21524-02Chapter 4 Configuring Controller SettingsResetting the Controller to Default SettingsResetting the Controller to Default SettingsIf you want to return the controller to its original configuration, you can use the controller GUI or CLI to reset the controller to factory-default settings.Using the GUI to Reset the Controller to Default SettingsTo return the controller to factory-default setting using the controller GUI, follow these steps:Step 1 Open your Internet browser.Step 2 Enter the controller IP address in the browser address line and press Enter. An Enter Network Password dialog box appears.Step 3 Enter your username in the User Name text box. The default username is admin.Step 4 Enter the wireless device password in the Password text box and press Enter. The default password is admin.Step 5 Choose Commands > Reset to Factory Default.Step 6 Click Reset.Step 7 When prompted, confirm the reset.Step 8 Reboot the controller without saving the configuration.Step 9 Use the configuration wizard to enter configuration settings. See the “Using the Configuration Wizard” section on page 2-1 for instructions.Using the CLI to Reset the Controller to Default SettingsTo return the controller to factory default settings using the controller CLI, follow these steps:Step 1 Enter the reset system command. At the prompt that asks whether you need to save changes to the configuration, enter N. The unit reboots.Step 2 When you are prompted for a username, enter the recover-config command to restore the factory-default configuration. The controller reboots and displays this message:Welcome to the Cisco WLAN Solution Wizard Configuration ToolStep 3 Use the configuration wizard to enter configuration settings. See the “Using the Configuration Wizard” section on page 2-1 for instructions.
CHAPTER5-1Cisco Wireless LAN Controller Configuration GuideOL-21524-025Configuring VideoStreamThis chapter describes how to configure Cisco VideoStream functionality on the controller. It contains these sections: • Overview of the VideoStream, page 5-1 • Guidelines for Configuring VideoStream on the Controller, page 5-1 • Configuring VideoStream, page 5-2Overview of the VideoStreamThe IEEE 802.11 wireless multicast delivery mechanism does not provide a reliable way to acknowledge lost or corrupted packets. As a result, if any multicast packet is lost in the air, it is not sent again which may cause an IP multicast stream unviewable. The VideoStream feature makes the IP multicast stream delivery reliable over the air, by converting the broadcast frame over the air to a unicast frame. Each VideoStream client acknowledges receiving a video IP multicast stream.Guidelines for Configuring VideoStream on the ControllerFollow these guidelines when configuring VideoStream on the controller: • The AP1100 and AP1200 do not support the reliable multicast feature. • Make sure that the multicast feature is enabled. We recommend configuring IP multicast on the controller with multicast-multicast mode. • Check for the IP address on the client machine. The machine should have an IP address from the respective VLAN. • If there is a mismatch in the version of code on your controller, upgrade the controller code to 7.0.98.0 or later. • Verify that the access points have joined the controllers. • Make sure that the clients are able to associate to the configured WLAN at 802.11n speed. • VideoStream is supported on the following access points: Cisco Aironet 3500, 1260, 1250, 1240AG, 1140, 1130AG, and 1040.
5-2Cisco Wireless LAN Controller Configuration GuideOL-21524-02Chapter 5 Configuring VideoStream Configuring VideoStreamConfiguring VideoStreamThis section describes how to configure VideoStream on the controller. This section contains the following topics: • Using the GUI to Configure the VideoStream on the Controller, page 5-2 • Using the CLI to Configure the VideoStream to the Controller, page 5-8Using the GUI to Configure the VideoStream on the ControllerTo configure the VideoStream on the controller using the controller GUI, follow these steps:Note To enable the multicast feature using the controller GUI, perform Step 1 through Step 8.Step 1 Choose WIRELESS > Media Stream > General to open the Media Stream > General page (see Figure 5-1).Step 2 Select the Multicast Direct Feature check box to enable the multicast direct feature. The default value is disabled.Note Enabling the Multicast Direct feature does not automatically reset the existing client state. The wireless clients must rejoin the multicast stream after enabling the Multicast Direct feature on the controller.Figure 5-1 Media Stream > General PageStep 3 Under the Session Message Config, select Session announcement State to enable the session announcement mechanism. If this feature is enabled, clients are informed each time a controller is not able to serve the multicast direct data to the client.
5-3Cisco Wireless LAN Controller Configuration GuideOL-21524-02Chapter 5 Configuring VideoStream Configuring VideoStreamStep 4 In the Session announcement URL text box, enter the URL where the client can find more information when an error occurs during the multicast media stream transmission.Step 5 In the Session announcement e-mail text box, enter the e-mail address of the person who can be contacted.Step 6 In the Session announcement Phone text box, enter the phone number of the person who can be contacted.Step 7 In the Session announcement Note text box, enter a reason as to why a particular client cannot be served with a multicast media.Step 8 Click Apply to commit your changes.Note To add a media stream using the controller GUI, perform Step 9 through Step 16.Step 9 Choose WIRELESS > Media Stream > Streams to open the Media Stream page (see Figure 5-2).Figure 5-2 Media Streams PageStep 10 Click Add New to configure a new media stream. The Media Stream > New page (see Figure 5-3) appears.
5-4Cisco Wireless LAN Controller Configuration GuideOL-21524-02Chapter 5 Configuring VideoStream Configuring VideoStreamFigure 5-3 Media Stream > New PageNote The Stream Name, Multicast Destination Start IP Address, and Multicast Destination End IP Address text boxes are mandatory. You must enter information in these text boxes.Step 11 In the Stream Name text box, enter the media stream name. The stream name can be up to 64 characters.Step 12 In the Multicast Destination Start IP Address text box, enter the start IP address of the multicast media stream.Step 13 In the Multicast Destination End IP Address text box, enter the end IP address of the multicast media stream.Step 14 In the Maximum Expected Bandwidth text box, enter the maximum expected bandwidth that you want to assign to the media stream. The values can range between 1 to 35000 kbps.Note We recommend that you use a template to add a media stream to the controller.Step 15 From the Select from Predefined Templates drop-down list under Resource Reservation Control (RRC) Parameters, choose one of the following options to specify the details about the resource reservation control: • Very Coarse (below 300 kbps) • Coarse (below 500 kbps) • Ordinary (below 750 kbps) • Low (below 1 Mbps) • Medium (below 3 Mbps) • High (below 5 Mbps)Note When you select a predefined template from the drop-down list, the following text boxes under the Resource Reservation Control (RRC) Parameters list their default values that are assigned with the template.
5-5Cisco Wireless LAN Controller Configuration GuideOL-21524-02Chapter 5 Configuring VideoStream Configuring VideoStream • Average Packet Size (100-1500 bytes)—Specifies the average packet size. The value can be in the range of 100 to 1500 bytes. The default value is 1200. • RRC Periodic update—Enables the RRC (Resource Reservation Control Check) Periodic update. By default, this option is enabled. RRC periodically updates the admission decision on the admitted stream according to the correct channel load. As a result, it may deny certain low priority admitted stream requests. • RRC Priority (1-8)—Specifies the priority bit set in the media stream. The priority can be any number between 1 and 8. The larger the value means the higher the priority is. For example, a priority of 1 is the lowest value and a value of 8 is the highest value. The default priority is 4. The low priority stream may be denied in the RRC periodic update. • Traffic Profile Violation—Specifies the action to perform in case of a violation after a re-RRC. Choose an action from the drop-down list. The possible values are as follows: –Drop —Specifies that a stream is dropped on periodic revaluation. –Fallback—Specifies that a stream is demoted to BestEffort class on periodic reevaluation.The default value is drop.Step 16 Click Apply to save the configuration changes.Note To enable the media stream using the controller GUI, perform Step 17 through Step 20.Note The media stream added needs to be enabled for multicast-direct.Step 17 Choose WLANs > WLAN ID to open the WLANs > Edit page.Step 18 Choose the QoS tab and select Gold (Video) from the Quality of Service (QoS) drop-down list.Step 19 Enable Multicast Direct.Step 20 Click Apply to save the configuration changes.Note To set the EDCA parameters to voice and video optimized using the controller GUI, perform Step 21 through Step 23.Note Setting the EDCA parameters to voice and video optimized is an optional procedure.Step 21 Choose WIRELESS > 802.11a/n or 802.11b/g/n > EDCA Parameters.Step 22 From the EDCA Profile drop-down list, choose Voice and Video Optimized option.Step 23 Click Apply to save the changes made.Note To enable the admission control on desired band for video using the controller GUI, perform Step 24 through Step 27.Note Enabling the admission control on the desired band for video is optional.
5-6Cisco Wireless LAN Controller Configuration GuideOL-21524-02Chapter 5 Configuring VideoStream Configuring VideoStreamNote Keep the voice bandwidth allocation to a minimum for better performance.Step 24 Choose WIRELESS > 802.11a/n or 802.11b/g/n > Media to open the 802.11a/n (5 GHZ) or 802.11b/g/n > Media page. Step 25 Choose the Video tab.Step 26 Select the Admission Control (ACM) check box to enable bandwidth-based CAC for this radio band. The default value is disabled.Step 27 Click Apply to save the configuration changes.Note To configure the video bandwidth using the controller GUI, perform Step 28 through Step 33.Note The template bandwidth that is configured for a media stream should be more than the bandwidth for the source media stream.Note sThe voice configuration is optional. Keep the voice bandwidth allocation to a minimum for better performance.Step 28 Choose WIRELESS > 802.11a/n or 802.11b/g/n > Media to open the 802.11a/n (5 GHZ) or 802.11b/g/n > Media page.Step 29 Choose the Video tab (see Figure 5-4).Figure 5-4 802.11 a/n VideoStep 30 Select the Admission Control (ACM) check box to enable the video CAC for this radio band. The default value is disabled.Step 31 In the Max RF Bandwidth field, enter the percentage of the maximum bandwidth allocated to clients for video applications on this radio band. Once the client reaches the value specified, the access point rejects new requests on this radio band.

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