Cambium Networks 50450M 5GHz Point to MultiPoint Multi User MIMO Access Point User Manual USERS MANUAL PART3

Cambium Networks Limited 5GHz Point to MultiPoint Multi User MIMO Access Point USERS MANUAL PART3

USERS MANUAL PART3

Chapter 7: Configuration Configuring radio parameters Page 7-164 Radio page - PMP 450 SM 3.5 GHz Table 154 PMP 450 SM Radio attributes – 3.5 GHz Attribute Meaning Custom Radio Frequency Scan Selection List Check the frequencies that SM has to scan for AP transmissions. See Radio Frequency Scan Selection List on page 7-169. See Table 142 PMP 450i AP Radio attributes - 5 GHz on page 7-132.
Chapter 7: Configuration Configuring radio parameters Page 7-165 Radio page - PMP 450 SM 2.4 GHz Table 155 PMP 450 SM Radio attributes – 2.4 GHz Attribute Meaning Custom Radio Frequency Scan Selection List Check the frequencies that SM has to scan for AP transmissions. See Radio Frequency Scan Selection List on page 7-169. See Table 142 PMP 450i AP Radio attributes - 5 GHz on page 7-132.
Chapter 7: Configuration Configuring radio parameters Page 7-166 Radio page - PMP 450 SM 900 MHz Table 156 PMP 450 SM Radio attributes –900 MHz Attribute Meaning Custom Radio Frequency Scan Selection List See Table 142 PMP 450i AP Radio attributes - 5 GHz on page 7-132. Channel Bandwidth Scan See Table 142 PMP 450i AP Radio attributes - 5 GHz on page 7-132. Cyclic Prefix Scan AP Selection Method
Chapter 7: Configuration Configuring radio parameters Page 7-167 Color Code 1 Installation Color Code Large VC data Queue Color Code External Gain See Table 142 PMP 450i AP Radio attributes - 5 GHz on page 7-132 Receive Quality Debug See Table 142 PMP 450i AP Radio attributes - 5 GHz on page 7-132. Note The frequencies that a user can select are controlled by the country or a region and the Channel Bandwidth selected. There can be a case where a user adds a custom frequency (from the Custom Frequencies page on page 7-172) and cannot see it in the pull down menu.
Chapter 7: Configuration Configuring radio parameters Page 7-168 Radio page - PTP 450 BHM 5 GHz Table 157 PTP 450 BHM Radio attributes –5 GHz Attribute Meaning Refer Table 145 PTP 450i BHM Radio page attributes – 5 GHz on page 7-145 for all parameters details.
Chapter 7: Configuration Configuring radio parameters Page 7-169 Radio page - PTP 450 BHS 5 GHz Table 158 PTP 450 BHM Radio attributes –5 GHz
Chapter 7: Configuration Configuring radio parameters Page 7-170 Attribute Meaning Refer Table 146 PTP 450i BHS Radio attributes – 5 GHz on page 7-148 for all parameters details. Radio Frequency Scan Selection List The SM or BHS scans complete spectrum as per Full Spectrum Band Scan feature. SMs or BHS first boot into the smallest selected channel bandwidth (10 MHz, if selected) and scan all selected frequencies across both the 5.4 GHz and 5.7 GHz frequency bands. After this scan, if a wider channel bandwidth is selected (20 MHz), the SM/BHS automatically changes to 20 MHz channel bandwidth and then scans for APs/BHSs. After the SM/BHS finishes this final scan it will evaluate the best AP/BHM with which to register. If required for registration, the SM/BHS changes its channel bandwidth back to 10 MHz to match the best AP/BHM. The SM/BHS will attempt to connect to an AP/BHM based on power level (which affects the modulation state), channel bandwidth (which affects throughput) and number of SM/BHS registrations to the AP/BHM (which affects system contention performance). If it is desired to prioritize a certain AP/BHM over other available APs/BHMs, operators may use the Color Code Priority feature on the SM/BHS. Utilization of the Color Code feature on the AP/BHM is recommended to further constrain the AP selection. If the SM does not find any suitable APs/BHMs for registration after scanning all channel bandwidths, the SM restarts the scanning process beginning with the smallest configured channel bandwidth. Selecting multiple frequencies and multiple channel bandwidths impacts the SM/BHS scanning time. The biggest consumption of time is in the changing of the SM/BHS channel bandwidth setting. The worst case scanning time is approximately two minutes after boot up (SM/BHS with all frequencies and channel bandwidths selected and registering to an AP/BHM at 10 MHz). If only one channel bandwidth is selected the time to scan all the available frequencies and register to an AP/BHM is approximately one minute after boot up. Other scanning features such as Color Code, Installation Color Code, and RADIUS authentication are unaffected by the Full Band Scan feature.
Chapter 7: Configuration Configuring radio parameters Page 7-171 Dedicated Multicast Virtual Circuit (VC) A Multicast VC allows to configure multicast packets to be transmitted over a dedicated channel at a configurable rate of 1X, 2X, 4X or 8X. This feature is available only for the PMP 450 and PMP 450i and is not backward compatible with PMP 430 series of radios. To configure Multicast VC, the AP must have this enabled. This can be enabled in the “Multicast Data Control” section (under Configuration > Radio page). The default value is “Disable”. If set to the default value, all multicast packets are transmitted over the Broadcast VC data path. To enable, select the data rate that is desired for the Multicast VC Data Rate parameter and click Save Changes button. The radio requires no reboot after any changes to this parameter. The multicast VC allows three different parameters to be configured on the AP. These can be changed on the fly and are saved on the flash memory. Note If the Multicast VC Data Rate is set to a modulation that the radio is not currently capable of or operates in non-permitted channel conditions, multicast data is sent but not received. Ex: If Multicast VC Data Rate is set to 6x and the channel conditions only permit 4x mode of operation, then multicast data is sent at 6x modulation but the SM will not receive the data. Note The PMP 450 AP supports up to 119 VCs (instead of 238 VCs) when configured for 30 MHz channel bandwidth or 5 ms Frame Period. This limitation is not applicable for PMP 450i/450m Series. Note  Actual Multicast CIR honored by the AP = Configured Multicast CIR/ (Multicast Repeat Count + 1).  Increasing the Multicast data rate has no impact on the Unicast data rate.  For multicast and unicast traffic mix scenario examples, see Table 159. Table 159 Example for mix of multicast and unicast traffic scenarios Repeat Count Multicast Data Rate (Mbps) Unicast Data Rate (Mbps) Aggregate DL Data Rate (Mbps) 0 10 40 50 1 5 40 45 2 3.33 40 43.33 The statistics have been added to the Data VC page (under Statistics > Data VC). The table displays the multicast row on the PMP 450 Platform Family AP. The SM displays the multicast row if it is a PMP 450 Platform Family.
Chapter 7: Configuration Configuring radio parameters Page 7-172 Figure 144 Multicast VC statistics The AP and SM display Transmit and Receive Multicast Data Count (under the Statistics > Scheduler page), as shown in Figure 145. Figure 145 Multicast scheduler statistics
Chapter 7: Configuration Configuring radio parameters Page 7-173 Custom Frequencies page In addition to the Radio tab, AP/SM/BH has another tab called Custom Frequencies as shown in Table 160. The custom frequency tab allows to configure custom frequency at 1 KHz raster. It means that the custom frequencies can be at granularity of 1 KHz e.g. 4910.123 MHz, 4922.333 MHz, 4933.421 MHz etc. Note Ensure that a customer frequency exists before using SNMP to set the radio to a Custom Frequency. Table 160 450 Platform Family AP/SM/BH Custom Frequencies page – 5 GHz Attribute Meaning Custom Frequency Configuration Custom frequencies with a channel raster of 1 KHz can be added from the available range by keying in the frequency and then clicking the Add Frequency button. Click Remove Frequency button to delete a specific frequency keyed in the text box. Click Default Frequencies button to add a pre-defined list of frequencies that can be used in this band. This list can be reduced or increased by manually removing or adding other custom frequencies. Custom Frequencies Displays the complete list of user configured custom frequencies.
Chapter 7: Configuration Configuring radio parameters Page 7-174 Table 161 PMP/PTP 450 SM/BH Custom Frequencies page – 3.65 GHz Attribute Meaning Custom Frequency Configuration Custom frequencies with a channel raster of 1 KHz can be added from the available range by keying in the frequency and then clicking the Add Frequency button. Click Remove Frequency button to delete a specific frequency keyed in the text box. Click Default Frequencies button to add a pre-defined list of frequencies that can be used in this band. This list can be reduced or increased by manually removing or adding other custom frequencies. Custom Frequencies Displays the complete list of user configured custom frequencies.
Chapter 7: Configuration Configuring radio parameters Page 7-175 Table 162 PMP/PTP 450 SM/BH Custom Frequencies page – 3.5 GHz Attribute Meaning Custom Frequency Configuration Custom frequencies with a channel raster of 1 KHz can be added from the available range by keying in the frequency and then clicking the Add Frequency button. Click Remove Frequency button to delete a specific frequency keyed in the text box. Click Default Frequencies button to add a pre-defined list of frequencies that can be used in this band. This list can be reduced or increased by manually removing or adding other custom frequencies.
Chapter 7: Configuration Configuring radio parameters Page 7-176 DFS for 5 GHz Radios Dynamic Frequency Selection (DFS) is a requirement in several countries and regions for 5 GHz unlicensed systems to detect radar systems and avoid co-channel operation. DFS and other regulatory requirements drive the settings for the following parameters, as discussed in this section:  Country Code  Primary Frequency  Alternate 1 and Alternate 2 Frequencies  External Antenna Gain On the AP, the Home > DFS Status page shows current DFS status of all three frequencies and a DFS log of past DFS events. Figure 146 AP DFS Status DFS operation The ODUs use region-specific DFS based on the Country Code selected on the module’s Configuration, General page. By directing installers and technicians to set the Country Code correctly, the operator gains confidence the module is operating according to national or regional regulations without having to deal with the details for each region. The details of DFS operation for each Country Code, including whether DFS is active on the AP, SM, and which DFS regulations apply is shown in Table 259 on page 10-47.
Chapter 7: Configuration Configuring radio parameters Page 7-177 Contention slots The SM uses reserved Contention slots and unused data slots for bandwidth requests. Uplink Data Slots are used first for data. If they are not needed for data in a given frame, the remaining data slots can be used by the SMs for bandwidth requests. This allows SMs in sectors with a small number of Contention slots configured to still successfully transmit bandwidth requests using unused data slots. A higher number of Contention slots give higher probability that a SM’s bandwidth request is correctly received when the system is heavily loaded, but with the tradeoff that sector capacity is reduced, so there is less capacity to handle the request. The sector capacity reduction is about 200 kbps for each Contention slot configured in a 20 MHz channel at QPSK MIMO-A modulation. The reduction in sector capacity is proportionally higher at MIMO-B modulations (2 times at QPSK MIMO-B, 4 times at 16 QAM MIMO-B, 6 times at 64 QAM MIMO-B and 8 times at 256 QAM MIMO-B). If very few reserved Contention slots are specified, then latency increases in high traffic periods. If too many are specified, then the maximum capacity is unnecessarily reduced. The suggested Contention slot settings as a function of the number of active SMs in the sector are shown in the table below. Table 163 Contention slots and number of SMs Number of SMs Recommended Number of Contention slots 1 to 10 3 11 to 50 4 51 to 150 6 151 and above 8 In a typical cluster, each AP must be set to the same number of Contention slots to assure proper timing in the send and receive cycles. However, where high incidence of small packets exists, as in a sector that serves several VoIP streams, additional Contention slots may provide better results. For APs in a cluster of mismatched Contention slots setting, or where PMP 450/450i Series is collocated with radios using different technologies, like PMP 430 or FSK, in the same frequency band, use the frame calculator. To download the PMP 450 Contention Slots Paper, see http://www.cambiumnetworks.com/solution-papers/pmp-450-contention-slots. For co-location of radios with mismatched configuration parameters, see the co-location tool available here: https://support.cambiumnetworks.com/files/colocationtool/
Chapter 7: Configuration Configuring radio parameters Page 7-178 MIMO-A mode of operation 450 Platform Family supports MIMO-B mode using the following modulation levels: QPSK, 16-QAM, 64-QAM and 256-QAM. System Release 13.2 introduces MIMO-A mode of operation using the same modulation levels as the MIMO-B mode. With MIMO-B, the radio sends different streams of data over the two antennas whereas with MIMO-A, the radio uses a scheme that tries to optimize coverage by transmitting the same data over both antennas. This redundancy improves the signal to noise ratio at the receiver making it more robust, at the cost of throughput. In addition to introducing MIMO-A modes, improvements have been made to the existing rate adapt algorithm to switch between MIMO-A and MIMO-B seamlessly without any intervention or added configuration by the operator. The various modulation levels used by the 450 Platform Family are shown in Table 164. Table 164 450 Platform Family Modulation levels Rate MIMO-B MIMO-A QPSK 2X MIMO-B 1X MIMO-A 16-QAM 4X MIMO-B 2X MIMO-A 64-QAM 6X MIMO-B 3X MIMO-A 265-QAM 8X MIMO-B 4X MIMO-A System Performance For System Performance details of all the 450 Platform Family ODUs, refer to the tools listed below:  Link Capacity Planner for PMP/PTP 450 and 450i: https://support.cambiumnetworks.com/files/capacityplanner/  LINKPlanner for PMP/PTP 450/450i and PMP 450m: https://support.cambiumnetworks.com/files/linkplanner/
Chapter 7: Configuration Configuring radio parameters Page 7-179 Table 165 Co-channel Interference per (CCI) MCS MCS of Victim MCS of Interferer Channel BW (MHz) CCI 1X (QPSK SISO) 6X (64-QAM MIMO-B) 5, 7, 10, 15, 20, 30, or 40 10 dB 2X (16-QAM SISO) 6X (64-QAM MIMO-B) 5, 7, 10, 15, 20, 30, or 40 17 dB 3X (64-QAM SISO) 6X (64-QAM MIMO-B) 5, 7, 10, 15, 20, 30, or 40 25 dB 1X (QPSK MIMO-A) 6X (64-QAM MIMO-B) 5, 7, 10, 15, 20, 30, or 40 7 dB 2X (16-QAM MIMO-A) 6X (64-QAM MIMO-B) 5, 7, 10, 15, 20, 30, or 40 14 dB 3X (64-QAM MIMO-A) 6X (64-QAM MIMO-B) 5, 7, 10, 15, 20, 30, or 40 22 dB 4X (256-QAM MIMO-A) 6X (64-QAM MIMO-B) 5, 7, 10, 15, 20, 30, or 40 30 dB 2X (QPSK MIMO-B) 6X (64-QAM MIMO-B) 5, 7, 10, 15, 20, 30, or 40 10 dB 4X (16-QAM MIMO-B) 6X (64-QAM MIMO-B) 5, 7, 10, 15, 20, 30, or 40 17 dB 6X (64-QAM MIMO-B) 6X (64-QAM MIMO-B) 5, 7, 10, 15, 20, 30, or 40 25 dB 8X (256-QAM MIMO-B) 6X (64-QAM MIMO-B) 5, 7, 10, 15, 20, 30, or 40 33 dB Table 166 Adjacent Channel Interference (ACI) per MCS MCS of Victim MCS of Interferer Channel BW (MHz) ACI Guard Band 1X (QPSK SISO) 6X (64-QAM MIMO-B) 5, 7, 10, 15, 20, 30, or 40 -16 dB None 2X (16-QAM SISO) 6X (64-QAM MIMO-B) 5, 7, 10, 15, 20, 30, or 40 -16 dB None 3X (64-QAM SISO) 6X (64-QAM MIMO-B) 5, 7, 10, 15, 20, 30, or 40 -16 dB None 1X (QPSK MIMO-A) 6X (64-QAM MIMO-B) 5, 7, 10, 15, 20, 30, or 40 -13 dB None 2X (16-QAM MIMO-A) 6X (64-QAM MIMO-B) 5, 7, 10, 15, 20, 30, or 40 -13 dB None
Chapter 7: Configuration Configuring radio parameters Page 7-180 3X (64-QAM MIMO-A) 6X (64-QAM MIMO-B) 5, 7, 10, 15, 20, 30, or 40 -13 dB None 4X (256-QAM MIMO-A) 6X (64-QAM MIMO-B) 5, 7, 10, 15, 20, 30, or 40 -10 dB None 2X (QPSK MIMO-B) 6X (64-QAM MIMO-B) 5, 7, 10, 15, 20, 30, or 40 -16 dB None 4X (16-QAM MIMO-B) 6X (64-QAM MIMO-B) 5, 7, 10, 15, 20, 30, or 40 -16 dB None 6X (64-QAM MIMO-B) 6X (64-QAM MIMO-B) 5, 7, 10, 15, 20, 30, or 40 -16 dB None 8X (256-QAM MIMO-B) 6X (64-QAM MIMO-B) 5, 7, 10, 15, 20, 30, or 40 -10 dB None Guard Band When synchronized, no Guard Bands are needed for the 450* and 450i Series. * For PMP 450 AP (3.6 GHz) and 450 platform APs with 450b SM (5 GHz) connected, Configuration -> Radio -> Power Control -> Adjacent Channel Support must be enabled. Improved PPS performance of 450 Platform Family The 450m, 450i, and 450b Series provides improved packets per second (PPS) performance compared to 450 Series. Through hardware and software enhancements, the PPS performance of the PMP 450i Series AP and PMP 450b SM has been improved to 40k packets/second, measured through a standard RFC2544 test using 64 bytes packets. With this enhancement, operators are able to provide higher bandwidth including better VoIP and video services to end customers using existing SM deployments. PMP 450m supports 100k packets/second.
Chapter 7: Configuration Setting up SNMP agent Page 7-181 Setting up SNMP agent Operators may use SNMP commands to set configuration parameters and retrieve data from the AP and SM modules. Also, if enabled, when an event occurs, the SNMP agent on the 450 Platform Family sends a trap to whatever SNMP trap receivers configured in the management network.  SNMPv2c  SNMPv3
Chapter 7: Configuration Setting up SNMP agent Page 7-182 Configuring SM/BHS’s IP over-the-air access To access the SM/BHS management interface from a device situated above the AP, the SM/BHS’s Network Accessibility parameter (under the web GUI at Configuration > IP) may be set to Public. Table 167 LAN1 Network Interface Configuration tab of IP page attributes Attribute Meaning IP Address Internet Protocol (IP) address. This address is used by family of Internet protocols to uniquely identify this unit on a network. Network Accessibility Specify whether the IP address of the SM/BHS must be visible to only a device connected to the SM/BHS by Ethernet (Local) or be visible to the AP/BHM as well (Public). Subnet Mask If Static IP is set as the Connection Type of the WAN interface, then this parameter configures the subnet mask of the SM/BHS for RF management traffic. Gateway IP Address If Static IP is set as the Connection Type of the WAN interface, then this parameter configures the gateway IP address for the SM/BHS for RF management traffic. DHCP state If Enabled is selected, the DHCP server automatically assigns the IP configuration (IP address, subnet mask, and gateway IP address) and the values of those individual parameters (above) are not used. The setting of this DHCP state parameter is also viewable (read only), in the Network Interface tab of the Home page. DNS IP Address Canopy devices allow for configuration of a preferred and alternate DNS server IP address either automatically or manually. Devices must set DNS server IP address manually when DHCP is disabled for the management interface of the device. The default DNS IP addresses are 0.0.0.0 when configured manually. Preferred DNS Server The first address used for DNS resolution. Alternate DNS Server If the Preferred DNS server cannot be reached, the Alternate DNS Server is used.
Chapter 7: Configuration Setting up SNMP agent Page 7-183 Domain Name The operator’s management domain name may be configured for DNS. The domain name configuration can be used for configuration of the servers in the operator’s network. The default domain name is example.com, and is only used if configured as such.
Chapter 7: Configuration Setting up SNMP agent Page 7-184 Configuring SNMP The SNMP page configuration is explained below. Note The SNMP page for AP, SM, BHM and BHS has the same parameter attributes. SNMP page – AP/SM/BHM/BHS The SNMP page is explained in Table 168. Table 168 SNMP page attributes
Chapter 7: Configuration Setting up SNMP agent Page 7-185 Attribute Meaning SNMP Community String 1 Specify a control string that can allow a Network Management Station (NMS) to access SNMP information. No spaces are allowed in this string. The default string is Canopy. SNMP Community String 1 Permissions You can designate the SNMP Community String 1 to be the password for WM, for example, to have Read / Write access to the module via SNMP or for all SNMP access to the module to be Read Only. SNMP Community String 2 (Read Only) Specify an additional control string that can allow a Network Management Station (NMS) to read SNMP information. No spaces are allowed in this string. The default string is Canopyro. This password will never authenticate a user or an NMS to read/write access.
Chapter 7: Configuration Setting up SNMP agent Page 7-186 The Community String value is clear text and is readable by a packet monitor. Additional security derives from the configuration of the Accessing Subnet, Trap Address, and Permission parameters. Engine ID The Engine ID may be between 5 and 32 hex characters. The hex character input is driven by RFC 3411 recommendations on the Engine ID. The default Engine ID is the MAC address of the device SNMPv3 Security Level Specify security model where users are defined and authenticated before granting access to any SNMP service. Each device can configure the security level of SNMPv3 to No authentication/No privacy, Authentication/No privacy, or Authentication/Privacy. SNMPv3 Authentication Protocol Currently, the SNMPv3 authentication protocol MD5 is supported. SNMPv3 Privacy Protocol Currently, the SNMPv3 privacy protocol CBC-DES is supported. SNMPv3 Read-Only User This field allows for a read-only user per devices. The default values for the Read-Only users is:  Username = Canopyro  Authentication Password = authCanopyro  Privacy Password = privacyCanopyro SNMPv3 Read/Write User Read-write user by default is disabled. The default values for the Read/Write users is :  Username = Canopy  Authentication Password = authCanopy  Privacy Password = privacyCanopy Additional SNMP v3 User 1 This field allows to configure the Additional SNMP v3 User 1. The configurations include:  Enable/Disable User: These fields allow to enable or disable the user using the Enable User or Disable User radio buttons.  Authorizaton Key: This field allows to configure an authorization key for the user.  Privacy Key: This field allows to configure a privacy key for the user. Note: Set SNMP v3 Security Level field to :auth,priv to enable the Authorization Key and Privacy Key fields. Enabled User can be set with following privacy settings:  ReadWrite User  ReadOnly User
Chapter 7: Configuration Setting up SNMP agent Page 7-187 Additional SNMP v3 User 2 This field allows to configure the Additional SNMP v3 User 2. The configurations include:  Enable/Disable User: These fields allow to enable or disable the user using the Enable User or Disable User radio buttons.  Authorizaton Key: This field allows to configure an authorization key for the user.  Privacy Key: This field allows to configure a privacy key for the user. Set SNMP v3 Security Level field to :auth,priv to enable the Authorization Key and Privacy Key fields. Enabled User can be set with following Privacy settings:  ReadWrite User  ReadOnly User Additional SNMP v3 User 3 This field allows to configure the Additional SNMP v3 User 3. The configurations include:  Enable/Disable User: These fields allow to enable or disable the user using the Enable User or Disable User radio buttons.  Authorizaton Key: This field allows to configure an authorization key for the user.  Privacy Key: This field allows to configure a privacy key for the user. Set SNMP v3 Security Level field to :auth,priv to enable the Authorization Key and Privacy Key fields. Enabled User can be set with following Privacy settings:  ReadWrite User  ReadOnly User SNMPv3 Trap Configuration When enabling transmission of SNMPv3 traps the read-only or read-write user credentials must be used and selected properly in order for the SNMP manager to correctly interpret the traps. By default transmission of SNMPv3 traps is disabled and all traps sent from the radios are in SNMPv2c format. Accessing IP / Subnet Mask 1 to 10 Specify the addresses that are allowed to send SNMP requests to this AP. The NMS has an address that is among these addresses (this subnet). You must enter both  The network IP address in the form xxx.xxx.xxx.xxx  The CIDR (Classless Interdomain Routing) prefix length in the form /xx For example:  the /16 in 198.32.0.0/16 specifies a subnet mask of 255.255.0.0 (the first 16 bits in the address range are identical among all members of the subnet).  192.168.102.0 specifies that any device whose IP address is in the range 192.168.102.0 to 192.168.102.254 can send SNMP requests to the AP, presuming that the device supplies the correct Community String value.
Chapter 7: Configuration Setting up SNMP agent Page 7-188 The default treatment is to allow all networks access. For more information on CIDR, execute an Internet search on “Classless Interdomain Routing.” You are allowed to specify as many as 10 different accessing IP address, subnet mask combinations. RECOMMENDATION: The subscriber can access the SM/BHS by changing the subscriber device to the accessing subnet. This hazard exists because the Community String and Accessing Subnet are both visible parameters. To avoid this hazard, configure the SM/BHS to filter (block) SNMP requests. SNMP Trap Server DNS Usage The management DNS domain name may be toggled such that the name of the trap server only needs to be specified and the DNS domain name is automatically appended to that name. The default SNMP trap server addresses for all 10 available servers is 0.0.0.0 with the appending of the DNS domain name disabled. Trap Address 1 to 10 Specify ten or fewer IP addresses (xxx.xxx.xxx.xxx) or DNS names to which SNMP traps must be sent. Traps inform Wireless Manager or an NMS that something has occurred. For example, trap information is sent  after a reboot of the module.  when an NMS attempts to access agent information but either  supplied an inappropriate community string or SNMP version number.  is associated with a subnet to which access is disallowed. Trap Enable, Sync Status If the sync status traps (sync lost and sync regained) have to be sent to Wireless Manager or an NMS, select Enabled. If these traps have to be suppressed, select Disabled. Trap Enable, Session Status If you want session status traps sent to Wireless Manager or an NMS, select Enabled. Site Information Viewable to Guest Users Operators can enable or disable site information from appearing when a user is in GUEST account mode. Site Name Specify a string to associate with the physical module. This parameter is written into the sysName SNMP MIB-II object and can be polled by Wireless Manager or an NMS. The buffer size for this field is 128 characters. Site Contact Enter contact information for the module administrator. This parameter is written into the sysContact SNMP MIB-II object and can be polled by Wireless Manager or an NMS. The buffer size for this field is 128 characters. Site Location Enter information about the physical location of the module. This parameter is written into the sysLocation SNMP MIB-II object and can be polled by Wireless Manager or an NMS. The buffer size for this field is 128 characters.
Chapter 7: Configuration Configuring syslog Page 7-189 Configuring syslog 450 Platform Family includes:  Syslog event logging  Configuring system logging
Chapter 7: Configuration Configuring syslog Page 7-190 Syslog event logging Following events are logged in syslog as explained in Table 169. Table 169 Syslog parameters Attribute Meaning Timestamp All syslog messages captured from the radio have a timestamp. Configuration Changes This includes any device setting that has changed and includes the old or new parameter value, including the device reboots. User Login and Logout Syslog records each user login and logout, with username. Add or Delete of user accounts through GUI and SNMP Syslog captures any user accounts that are added or deleted. Spectrum Analysis Syslog records a message every time Spectrum Analysis runs. Note Since the AP/BHM must be set to a SM/BHS for Spectrum Analysis, syslog messages are not reported from the radio until the scan is done and the radio mode is switched back to AP/BHM. Link Test Syslog records a message every time a Link Test is run. Clear Statistics Syslog sends a message when Statistics are cleared. This is done individually for each statistics page that is cleared. SM Register or De-register Syslog records a message when a SM registers or deregisters. BHS Connect or Disconnect Syslog records a message when a BHS connects or disconnects. Configuring system logging To configure system logging, select the menu option Configuration > Syslog. Syslog page of AP/BHM The Syslog Configuration page for AP/BHM is shown in Table 170.
Chapter 7: Configuration Configuring syslog Page 7-191 Table 170 Syslog Configuration attributes - AP Attribute Meaning Syslog DNS Server Usage To configure the AP/BHM to append or not append the DNS server name to the syslog server name. Syslog Server The dotted decimal or DNS name of the syslog server address. Syslog Server Port The syslog server port (default 514) to which syslog messaging is sent. AP Syslog Transmit Or BHM Syslog Transmit When enabled, syslog messages are sent from the AP/BHM. SM Syslog Transmit Or BHS Syslog Transmit When enabled, syslog messages are sent from all the registered SMs/BHS, unless they are individually set to override this. Syslog Minimum Level This provides a selection for the minimum syslog message severity that is sent to the syslog server. Values range from fatal (highest severity and least verbose) to info (lowest severity, maximum verbosity). For example: If the Syslog Minimum Level is set to notice, then only messages with severity notice and above are sent. Syslog page of SM To configure system logging, select the menu option Configuration > Syslog. The Syslog Configuration page is shown in Table 171.
Chapter 7: Configuration Configuring syslog Page 7-192 Table 171 Syslog Configuration attributes - SM Attribute Meaning Syslog Configuration Source This control determines whether the SM will attempt to use the syslog server definition from the AP, or whether it will use a local server definition. When set to AP preferred, use local when AP configuration unavailable, and if the SM can register with an AP, then it uses the syslog server defined on that AP. If the SM cannot register then it will syslog to its locally defined syslog server through its wired connection, if any. When set to Local only the SM ignores the AP’s definition of the syslog server and allows the syslog server to be configured individually for each SM. Syslog DNS Server Usage To configure the SM to append or not the DNS server name to the syslog server name. Syslog Server The dotted decimal or DNS name of the syslog server address. Syslog Server Port The syslog server port (default 514) to which syslog messaging is sent. Syslog Transmission Controls the SMs ability to transmit syslog messages. When set to “Learn from AP” the AP will control whether this SM transmits syslog messages. When set to “enable” or “disable” the SM will control whether it sends syslog messages. This allows an operator to override the AP settings for individual SMs in a sector. Syslog Minimum Level Source This control determines whether the SM attempts to use the minimum syslog level defined by the AP, or whether it uses a local defined value using the “Syslog Minimum Level” parameter. When set to “AP preferred, use local when AP configuration unavailable”, and if the SM can register with an AP, then it uses the Syslog Minimum Level defined on that AP. If the SM cannot register then it uses its own Syslog Minimum Level setting. When set to “Local only” the SM will always use its own Syslog Minimum Level setting and ignores the AP’s setting.
Chapter 7: Configuration Configuring syslog Page 7-193 Syslog Minimum Level This provides a selection for the minimum syslog message severity that is sent to the syslog server. Values range from fatal (highest severity and least verbose) to info (lowest severity, maximum verbosity). For example: If the Syslog Minimum Level is set to notice, then only messages with severity notice and above are sent. Syslog page of BHS The Syslog Configuration page is shown in Table 172. Table 172 Syslog Configuration attributes - BHS Attribute Meaning Syslog Configuration Source This control determines whether the BHS will attempt to use the syslog server definition from the BHM, or whether it will use a local server definition.  When set to BHM preferred, use local when BHM configuration unavailable, and if the BHS can register with a BHM, then it uses the syslog server defined on that BHM. If the BHS cannot register then it will syslog to its locally defined syslog server through its wired connection, if any.  When set to Local only the BHS ignores the BHM’s definition of the syslog server and allows the syslog server to be configured individually for each BHS. Syslog DNS Server Usage To configure the BHS to append or not to append the DNS server name to the syslog server name. Syslog Server The dotted decimal or DNS name of the syslog server address. Syslog Server Port The syslog server port (default 514) to which syslog messaging is sent. Syslog Transmission Controls the BHSs ability to transmit syslog messages. When set to Learn from BHM the BHM will control whether this BHS transmits syslog messages. When set to enable or disable the BHS will control whether it
Chapter 7: Configuration Configuring syslog Page 7-194 sends syslog messages. This allows an operator to override the BHM settings for individual BHSs in a sector. Syslog Minimum Level Source This control determines whether the BHS attempts to use the minimum syslog level defined by the BHM, or whether it uses a local defined value using the Syslog Minimum Level parameter.  When set to BHM preferred, use local when BHM configuration unavailable, and if the BHS can register with a BHM, then it uses the Syslog Minimum Level defined on that BHM. If the BHS cannot register then it uses its own Syslog Minimum Level setting. When set to Local only the BHS will always use its own Syslog Minimum Level setting and ignores the BHM’s setting. Syslog Minimum Level This provides a selection for the minimum syslog message severity that is sent to the syslog server. Values range from fatal (highest severity and least verbose) to info (lowest severity, maximum verbosity). For example: If the Syslog Minimum Level is set to notice, then only messages with severity notice and above are sent.
Chapter 7: Configuration Configuring remote access Page 7-195 Configuring remote access Accessing SM/BHS over-the-air by Web Proxy The SM/BHS may be accessed via the AP/BHM management GUI by navigating to Home > Session Status (or Home > Remote Subscribers for AP only) and clicking on the SM’s hyperlink. For example, to access one of the SMs, click LUID: 002 – [0a-00-3e-37-b9-fd], as shown in Figure 147. Figure 147 AP Session Status page The SessionStatus.xml hyper link allows user to export all displayed SM data in Session Status table into an xml file. To access any one of the SMs, click 450 Platform Family - SM hyperlink, as shown in Figure 148. Figure 148 AP Remote Subscribers page
Chapter 7: Configuration Monitoring the Link Page 7-196 Monitoring the Link Link monitoring procedure After configuring the link, either an operator in the network office or the SM/BHS INSTALLER user in the field (if read access to the AP/BHM is available to the INSTALLER) must perform the following procedure. Who is authorized and able to do this depends on local operator password policy, management VLAN setup and operational practices. To monitor the link for performance, follow these instructions: Procedure 22 Monitoring the AP-SM link 1 Access the web interface of the AP/BHM 2 In the left-side menu of the AP/BHM interface, select Home. 3 Click the Session Status tab. Figure 149 Session Status page 4 The Device tab of Session Status List display all displayed SMs – MAC address, PMP/PTP Hardware, Software Version, FPGA Version and State
Chapter 7: Configuration Monitoring the Link Page 7-197 5 Click Session Count tab of Session Status List to display values for Session Count, Reg Count, and Re-Reg Count.  Session Count: This field displays how many sessions the SM/BHS has had with the AP/BHM. Typically, this is the sum of Reg Count and Re-Reg Count. However, the result of internal calculation may display here as a value that slightly differs from the sum.  Reg Count: When a SM/BHS makes a Registration Request, the AP/BHM checks its local session database to see whether it was registered earlier. If the AP/BHM concludes that the SM/BHS is not currently in session database and it is valid Registration Request, then the request increments the value of this field.  Re-Reg Count: When a SM/BHS makes a Registration Request, the AP/BHM checks its local session database to see whether it was registered earlier. If the AP/BHM concludes that the SM/BHS is currently in session database, then the request increments the value of this field.  Typically, a Re-Reg is the case where both o SM/BHS attempts to reregister for having lost communication with the AP/BHM. o AP/BHM has not yet observed the link to the SM/BHS as being down. See Session tab on page 9-21 6 Click Power tab of Session Status list to display Downlink Rate, AP Rx Power (dBm), Signal Strength Radio (dB) for Uplink and Signal to Noise Radio (dB) for Uplink. See Power tab on page 9-23 7 Click Configuration tab of Session Status list to get QoS configuration details:  Sustained Data Rate (kbps)  Burst Allocation (kbit)  Max Burst Rate (kbit)  Low Priority CIR (kbps) See Configuration tab on page 9-25 8 Briefly monitor these values, occasionally refreshing this page by clicking another tab and then the Session Status tab again. 9 If these values are low (for example, 1, 1, and 0, respectively, meaning that the SM/BHS registered and started a stable session once) and are not changing:  Consider the installation successful.  Monitor these values from the network office over the next several hours and days. If these values are greater than 1, 1, and 0, or they increase while you are monitoring them, troubleshoot the link. (For example, Use Receive Power Level for aiming and then use Link Tests to confirm alignment). Refer Viewing Session Status on page 9-20 for more details.
Chapter 7: Configuration Monitoring the Link Page 7-198 Exporting Session Status page of AP/BHM The SessionStatus.xml hyper link allows user to export all displayed SMs or BHS data in Session Status table into an xml file. Figure 150 Exporting Session Status page of PMP 450m AP In case of PMP, if the session status page does not list any SM, the SessionStatus.xml will still be visible but the file would be empty. The file will contain data from all of the 5 different tables. Export from command line The scripts users can also get this file from command line, you have to authenticate successfully in order to download the file. Wget http://169.254.1.1/SessionStatus.xml?CanopyUsername=test&CanopyPassword=test
Chapter 7: Configuration Configuring quality of service Page 7-199 Configuring quality of service Maximum Information Rate (MIR) Parameters Point-to-multipoint links use the following MIR parameters for bandwidth management:  Sustained Uplink Data Rate (kbps)  Uplink Burst Allocation (kb)  Sustained Downlink Data Rate (kbps)  Downlink Burst Allocation (kb)  Max Burst Downlink Data Rate (kbps)  Max Burst Uplink Data Rate (kbps) Set each of these parameters per AP or per SM independently. Note You can refer below whitepaper for 450 Platform Family Max Burst MIR: http://www.cambiumnetworks.com/resources/pmp-450-maxburst/ Token Bucket Algorithm The software uses a token bucket algorithm that has the following features:  Stores credits (tokens) for the SM to spend on bandwidth for reception or transmission.  Drains tokens during reception or transmission.  Refills with tokens at the sustained rate set by the network operator. For each token, the SM can send toward the network in the uplink (or the AP can send toward the SM in the downlink) an equivalent number of kilobits. Two buckets determine the permitted throughput: one in the SM for uplink and one in the AP for downlink. The applicable set of Uplink Burst Allocation and Downlink Burst Allocation parameters determine the number of tokens that can fill each bucket. When the SM transmits (or the AP transmits) a packet, the equivalent number of tokens is removed from the uplink (or downlink) bucket. Except when full, the bucket is continuously being refilled with tokens at rates that the applicable set of Sustained Uplink Data Rate and Sustained Downlink Data Rate parameters specify. The bucket often drains at a rate that is much faster than the sustained data rate but can refill at only the sustained data rate. Thus, the effects of the allocation and rate parameters on packet delay are as follows:  The burst allocation affects how many kilobits are processed before packet delay is imposed.  The sustained data rate affects the packet delay that is imposed.
Chapter 7: Configuration Configuring quality of service Page 7-200 MIR Data Entry Checking Uplink and downlink MIR is enforced as shown in Figure 151. Note In these figures, entry refers to the setting in the data rate parameter, not the burst allocation parameter. Figure 151 Uplink and downlink rate caps adjusted to apply aggregate cap For example, in the SM, if you set the Sustained Uplink Data Rate parameter to 2,000 kbps and the Sustained Downlink Data Rate parameter to 10,000 kbps, then the uplink and downlink MIR that is enforced for the SM can be calculated as shown in Figure 152. Figure 152 Uplink and downlink rate cap adjustment example ` In this example case, the derived 1,167-kbps uplink and 5,833-kbps downlink MIR sum to the fixed 7,000-kbps aggregate cap of the SM. Committed Information Rate (CIR) The Committed Information Rate (CIR) capability feature enables the service provider to guarantee to any subscriber that bandwidth will never decrease to below a specified minimum unless CIR is oversubscribed or RF conditions are degraded. CIR is oversubscribed when there is not enough available bandwidth to support CIR configuration for all subscribers. In this condition, SMs which are configured with a nonzero CIR will all operate at the maximum data rate supported by the link (subject to Maximum Information Rate and Burst Rate/Allocations). SMs which are configured with a CIR of 0 kbps will not transmit until CIR-configured SMs have completed transmission. CIR may be configured independently for high priority traffic and for low priority traffic. CIR parameters may be configured in the following ways:  Web-based management GUI  SNMP  Authentication Server (RADIUS) - when an SM successfully registers and authenticates, CIR information is retrieved from the RADIUS server. uplink cap enforced =uplink entry x aggregate cap for the SMuplink entry + downlink entrydownlink cap enforced =downlink entry x aggregate cap for the SMuplink entry + downlink entryuplink cap enforced =2,000 kbps x 7,000 kbps2,000 kbps + 10,000 kbps= 1,167 kbpsdownlink cap enforced =10,000 kbps x 7,000 kbps2,000 kbps + 10,000 kbps= 5,833 kbps
Chapter 7: Configuration Configuring quality of service Page 7-201 Active CIR configuration can be verified via the AP’s Home > Session Status page. Bandwidth from the SM Perspective In the SM, normal web browsing, e-mail, small file transfers and short streaming video are rarely rate limited with practical bandwidth management (QoS) settings. When the SM processes large downloads such as software upgrades and long streaming video or a series of medium-size downloads, the bucket rapidly drains, the burst limit is reached, and some packets are delayed. The subscriber experience is more affected in cases where the traffic is more latency sensitive. Interaction of Burst Allocation and Sustained Data Rate Settings If the Burst Allocation is set to 1200 kb and the Sustained Data Rate is set to 128 kbps, a data burst of 1000 kb is transmitted at full speed because the Burst Allocation is set high enough. After the burst, the bucket experiences a significant refill at the Sustained Data Rate. This configuration uses the advantage of the settable Burst Allocation. If both the Burst Allocation and the Sustained Data Rate are set to 128 kb, a burst is limited to the Burst Allocation value. This configuration does not take advantage of the settable Burst Allocation. If the Burst Allocation is set to 128 kb and the Sustained Data Rate is set to 256 kbps, the actual rate is the burst allocation (but in kbps). As above, this configuration does not take advantage of the settable Burst Allocation. High-priority Bandwidth To support low-latency traffic such as VoIP (Voice over IP) or video, the system implements a high-priority channel. This channel does not affect the inherent latencies in the system but allows high-priority traffic to be immediately served. The high-priority pipe separates low-latency traffic from traffic that is latency tolerant, such as standard web traffic and file downloads. The number of channels available on the AP is reduced by the number of SMs configured for the high-priority channel (each SM operating with high-priority enabled uses two channels (virtual circuits) instead of one). A module prioritizes traffic by  reading the Low Latency bit (Bit 3) in the Ipv4 Type of Service (ToS) byte in a received packet. Bit 3 is set by a device outside the system.  reading the 802.1p field of the 802.1Q header in a received packet, where VLAN is enabled on the module.  comparing the 6-bit Differentiated Services Code Point (DSCP) field in the ToS byte of a received packet to a corresponding value in the Diffserv tab of the Configuration page of the module. A packet contains no flag that indicates whether the encoding is for the Low Latency bit or the DSCP field. For this reason, you must ensure that all elements in your trusted domain, including routers and endpoints, set and read the ToS byte with the same scheme. Modules monitor ToS bytes with DSCP fields, but with the following differences:  The 6-bit length of the field allows it to specify one of 64 service differentiations.  These correlate to 64 individual (CodePoint) parameters in the Diffserv tab of the Configuration page.
Chapter 7: Configuration Configuring quality of service Page 7-202  Per RFC 2474, 3 of these 64 are preset and cannot be changed. (See http://www.faqs.org/rfcs/rfc1902.html.)  For any or all of the remaining 61 CodePoint parameters, you can specify a value of o 0 through 3 for low-priority handling. o 4 through 7 for high-priority handling. Note Ensure that your Differentiated Services domain boundary nodes mark any entering packet, as needed, so that it specifies the appropriate Code Point for that traffic and domain. This prevents theft of service level. An example of the Diffserv page in the Configuration menu and parameter descriptions are provided under DiffServ attributes – AP/BHM on page 7-60. This tab and its rules are identical from module type to module type. However, any of the 61 configurable Code Points can be set to a different value from module to module, thus defining unique per-hop behavior for some traffic. This tab in the AP sets the priorities for the various packets in the downstream (sent from the public network). This tab in the SM sets the priorities for the various packets in the upstream (sent to the public network). Typically, some SMs attach to older devices that use the ToS byte as originally formatted, and others to newer devices that use the DSCP field. The default values in the Diffserv page allow your modules to prioritize traffic from the older devices roughly the same as they traditionally have. However, these default values may result in more high-priority traffic as DSCP fields from the newer devices are read and handled. So, after making changes in the Diffserv page, carefully monitor the high-priority channel for high packet rates  in SMs that you have identified as those to initially set and watch.  across your network when you have broadly implemented Code Point values, such as via SNMP.
Chapter 7: Configuration Configuring quality of service Page 7-203 Traffic Scheduling The characteristics of traffic scheduling in a sector are summarized in Table 173. Table 173 Characteristics of traffic scheduling Category Factor Treatment Throughput Aggregate throughput, less additional overhead 132 Mbps Latency Number of frames required for the scheduling process 1 Round-trip latency ≈ 6 ms AP broadcast the download schedule No High-priority Channel Allocation for uplink high-priority traffic on amount of high-priority traffic Dynamic, based on amount of high-priority traffic Allocation for downlink high-priority traffic on amount of high-priority traffic Dynamic, based on amount of high-priority traffic Order of transmission CIR high-priority CIR low-priority Other high-priority Other low-priority Caution Power requirements affect the recommended maximums for power cord length feeding the CMM4. See the dedicated user guide that supports the CMM that you are deploying. Packets that have a priority of 4 to 7 in either the DSCP or a VLAN 802.1p tag are automatically sent on the high-priority channel, but only where the high-priority channel is enabled.
Chapter 7: Configuration Configuring quality of service Page 7-204 Setting the Configuration Source The AP includes a Configuration Source parameter, which sets where SMs that register to the AP are controlled for MIR, CIR, VLAN, and the high-priority channel as follows. The Configuration Source parameter affects the source of:  all MIR settings: o Sustained Uplink Data Rate o Uplink Burst Allocation o Max Burst Uplink Data Rate o Sustained Downlink Data Rate o Downlink Burst Allocation o Max Burst Downlink Data Rate  all CIR settings: o Low Priority Uplink CIR o Low Priority Downlink CIR o Hi Priority Uplink CIR o Hi Priority Downlink CIR  all SM VLAN settings o Dynamic Learning o Allow Only Tagged Frames o VLAN Aging Timeout o Untagged Ingress VID o Management VID o VLAN Membership  the Hi Priority Channel setting Table 174 Recommended combined settings for typical operations Most operators who use… must set this parameter… in this web page/tab… in the AP to… no authentication server Authentication Mode Configuration/ Security Disabled Configuration Source Configuration/ General SM Wireless Manager (Authentication Server) Authentication Mode Configuration/ Security Authentication Server Configuration Source Configuration/ General Authentication Server RADIUS AAA server Authentication Mode Configuration/ Security RADIUS AAA Configuration Source Configuration/ General Authentication Server Table 175 Where feature values are obtained for a SM with authentication required Values are obtained from
Chapter 7: Configuration Configuring quality of service Page 7-205 Configuration Source Setting in the AP MIR Values VLAN Values High Priority Channel State Authentication Server Authentication Server Authentication Server Authentication Server SM SM SM SM Authentication Server+SM Authentication Server Authentication Server, then SM Authentication Server, then SM Note HPC represents the Hi Priority Channel (enable or disable). Where Authentication Server, then SM is the indication, parameters for which Authentication Server does not send values are obtained from the SM. This is the case where the Authentication Server is operating on an Authentication Server release that did not support the feature. This is also the case where the feature enable/disable flag in Authentication Server is set to disabled. The values are those previously set or, if none ever were, then the default values. Where Authentication Server is the indication, values in the SM are disregarded. Where SM is the indication, values that Authentication Server sends for the SM are disregarded. For any SM whose Authentication Mode parameter is not set to ‘Authentication Required’, the listed settings are derived as shown in Table 176. Table 176 MIR, VLAN, HPC, and CIR Configuration Sources, Authentication Disabled Configuration Source Setting in the AP Values are obtained from MIR Values VLAN Values High Priority Channel State CIR Values Authentication Server AP AP AP AP SM SM SM SM SM Authentication Server+SM SM SM SM SM
Chapter 7: Configuration Configuring quality of service Page 7-206 Configuring Quality of Service (QoS) Quality of Service (QoS) page of AP The QoS page of AP is explained in Table 177. Table 177 QoS page attributes - AP Attribute Meaning Max Burst Uplink Data Rate These parameters allow operators to specify the data rate at which a SM is allowed to transmit (until burst allocation limit is reached) before being recharged at the Sustained Uplink Data Rate with credits to transit more. When set to 0 (default), the burst rate is unlimited. Sustained Uplink Data Rate Specify the rate that each SM registered to this AP is replenished with credits for transmission. This default imposes no restriction on the uplink. See  Maximum Information Rate (MIR) Parameters on page 7-198  Interaction of Burst Allocation and Sustained Data Rate Settings on page 7-200  Configuration Source on page 7-69 Uplink Burst Allocation Specify the maximum amount of data to allow each SM to transmit before being recharged at the Sustained Uplink Data Rate with credits to transmit more. See Maximum Information Rate (MIR) Parameters on page 7-198  Interaction of Burst Allocation and Sustained Data Rate Settings on page 7-200  Configuration Source on page 7-69 Max Burst Downlink Data Rate These parameters allow operators to specify the data rate at which a SM is allowed to transmit (until burst allocation limit is reached) before being recharged at the Sustained Downlink Data Rate with credits to transit more. When set to 0 (default), the burst rate is unlimited.
Chapter 7: Configuration Configuring quality of service Page 7-207 Sustained Downlink Data Rate Specify the rate at which the AP is replenished with credits (tokens) for transmission to each of the SMs in its sector. This default imposes no restriction on the uplink. See Maximum Information Rate (MIR) Parameters on page 7-198  Interaction of Burst Allocation and Sustained Data Rate Settings on page 7-200  Configuration Source on page 7-69 Downlink Burst Allocation Specify the maximum amount of data to allow the AP to transmit to any registered SM before the AP is replenished with transmission credits at the Sustained Downlink Data Rate. See  Maximum Information Rate (MIR) Parameters on page 7-198  Interaction of Burst Allocation and Sustained Data Rate Settings on page 7-200  Configuration Source on page 7-69 Broadcast Downlink CIR Broadcast Downlink CIR (Committed Information Rate, a minimum) supports system designs where downlink broadcast is desired to have higher priority than other traffic. For many other system designs, especially typical internet access networks, leave the Broadcast Downlink CIR at the default. Broadcast Downlink CIR is closely related to the Broadcast Repeat Count parameter, which is settable in the Radio tab of the Configuration page in the AP: when the Broadcast Repeat Count is changed, the total of available bandwidth is also changed, since packets are being sent one, two, or three times, according to the setting in the Broadcast Repeat Count parameter. Priority Precedence Allows operator to decide if 802.1p or DiffServ priority bits must be used first when making priority decisions. PPPoE Control Message Priority Operators may configure the SM to utilize the high priority channel for PPPoE control messages. Configuring the SM in this fashion can benefit the continuity of PPPoE connections when there are issues with PPPoE sessions being dropped in the network. This prioritization may be configured in the DiffServ tab in the Configuration menu of the SM. Prioritize TCP ACK To reduce the likelihood of TCP acknowledgement packets being dropped, set this parameter to Enabled. This can improve throughput that the end user perceives during transient periods of congestion on the link that is carrying acknowledgements. Quality of Service (QoS) page of SM The QoS page of SM is explained in Table 178.
Chapter 7: Configuration Configuring quality of service Page 7-208 Table 178 QoS page attributes - SM Attribute Meaning Sustained Uplink Data Rate Specify the rate that this SM is replenished with credits for transmission. This default imposes no restriction on the uplink. See Maximum Information Rate (MIR) Parameters on page 7-198  Interaction of Burst Allocation and Sustained Data Rate Settings on page 7-200  Configuration Source on page 7-69 Sustained Downlink Data Rate Specify the rate at which the AP is replenished with credits (tokens) for transmission to this SM. This default imposes no restriction on the uplink. See Maximum Information Rate (MIR) Parameters on Page 7-198  Interaction of Burst Allocation and Sustained Data Rate Settings on page 7-200  Configuration Source on page 7-69 Uplink Burst Allocation Specify the maximum amount of data to allow this SM to transmit before being recharged at the Sustained Uplink Data Rate with credits to transmit more. See Maximum Information Rate (MIR) Parameters on page 7-198  Interaction of Burst Allocation and Sustained Data Rate Settings on page 7-200  Configuration Source on page 7-69
Chapter 7: Configuration Configuring quality of service Page 7-209 Downlink Burst Allocation Specify the maximum amount of data to allow the AP to transmit to this SM before the AP is replenished at the Sustained Downlink Data Rate with transmission credits. See Maximum Information Rate (MIR) Parameters on page 7-198  Interaction of Burst Allocation and Sustained Data Rate Settings on page 7-200  Configuration Source on page 7-69 Max Burst Uplink Data Rate These parameters allow operators to specify the data rate at which a SM is allowed to transmit (until burst allocation limit is reached) before being recharged at the Sustained Uplink Data Rate with credits to transit more. When set to 0 (default), the burst rate is unlimited. Max Burst Downlink Data Rate These parameters allow operators to specify the data rate at which a SM is allowed to transmit (until burst allocation limit is reached) before being recharged at the Sustained Downlink Data Rate with credits to transit more. When set to 0 (default), the burst rate is unlimited. Enable Broadcast / Multicast Data Rate This parameter allows the operator to specify if Broadcast and Multicast data is rate-limited. This data rate can be entered in Kbps or PPS (Packets Per Second). Broadcast / Multicast Data Rate This parameter allows the operator to specify a data rate at which Broadcast and Multicast traffic is sent via the radio link. Low Priority Uplink CIR This field indicates the minimum rate at which low priority traffic is sent over the uplink (unless CIR is oversubscribed or RF link quality is degraded).  Committed Information Rate (CIR) on page 7-199  Setting the Configuration Source on page 7-203 Low Priority Downlink CIR This field indicates the minimum rate at which low priority traffic is sent over the downlink (unless CIR is oversubscribed or RF link quality is degraded).  Committed Information Rate (CIR) on page 7-199  Setting the Configuration Source on page 7-203 Hi Priority Channel See  High-priority Bandwidth on page 7-200  Configuration Source on page 7-69 Hi Priority Uplink CIR This field indicates the minimum rate at which high priority traffic is sent over the uplink (unless CIR is oversubscribed or RF link quality is degraded).  Committed Information Rate (CIR) on page 7-199  Setting the Configuration Source on page 7-203 Hi Priority Downlink CIR This field indicates the minimum rate at which high priority traffic is sent over the downlink (unless CIR is oversubscribed or RF link quality is degraded).  Committed Information Rate (CIR) on page 7-199  Setting the Configuration Source on page 7-203
Chapter 7: Configuration Configuring quality of service Page 7-210 Priority Precedence Allows operator to decide if 802.1p or DiffServ priority bits must be used first when making priority decisions. PPPoE Control Message Priority Operators may configure the SM to utilize the high priority channel for PPPoE control messages. Configuring the SM in this fashion can benefit the continuity of PPPoE connections when there are issues with PPPoE sessions being dropped in the network. This prioritization may be configured in the DiffServ tab in the Configuration menu of the SM. Prioritize TCP ACK To reduce the likelihood of TCP acknowledgement packets being dropped, set this parameter to Enabled. This can improve throughput that the end user perceives during transient periods of congestion on the link that is carrying acknowledgements. This parameter, when enabled, can be particularly useful when running bi-direction FTP sessions over the link. If a link is primarily used for video surveillance, it is recommended to configure this parameter to Disabled. Quality of Service (QoS) page of BHM The QoS page of BHM is explained in Table 179. Table 179 QoS page attributes - BHM Attribute Meaning PPPoE Control Message Priority Operators may configure the BHM to utilize the high priority channel for PPPoE control messages. Configuring the BHM in this fashion can benefit the continuity of PPPoE connections when there are issues with PPPoE sessions being dropped in the network. This prioritization may be configured in the DiffServ tab in the Configuration menu of the BHS. Prioritize TCP ACK To reduce the likelihood of TCP acknowledgement packets being dropped, set this parameter to Enabled. This can improve throughput that the end user perceives during transient periods of congestion on the link that is carrying acknowledgements. This parameter, when enabled, can be particularly useful when running bi-direction FTP sessions over the link. If a link is primarily used for video surveillance, it is recommended to configure this parameter to Disabled. Quality of Service (QoS) page of BHS The QoS page of BHS is explained in Table 180.
Chapter 7: Configuration Configuring quality of service Page 7-211 Table 180 QoS page attributes - BHS Attribute Meaning PPPoE Control Message Priority Operators may configure the BHS to utilize the high priority channel for PPPoE control messages. Configuring the BHS in this fashion can benefit the continuity of PPPoE connections when there are issues with PPPoE sessions being dropped in the network. This prioritization may be configured in the DiffServ tab in the Configuration menu of the BHS. Prioritize TCP ACK To reduce the likelihood of TCP acknowledgement packets being dropped, set this parameter to Enabled. This can improve throughput that the end user perceives during transient periods of congestion on the link that is carrying acknowledgements. This parameter, when enabled, can be particularly useful when running bi-direction FTP sessions over the link. If a link is primarily used for video surveillance, it is recommended to configure this parameter to Disabled.
Chapter 7: Configuration Installation Color Code Page 7-212 Installation Color Code With this feature enabled on the AP and SM, operators may install and remotely configure SMs without having to configure matching color codes between the modules. While the SM is accessible for configuration from above the AP (for remote provisioning) and below the SM (for local site provisioning), no user data is passed over the radio link. When using the Installation Color Code feature, ensure that the SM is configured with the factory default Color Code configuration (Color Code 1 is “0”, Color Code 2-10 set to “0” and “Disable”). The status of the Installation Color Code can be viewed on the AP Eval web GUI page, and when the SM is registered using the Installation Color Code the message “SM is registered via ICC – Bridging Disabled!” is displayed in red on every SM GUI page. The Installation Color Code parameter is configurable without a radio reboot for both the AP and SM. If an SM is registered via Installation Color Code and the feature is then disabled, operators will need to reboot the SM or force it to reregister (i.e. using the Rescan APs functionality on the AP Eval page). Figure 153 Installation Color Code of AP
Chapter 7: Configuration Zero Touch Configuration Using DHCP Option 66 Page 7-213 Zero Touch Configuration Using DHCP Option 66 This feature allows an SM to get its configuration via DHCP option 66. This can be used for the initial configuration of an SM as well as managing the configuration of SMs on an ongoing basis. Here is how it works in brief:  When the SM boots up, if it is set to use DHCP client, it will send out a DHCP Discover packet which includes a request for DHCP Option 66.  In case of a brand new SM out of the box, the DHCP Discover packet is sent out if the SM connects to an AP using Installation Color Code (ICC), even though DHCP client is not enabled in factory default config.  An appropriately configured DHCP server will respond with a DHCP Offer and include a URL in response to the Option 66 request. The URL should point to the configuration file.  The device will download the configuration file and apply it. The device will reboot automatically if needed. (Note: this requires “rebootIfRequired” flag to be added to the config file. See Creating a Golden config file on page 7-213. Configuration Steps Procedure 23 Zero Touch Configuration steps 1 Create the golden config file(s) 2 Host it on an TFTP/FTP/HTTP/HTTPS server 3 Configure the DHCP server to return the URL of the golden config file in option 66 When the SM boots up, it will get the URL for the golden config from the DHCP server via option 66, download it and apply it. If all the SMs are configured exactly the same, then you can create just new golden config file that can be used with all SMs. If the SMs are not configured the same, see if it is possible to group the SMs such that SMs with the same configuration are served by the same DHCP pool. User can then create multiple golden config files and configure the DHCP server to use the appropriate config file for each pool. User can also create one config file per SM. This provides the most flexibility, but is practical only if you have a software tool/script to generate the config files for each MAC address. The files should be named <mac>.cfg where <mac> is the MAC address of the SM, and stored in the same directory on the file server. The DHCP server should be configured to return the directory name ending with a ‘/’ in option 66. The SM will automatically add “<mac>.cfg” to the path and get its config file.
Chapter 7: Configuration Zero Touch Configuration Using DHCP Option 66 Page 7-214 If some configuration is unique per SM, but rest of the configuration is common, the SMs can be staged with the unique part, and use option 66 to manage the common part. For example, if each SM needs to have its coordinates set, don’t include the coordinates in the golden config file. Instead, configure the coordinates for each SM manually. Manage the rest of the configuration using DHCP option 66. Creating a Golden config file The easiest way to create the golden config file is to configure an SM, export its configuration and edit it. To export the configuration file from the GUI of the SM, go to “Configuration > Unit Settings” tab, go to the “Download Configuration File” section and click on the “<mac>.cfg” link. This will give you a text file in JSON format. You can edit this file in a text editor but it’s easier to use a JSON editor like https://www.jsoneditoronline.org/. Strip down the config file to remove sections and entries that don’t care about, and keep only the items that require changes. If there are many required changes, it can easily get confusing. To identify the exact items changes, first reset the SM to factory default, export the config file, make the necessary changes, export a second config file, then use a tool like WinMerge (http://winmerge.org/) to identify the differences. The config file contains the following informational entries at the top level. “cfgUtcTimestamp”: “cfgUtcTimestamp”, “swVersion”: “CANOPY 15.1 SM-AES”, “cfgFileString”: “Canopy configuration file”, “srcMacAddress”: “0a-00-3e-a2-c2-74”, “deviceType”: “5.4/5.7GHz MIMO OFDM - Subscriber Module”, “cfgFileVersion”: “1.0” The “cfgUtcTimestamp”, “swVersion”, “srcMacAddress” and “deviceType” lines can be deleted. Do not delete the “cfgFileString” and “cfgFileVersion” entries. Next, create an object named “configFileParameters” at the top level. Under that, add a parameter called “rebootIfRequired” and set it to true. This tells the SM to reboot automatically if a reboot is needed to apply the new configuration. A sample configuration file that has been edited for use via DHCP option 66 is given below. { “userParameters”: { “smNetworkConfig”: { “networkAccess”: 1 }, “location”: { “siteName”: “Test site” }, “smRadioConfig”: { “frequencyScanList”: [
Chapter 7: Configuration Zero Touch Configuration Using DHCP Option 66 Page 7-215 5475000, 5480000 ], “colorCodeList”: [ { “colorCode”: 42, “priority”: 1 } ] }, “networkConfig”: { “lanDhcpState”: 1 } }, “cfgFileVersion”: “1.0”, “cfgFileString”: “Canopy configuration file”, “configFileParameters”: { “rebootIfRequired”: true } } When configuration is imported, only the items that exist in the configuration file are modified. Parameters that are not in the imported file are not changed. If user wish to revert those settings to their factory default values, please add a “setToDefaults” item under “configFileParameters” section with a value of true. “cfgFileVersion”: “1.0”, “cfgFileString”: “Canopy configuration file”, “configFileParameters”: { “rebootIfRequired”: true, “setToDefaults”: true } In case, the SM needs to fetch the configuration file on each boot up even when not connecting to AP via ICC, set “Network Accessibility” to “Public” and “DHCP State” to “Enabled” in the “Configuration > IP” page before exporting the configuration. Hosting the config file Copy the golden configuration file to an FTP, TFTP, HTTP or HTTPS server. This location can be password protected; you just have to include the user name and password in the URL. DHCP server configuration Configure DHCP server to return the full URL to the golden config file as the value of DHCP option 66. The following example explains how to make the change for Windows Server 2008. Adapt it to your specific DHCP server.
Chapter 7: Configuration Zero Touch Configuration Using DHCP Option 66 Page 7-216 Procedure 24 DHCP server configuration 1 Click “Start > Administrative Tools > DHCP” 2 If you have multiple “Scopes” defined, identify the correct “Scope” that will serve IP addresses for the SMs 3 Right click on “Scope Option” under the correct “Scope” and select “Configure Options”
Chapter 7: Configuration Zero Touch Configuration Using DHCP Option 66 Page 7-217 4 In the “Scope Options” dialog, scroll down to “066 Boot Server Host Name”, select the checkbox and enter the full URL to the golden config file as the “String value”. Then click “OK”. 5 In the DHCP snap-in window, right click and “Refresh” to see the DHCP option 66 in the list of DHCP options Supported URL Formats FTP, TFTP, HTTP and HTTPS URLs are supported. Some examples are given below.  ftp://10.120.163.253/canopy.cfg  ftp://admin:admin123@10.120.163.253/canopy.cfg (login as admin with password admin123)  tftp://10.120.163.253/canopy.cfg  http://10.120.163.253/golden-config.cfg  https://10.120.163.253/smconfig/golden-config.cfg User can also specify the URL pointing to a directory and not a specific file. Terminate the URL with a ‘/’ to indicate that it is a directory and not a file. Use this format when each SM has its own individual config file. The directory should contain files named “<mac>.cfg”, one for each SM. For example: ftp://10.120.163.253/smconfig/ In this case, the SM will append “<mac>.cfg” to the path and try to get that file. For example, if the SM’s MAC address is 0a-00-3e-a2-c2-74, it will request for ftp://10.120.163.253/smconfig/0a003ea2c274.cfg. This mechanism can be used to serve individual config file for each SM.
Chapter 7: Configuration Zero Touch Configuration Using DHCP Option 66 Page 7-218 Troubleshooting 1 Ensure that the___14 SM is running 13.3 or newer version of software. 2 If the SM has factory default config, confirm ICC is enabled on the AP, so the SM can connect to it. 3 If the SM is connecting to the AP using a color code other than ICC, make sure the SM has “Network Accessibility” set to “Public” and “DHCP State” set to “Enabled” in the “Configuration > IP” page. 4 Make sure the golden config file does not turn off “Network Accessibility” or “DHCP State”. If it does, the SM will no longer request the config file when it is rebooted. 5 Check the event log of the SM to see the status of the configuration file import including any errors that prevented it from importing the file. 6 Capture the DHCP Offer packet from the DHCP server to the SM and verify that Option 66 has the expected URL.
Chapter 7: Configuration Configuring Radio via config file Page 7-219 Configuring Radio via config file The 450 Platform Family supports export and import of a configuration file from the AP or SM as a text file. The configuration file is in JSON format. To export or import the configuration file, the logged in user needs to be an ADMINISTRATOR and it must not be a “read-only” account. The exported configuration file contains the complete configuration including all the default values. To keep a backup of the current configuration, the file can be saved as-is and imported later. While importing a configuration file, it can be either imported the full configuration or a sparse configuration containing only the items that need to be changed. If a sparse configuration file is imported, only the items in the file will be imported. Other configuration will remain unchanged. There could also be used a special flag in the configuration file to tell the device to apply the configuration starting from factory default (Refer Special Headers for configuration file on page 7-219). Import and Export of config file The config file import and export is supported in Configuration > Unit Settings page. The procedure for importing and exporting config file is explained below. Figure 154 Configuration File upload and download page The DHCP server configuration procedure is as follows: Procedure 25 DHCP server configuration 1 Login to the GUI and go to Configuration > Unit Settings. 2 Under Download Configuration File tab, click on the “<mac>.cfg” link, where <mac> is the MAC address of the device (for example, “01003ea2c274.cfg”). 3 Save the file to the local disk. The below procedure is to be followed for Importing a config file Procedure 26 Import the configuration from the GUI 1 Login to the GUI and go to Configuration → Unit Settings.
Chapter 7: Configuration Configuring Radio via config file Page 7-220 2 Click on “Browse” button under “Upload and Apply Configuration File” tab and select the configuration file from disk. 3 Click “Upload” followed by “Apply Configuration File” button click. 4 The “Status of Configuration File” section will show the results of the upload. 5 Review it to make sure there are no errors. Then click on “Reboot” to reboot with the imported configuration The special headers for config file is explained below: Procedure 27 Special Headers for configuration file 1 A “configFileParameters” section can be added to the header to control the behavior of the device when importing configuration. 2 The “setToDefaults” when set to “true” tell the device to reset to factory default configuration and apply the configuration in the file on top of that. So any attribute not in the configuration file will be set to its factory default value. By default, the configuration in the file is merged with the existing configuration on the device. The “rebootIfRequired” flag when set to “true” tell the device to reboot automatically if needed to apply the configuration change. By default, the device will not reboot automatically. { “cfgFileString”: “Canopy configuration file”, “cfgFileVersion”: “1.0”, “configFileParameters”: { “setToDefaults”:true, “rebootIfRequired”:true, } }
Chapter 7: Configuration Configuring cnMaestroTM Connectivity Page 7-221 Configuring cnMaestroTM Connectivity 450 Platform Family network can be onboarded, configured and managed using cnMaestro™ Cloud or On Premises Server. Onboarding Onboarding can be done in one of several ways:  Using Cambium ID and Onboarding key  Using Manufacturer’s Serial Number (Only if it starts with an “M” and is 12 characters long)  On Premises Zero Touch onboarding of AP/SM using DHCP option 43 and 15  PMP SM Zero touch onboarding to the cnMaestro server where PMP AP is onboarded. To configure the PMP devices, enable Remote Management under Configuration->cnMaestro as shown in Table 181. Table 181 Configuring cnMaestro Attribute Meaning Remote Management This field enables/disables remote management of 450 Platform Family products. cnMaestro URL This field allows to enter cnMaestro URL e.g. https://cloud.cambiumnetworks.com Or cnMaestro on premises URL Connection Status This field indicates cnMaestro connectivity status. Cambium ID This field allows to enter Cambium ID for onboarding 450 Platform devices. Onboarding Key This field allows to enter Onboarding Key for onboarding. AccountID This field indicates Account ID of the customer. Device Agent Version This field shows device agent version.
Chapter 7: Configuration Configuring cnMaestroTM Connectivity Page 7-222 Prerequisites for onboarding to cnMaestro™  Devices types must be PMP 450m Series, PMP/PTP 450 Series, PMP/PTP 450i/450b Series or PMP 430 Series SMs (interoperability mode only).  Minimum required software version of 14.2.1. Device software images can be downloaded from http://support.cambiumnetworks.com or from the On Premises cnMaestro server by navigating to Operate >Software Update->Manage Images. Select  Device type to display the available images and then click the download icon as shown in Figure 155. Figure 155 Software Upgrade from cnMaestro™  IP connectivity between PMP Device and the cnMaestro server is established. Ensure Port 443 is open in the firewall as this port is used for secure communication between the PMP device and the cnMaestro server through web sockets. In addition, if the PMP device and cnMaestro™ server are on different subnets, proper routes should be established for communication.  For PMP AP, a valid DNS setting is required so that the AP will be able to resolve the cnMaestro URL. DNS settings can be verified by performing a DNS lookup under Tools->DNS Test on the AP as shown in Figure 156.
Chapter 7: Configuration Configuring cnMaestroTM Connectivity Page 7-223 Figure 156 DNS Test for cnMaestro™ connectivity  If the SM is in Bridge mode, then LAN1 must have public 7-223equest7-223ility with a public IP assigned and corresponding DNS setting.  If the SM is in NAT mode, then Remote Management should be enabled with the standalone configuration option and DNS settings. Knowledge Based articles for onboarding For onboarding the devices to cloud server and troubleshooting the onboarding issues in cloud server please see the following link: http://community.cambiumnetworks.com/t5/cnMaestro/Device-On-boarding/td-p/51484 For onboarding the devices to on Premises server and configuring the DHCP server options for on boarding please see the following link: http://community.cambiumnetworks.com/t5/cnMaestro/Device-Onboarding-and-Linux-DHCP-Options-for-cnMaestro-On/m-p/55187#U55187 Order of Device Onboarding The device discovery order is as follows in On Permises cnMaestro™ Server. If any of the options is not configured, the discovery method will fallback to the next option: 1. Static cnMaestro URL 2. Zero Touch token (on boarding of PMP SMs when the corresponding AP is on boarded) 3. DHCP Option 43 4. DHCP Option 15 5. https://cloud.cambiumnetworks.com
Chapter 7: Configuration Configuring cnMaestroTM Connectivity Page 7-224 Device Agent Logs For debugging any onboarding issues please check the device agent logs by navigating to Logs->Device Agent Logs on the PMP device GUI as shown in Figure 157. In addition, a tech support dump can for the PMP device can be obtained from cnMaestro™ by navigating to Monitor->Tools menu after selecting the particular PMP device in the tree and clicking the tech support file icon. This can be send to Cambium support for further troubleshooting. Figure 157 Device Agent Logs Monitoring Tools for PMP Devices on cnMaestro™ cnMaestro™ as of this release offers several debugging tools for PMP devices. Some examples are:  Pictorial view of network hierarchy  Device status  Tech support file  Throughput  Alarms  Reboot  Debug Logs  Network connectivity – ping and DNS lookup
Chapter 7: Configuration Configuring cnMaestroTM Connectivity Page 7-225 Figure 158 Example cnMaestro™ screenshot For more information on these tools please see http://community.cambiumnetworks.com/t5/cnMaestro/How-to-use-the-cnMaestro-Tools-for-Troubleshooting-Device-or/m-p/54503#U54503 Zero Touch on boarding of the PMP SMs when the corresponding AP is on boarded First a link should be established between the PMP AP and SM either by configuring manually or using the ICC. Once the AP and SM link is established, the AP must be onboarded to cnMaestro™ using one of several ways detailed above under the Onboarding section. Once the AP is onboarded to cnMaestro™ Cloud or On premises cnMaestro™server, the SMs under the AP will automatically onboard to cnMaestro™ using a Zero touch token that is communicated between the AP and SMs. This is applicable to existing SMs registered to the AP as well as new SMs registering to the AP for the first time. The SMs appear on the onboarding queue of cnMaestro™ and the operator must “Approve” the devices in order to manage them. The following operations for PMP Devices are available on cnMaestro™  Monitor the device details in the Dashboard page by navigating to the Monitor >Dashboard menu and selecting the PMP AP/SM in the tree.  Monitor notifications related to the PMP AP/SM by navigating to the Monitor >Notifications Menu and selecting the PMP AP/SM in the tree.  Monitor device statistics on the statistics page by navigating to the Monitor >Statistics menu and selecting the PMP AP/SM in the tree, then selecting the PMP AP or PMP SM in the Device type dropdown.  Monitor Performance graphs related to the PMP AP/SM by navigating to the Monitor >Performance menu and selecting the required performance graph (i.e Throughput, SMs, Modulation) and selecting the PMP AP/SM in the tree.  Troubleshoot the device on the Troubleshooting page by navigating to the Monitor >Tools menu and selecting the PMP AP/SM in the tree.
Chapter 7: Configuration Configuring cnMaestroTM Connectivity Page 7-226  Configure the devices by navigating to the Configure >Devices menu and selecting the PMP AP/SM in the tree and selecting the config template that needs to be pushed to the device. Configuration templates need to be created before the configuration can be pushed to the device. The template can be created by copying the existing configuration from the view device configuration link provided in the same page and then modifying the template as needed and then pushing to the same device or other similar devices. Template needs to be properly reviewed for IP Address and other critical parameters to avoid stranding SMs (resulting in a truck roll) by pushing an incorrect configuration. Configuration templates can be created by navigating to the Configure->Templates page and selecting the PMP device type while creating the template.  Once on 14.2.1, PMP devices can be upgraded to future supported versions from cnMaestro™ by navigating to the Operate > Software Update page and selecting the “PMP Sectors” option from the device type drop down and the version to which the device needs to be upgraded. It is recommended to upgrade the AP first, then the SMs.  PMP Device Inventory details can be reviewed by navigating to the Monitor >Inventory page.
Chapter 7: Configuration Configuring a RADIUS server Page 7-227 Configuring a RADIUS server Configuring a RADIUS server in a PMP 450 Platform network is optional, but can provide added security, increase ease of network management and provide usage-based billing data. Understanding RADIUS for PMP 450 Platform Family PMP 450 Platform modules include support for the RADIUS (Remote Authentication Dial In User Service) protocol supporting Authentication and Accounting. RADIUS Functions RADIUS protocol support provides the following functions:  SM Authentication allows only known SMs onto the network (blocking “rogue” SMs), and can be configured to ensure SMs are connecting to a known network (preventing SMs from connecting to “rogue” APs). RADIUS authentication is used for SMs, but is not used for APs.  SM Configuration: Configures authenticated SMs with MIR (Maximum Information Rate), CIR (Committed Information Rate), High Priority, and VLAN (Virtual LAN) parameters from the RADIUS server when a SM registers to an AP.  User Authentication allows users to configure a separate User authentication server along with the SM authentication server. If firmware is upgraded while using this functionality and no User authentication servers are configured, then AP continues to use the SM authentication server for User authentication  SM Accounting provides support for RADIUS accounting messages for usage-based billing. This accounting includes indications for subscriber session establishment, subscriber session disconnection, and bandwidth usage per session for each SM that connects to the AP.  Centralized AP and SM user name and password management allows AP and SM usernames and access levels (Administrator, Installer, Technician) to be centrally administered in the RADIUS server instead of on each radio and tracks access events (logon/logoff) for each username on the RADIUS server. This accounting does not track and report specific configuration actions performed on radios or pull statistics such as bit counts from the radios. Such functions require an Element Management System (EMS) such as Cambium Networks Wireless Manager. This accounting is not the ability to perform accounting functions on the subscriber/end user/customer account.  Framed IP allows operators to use a RADIUS server to assign management IP addressing to SM modules (framed IP address). Tested RADIUS Servers The Canopy RADIUS implementation has been tested and is supported on  FreeRADIUS, Version 2.1.8  Aradial RADIUS, Version 5.1.12  Microsoft RADIUS (Windows Server 2012 R2 version)  Cisco ACS, Version 5.7.0.15
Chapter 7: Configuration Configuring a RADIUS server Page 7-228 Note Aradial 5.3 has a bug that prevents “remote device login”, so doesn’t support the user name and password management feature. Choosing Authentication Mode and Configuring for Authentication Servers - AP On the AP’s Configuration > Security tab, select the RADIUS AAA Authentication Mode. The following describes the other Authentication Mode options for reference, and then the RADIUS AAA option.  Disabled: Requires no authentication. Any SM (except a SM that itself has been configured to require RADIUS authentication by enabling Enforce Authentication as described below) is allowed to register to the AP.  Authentication Server: Authentication Server in this instance refers to Wireless Manager in BAM-only mode. Authentication is required for a SM to register to the AP. Only SMs listed by MAC address in the Wireless Manager database is allowed to register to the AP.  AP Pre-Shared Key: Canopy offers a pre-shared key authentication option. In this case, an identical key must be entered in the Authentication Key field on the AP’s Configuration > Security tab and in the Authentication Key field on each desired SM’s Configuration > Security tab.  RADIUS AAA: To support RADIUS authentication of SMs, on the AP’s Configuration > Security tab select RADIUS AAA. Only properly configured SMs with a valid certificate is allowed to register to the AP. When RADIUS AAA is selected, up to 3 Authentication Server (RADIUS Server) IP addresses and Shared Secrets can be configured. The IP address(s) configured here must match the IP address(s) of the RADIUS server(s). The shared secret(s) configured here must match the shared secret(s) configured in the RADIUS server(s). Servers 2 and 3 are meant for backup and reliability, not splitting the database. If Server 1 doesn’t respond, Server 2 is tried, and then server 3. If Server 1 rejects authentication, the SM is denied entry to the network, and does not progress trying the other servers. The default IP address is 0.0.0.0. The default Shared Secret is “CanopySharedSecret”. The Shared Secret can be up to 32 ASCII characters (no diacritical marks or ligatures, for example).
Chapter 7: Configuration Configuring a RADIUS server Page 7-229 Table 182 Security tab attributes
Chapter 7: Configuration Configuring a RADIUS server Page 7-230 Attribute Meaning Authentication Mode Operators may use this field to select the following authentication modes: Disabled—the AP requires no SMs to authenticate. Authentication Server —the AP requires any SM that attempts registration to be authenticated in Wireless Manager before registration. AP PreShared Key - The AP acts as the authentication server to its SMs and will make use of a user-configurable pre-shared authentication key. The operator enters this key on both the AP and all SMs desired to register to that AP. There is also an option of leaving the AP and SMs at their default setting of using the “Default Key”. Due to the nature of the authentication operation, if you want to set a specific authentication key, then you MUST configure the key on all of the SMs and reboot them BEFORE enabling the key and option on the AP. Otherwise, if you configure the AP first, none of the SMs is able to register. RADIUS AAA - When RADIUS AAA is selected, up to 3 Authentication Server (RADIUS Server) IP addresses and Shared Secrets can be configured. The IP address(s) configured here must match the IP address(s) of the RADIUS server(s). The shared secret(s) configured here must match the shared secret(s) configured in the RADIUS server(s). Servers 2 and 3 are meant for backup and reliability, not for splitting the database. If Server 1 doesn’t respond, Server 2 is tried, and then server 3. If Server 1 rejects authentication, the SM is denied entry to the network and does not progress trying the other servers. Authentication Server DNS Usage The management DNS domain name may be toggled such that the name of the authentication server only needs to be specified and the DNS domain name is automatically appended to that name. Authentication Server 1 Enter the IP address or server name of the authentication server (RADIUS or WM) and the Shared Secret configured in the authentication server. When Authentication Mode RADIUS AAA is selected, the default value of Shared Secret is “CanopySharedSecret”. The Shared Secret may consist of up to 32 ASCII characters. Authentication Server 2 Authentication Server 3 Authentication Server 4 (BAM Only) Authentication Server 5 (BAM Only) Radius Port This field allows the operator to configure a custom port for RADIUS server communication. The default value is 1812. Authentication Key The authentication key is a 32-character hexadecimal string used when Authentication Mode is set to AP Pre-Shared Key. By default, this key is set to 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF. Selection Key This option allows operators to choose which authentication key is used:
Chapter 7: Configuration Configuring a RADIUS server Page 7-231 Use Key above means that the key specified in Authentication Key is used for authentication Use Default Key means that a default key (based off of the SM’s MAC address) is used for authentication Encryption Key Specify the type of airlink security to apply to this AP. The encryption setting must match the encryption setting of the SMs. None provides no encryption on the air link. DES (Data Encryption Standard): An over-the-air link encryption option that uses secret 56-bit keys and 8 parity bits. DES performs a series of bit permutations, substitutions, and recombination operations on blocks of data. DES encryption does not affect the performance or throughput of the system. AES (Advanced Encryption Standard): An over-the-air link encryption option that uses the Rijndael algorithm and 128-bit keys to establish a higher level of security than DES. AES products are certified as compliant with the Federal Information Processing Standards (FIPS 197) in the U.S.A. SM Display of AP Evaluation Data You can use this field to suppress the display of data about this AP on the AP Evaluation tab of the Tools page in all SMs that register. Web, Telnet, FTP Session Timeout Enter the expiry in seconds for remote management sessions via HTTP, telnet, or ftp access to the AP. IP Access Control You can permit access to the AP from any IP address (IP Access Filtering Disabled) or limit it to access from only one, two, or three IP addresses that you specify (IP Access Filtering Enabled). If you select IP Access Filtering Enabled, then you must populate at least one of the three Allowed Source IP parameters or have no access permitted from any IP address Allowed Source IP 1 If you selected IP Access Filtering Enabled for the IP Access Control parameter, then you must populate at least one of the three Allowed Source IP parameters or have no access permitted to the AP from any IP address. You may populate as many as all three. Allowed Source IP 2 If you selected IP Access Filtering Disabled for the IP Access Control parameter, then no entries in this parameter are read, and access from all IP addresses is permitted. Allowed Source IP 3 Web Access The Radio supports secured and non-secured web access protocols. Select suitable web access from drop down list:  HTTP Only – provides non-secured web access. The radio to be accessed via http://<IP of Radio>.  HTTPS Only – provides a secured web access. The radio to be accessed via https1://<IP of Radio>.  HTTP and HTTPS – If enabled, the radio can be accessed via both http and https. SNMP This option allows to configure SNMP agent communication version. It can be selected from drop down list :  SNMPv2c Only – Enables SNMP v2 community protocol.
Chapter 7: Configuration Configuring a RADIUS server Page 7-232  SNMPv3 Only – Enables SNMP v3 protocol. It is secured communication protocol.  SNMPv2c and SNMPv3 – It enables both the protocols. Telnet This option allows to Enable and Disable Telnet access to the Radio. FTP This option allows to Enable and Disable FTP access to the Radio. TFTP This option allows to Enable and Disable TFTP access to the Radio.
Chapter 7: Configuration Configuring a RADIUS server Page 7-233 SM Authentication Mode – Require RADIUS or Follow AP If it is desired that a SM will only authenticate to an AP that is using RADIUS, on the SM’s Configuration Security tab set Enforce Authentication to AAA. With this enabled, SM does not register to an AP that has any Authentication Mode other than RADIUS AAA selected. If it is desired that a SM use the authentication method configured on the AP it is registering to, set Enforce Authentication to Disabled. With Enforce Authentication disabled, a SM will attempt to register using whichever Authentication Mode is configured on the AP it is attempting to register to. Note Having SMs to use RADIUS by enabling Enforce Authentication avoids the security issue of SMs possibly registering to “rogue” APs, which have authentication disabled. Table 183 SM Security tab attributes
Chapter 7: Configuration Configuring a RADIUS server Page 7-234 Attribute Meaning Authentication Key The authentication key is a 32-character hexadecimal string used when Authentication Mode is set to AP PreShared Key. By default, this key is set to 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF. Select Key This option allows operators to choose which authentication key is used: Use Key above means that the key specified in Authentication Key is used for authentication Use Default Key means that a default key (based off of the SM’s MAC address) is used for authentication Enforce Authentication The SM may enforce authentication types of AAA and AP Pre-sharedKey. The SM will not finish the registration process if the AP is not using the configured authentication method (and the SM locks out the AP for 15 minutes). Enforce Authentication default setting is Disable. Phase 1 The protocols supported for the Phase 1 (Outside Identity) phase of authentication are EAPTTLS (Extensible Authentication Protocol Tunneled Transport Layer Security) or MSCHAPv2 (Microsoft Challenge-Handshake Authentication Protocol version 2). Phase 2 Select the desired Phase 2 (Inside Identity) authentication protocol from the Phase 2 options of PAP (Password Authentication Protocol), CHAP (Challenge Handshake Authentication Protocol), and MSCHAP (Microsoft’s version of CHAP, version 2 is used). The protocol must be consistent with the authentication protocol configured on the RADIUS server.
Chapter 7: Configuration Configuring a RADIUS server Page 7-235 Identity/Realm If Realms are being used, select Enable Realm and configure an outer identity in the Identity field and a Realm in the Realm field. These must match the Phase 1/Outer Identity and Realm configured in the RADIUS server. The default Identity is “anonymous”. The Identity can be up to 128 non-special (no diacritical markings) alphanumeric characters. The default Realm is “canopy.net”. The Realm can also be up to 128 non-special alphanumeric characters. Configure an outer Identity in the Username field. This must match the Phase 1/Outer Identity username configured in the RADIUS server. The default Phase 1/Outer Identity Username is “anonymous”. The Username can be up to 128 non-special (no diacritical markings) alphanumeric characters. Username Enter a Username for the SM. This must match the username configured for the SM on the RADIUS server. The default Username is the SM’s MAC address. The Username can be up to 128 non-special (no diacritical markings) alphanumeric characters. Password Enter the desired password for the SM in the Password and Confirm Password fields. The Password must match the password configured for the SM on the RADIUS server. The default Password is “password”. The Password can be up to 128 non-special (no diacritical markings) alphanumeric characters. Confirm Password Upload Certificate File To upload a certificate manually to a SM, first load it in a known place on your PC or network drive, then click on a Delete button on one of the Certificate description blocks to delete a certificate to provide space for your certificate. Click on Choose File, browse to the location of the certificate, and click the Import Certificate button, and then reboot the radio to use the new certificate. When a certificate is in use, after the SM successfully registers to an AP, an indication of In Use will appear in the description block of the certificate being used. The public certificates installed on the SMs are used with the private certificate on the RADIUS server to provide a public/private key encryption system. Up to 2 certificates can be resident on a SM. An installed certificate can be deleted by clicking the Delete button in the certificate’s description block on the Configuration > Security tab. To restore the 2 default certificates, click the Use Default Certificates button in the RADIUS Certificate Settings parameter block and reboot the radio.
Chapter 7: Configuration Configuring a RADIUS server Page 7-236 Encryption Setting Specify the type of airlink security to apply to this AP. The encryption setting must match the encryption setting of the SMs. None provides no encryption on the air link. DES (Data Encryption Standard): An over-the-air link encryption option that uses secret 56-bit keys and 8 parity bits. DES performs a series of bit permutations, substitutions, and recombination operations on blocks of data. DES encryption does not affect the performance or throughput of the system. AES (Advanced Encryption Standard): An over-the-air link encryption option that uses the Rijndael algorithm and 128-bit keys to establish a higher level of security than DES. AES products are certified as compliant with the Federal Information Processing Standards (FIPS 197) in the U.S.A. Web, Telnet, FTP Session Timeout Enter the expiry in seconds for remote management sessions via HTTP, telnet or ftp access to the AP. Ethernet Access If you want to prevent any device that is connected to the Ethernet port of the SM from accessing the management interface of the SM, select Ethernet Access Disabled. This selection disables access through this port to via HTTP (the GUI), SNMP, telnet, FTP, and TFTP. With this selection, management access is available through only the RF interface via either an IP address (if Network Accessibility is set to Public on the SM) or the Session Status or Remote Subscribers tab of the AP. See IP Access Control below. If you want to allow management access through the Ethernet port, select Ethernet Access Enabled. This is the factory default setting for this parameter. IP Access Control You can permit access to the AP from any IP address (IP Access Filtering Disabled) or limit it to access from only one, two, or three IP addresses that you specify (IP Access Filtering Enabled). If you select IP Access Filtering Enabled, then you must populate at least one of the three Allowed Source IP parameters or have no access permitted from any IP address Allowed Source IP 1 If you selected IP Access Filtering Enabled for the IP Access Control parameter, then you must populate at least one of the three Allowed Source IP parameters or have no access permitted to the AP from any IP address. You may populate as many as all three. If you selected IP Access Filtering Disabled for the IP Access Control parameter, then no entries in this parameter are read, and access from all IP addresses is permitted. Allowed Source IP 2 Allowed Source IP 3 Web Access The Radio supports secured and non-secured web access protocols. Select suitable web access from drop down list:  HTTP Only – provides non-secured web access. The radio to be accessed via http://<IP of Radio>.  HTTPS Only – provides a secured web access. The radio to be accessed via https://<IP of Radio>.
Chapter 7: Configuration Configuring a RADIUS server Page 7-237  HTTP and HTTPS – If enabled, the radio can be accessed via both http and https. SNMP This option allows to configure SNMP agent communication version. It can be selected from drop down list :  SNMPv2c Only – Enables SNMP v2 community protocol.  SNMPv3 Only – Enables SNMP v3 protocol. It is secured communication protocol.  SNMPv2c and SNMPv3 – It enables both the protocols. Telnet This option allows to Enable and Disable Telnet access to the Radio. FTP This option allows to Enable and Disable FTP access to the Radio. TFTP This option allows to Enable and Disable TFTP access to the Radio. SM - Phase 1 (Outside Identity) parameters and settings The protocols supported for the Phase 1 (Outside Identity) phase of authentication are eapttls (Extensible Authentication Protocol Tunneled Transport Layer Security) and eapMSChapV2 (Extensible Authentication Protocol – Microsoft Challenge-Handshake Authentication Protocol). Configure an outer Identity in the Username field. This must match the Phase 1/Outer Identity username configured in the RADIUS server. The default Phase 1/Outer Identity Username is “anonymous”. The Username can be up to 128 non-special (no diacritical markings) alphanumeric characters. If Realms are being used in the RADIUS system (eapttls only), select Enable Realm and configure an outer identity in the Identity field and a Realm in the Realm field. These must match the Phase 1/Outer Identity and Realm configured in the RADIUS server. The default Identity is “anonymous”. The Identity can be up to 128 non-special (no diacritical markings) alphanumeric characters. The default Realm is “canopy.net”. The Realm can also be up to 128 non-special alphanumeric characters. SM - Phase 2 (Inside Identity) parameters and settings If using eapttls for Phase 1 authentication, select the desired Phase 2 (Inside Identity) authentication protocol from the Phase 2 options of PAP (Password Authentication Protocol), CHAP (Challenge Handshake Authentication Protocol), and MSCHAPv2 (Microsoft’s version of CHAP). The protocol must be consistent with the authentication protocol configured on the RADIUS server. Enter a Username for the SM. This must match the username configured for the SM on the RADIUS server. The default Username is the SM’s MAC address. The Username can be up to 128 non-special (no diacritical markings) alphanumeric characters. Enter the desired password for the SM in the Password and Confirm Password fields. The Password must match the password configured for the SM on the RADIUS server. The default Password is “password”. The Password can be up to 128 non-special (no diacritical markings) alphanumeric characters.
Chapter 7: Configuration Configuring a RADIUS server Page 7-238 Handling Certificates Managing SM Certificates via the SM GUI The default public Canopy certificates are loaded into SMs upon factory software installation. The default certificates are not secure and are intended for use during lab and field trials as part of gaining experience with the RADIUS functionalities or as an option during debug. For secure operation, an operator will want to create or procure their own certificates. Resetting a SM to its factory defaults will remove the current certificates and restore the default certificates. Up to two certificates can be resident on a SM. An installed certificate can be deleted by clicking the Delete button in the certificate’s description block on the Configuration > Security tab. To restore the 2 default certificates, click the Use Default Certificates button in the RADIUS Certificate Settings parameter block and reboot the radio. To upload a certificate manually to a SM, first load it in a known place on your PC or network drive, then click on a Delete button on one of the Certificate description blocks to delete a certificate to provide space for your certificate. Click on Choose File, browse to the location of the certificate, and click the Import Certificate button, and then reboot the radio to use the new certificate. When a certificate is in use, after the SM successfully registers to an AP, an indication of In Use will appear in the description block of the certificate being used. The public certificates installed on the SMs are used with the private certificate on the RADIUS server to provide a public/private key encryption system. Note Root certificates of more than one level (Example - a certificate from someone who received their CA from Verisign) fails. Certificates must be either root or self-signed. 
Chapter 7: Configuration Configuring a RADIUS server Page 7-239 Figure 159 SM Certificate Management Configuring RADIUS servers for SM authentication Your RADIUS server must be configured to use the following:  EAPTTLS or MSCHAPv2 as the Phase 1/Outer Identity protocol.  If Enable Realm is selected on the SM’s Configuration > Security tab, then the same Realm appears there (or access to it).  The same Phase 2 (Inner Identity) protocol as configured on the SM’s Configuration > Security tab under Phase 2 options.  The username and password for each SM configured on each SM’s Configuration > Security tab.  An IP address and NAS shared secret that is the same as the IP address and Shared Secret configured on the AP’s Configuration > Security tab for that RADIUS server.
Chapter 7: Configuration Configuring a RADIUS server Page 7-240  A server private certificate, server key, and CA certificate that complement the public certificates distributed to the SMs, as well as the Canopy dictionary file that defines Vendor Specific Attributes (VSAa). Default certificate files and the dictionary file are available from the software site: https://support.cambiumnetworks.com/files/pmp450 after entering your name, email address, and either Customer Contract Number or the MAC address of a module covered under the 12 month warranty. Optionally, operators may configure the RADIUS server response messages (Accept or Reject) so that the user has information as to why they have been rejected. The AP displays the RADIUS Authentication Reply message strings in the Session Status list as part of each SM’s information. The SM will show this string (listed as Authentication Response on the SM GUI) on the main Status page in the Subscriber Module Stats section. Note Aradial AAA servers only support operator-configurable Authentication Accept responses, not Authentication Reject responses.
Chapter 7: Configuration Configuring a RADIUS server Page 7-241 Assigning SM management IP addressing via RADIUS Operators may use a RADIUS AAA server to assign management IP addressing to SM modules (framed IP address). SMs now interpret attributes Framed-IP-Address, Framed-IP-Netmask, and Cambium-Canopy-Gateway from RADIUS. The RADIUS dictionary file has been updated to include the Cambium-Canopy-Gateway attribute and is available on the Cambium Software Support website. In order for these attributes to be assigned and used by the SM, the following must be true:  The system is configured for AAA authentication  The SM is not configured for DHCP on its management interface. If DHCP is enabled and these attributes are configured in the RADIUS server, the attributes is ignored by the SM.  The SM management interface must be configured to be publically accessible. If the SM is configured to have local accessibility, the management interface will still be assigned the framed addressing, and the SM iscome publicly accessible via the assigned framed IP addressing.  When using these attributes, for the addressing to be implemented by the SM operators must configure Framed-IP-Address in RADIUS. If Framed-IP-Address is not configured but Framed-IP-Netmask and/or Cambium-Canopy-Gateway is configured, the attributes is ignored. In the case where only the Framed-IP-Address is configured, Framed-IP-Netmask defaults to 255.255.0.0 (NAT disabled) / 255.255.255.0 (NAT enabled) and Cambium-Canopy-Gateway defaults to 0.0.0.0. Configuring RADIUS server for SM configuration Canopy Vendor Specific Attributes (VSAs) along with VSA numbers and other details are listed in Table 184. The associated SM GUI page, tab and parameter are listed to aid cross-referencing and understanding of the VSAs. A RADIUS dictionary file is available from the software site: https://support.cambiumnetworks.com/files/pmp450 The RADIUS dictionary file defines the VSAs and their values and is usually imported into the RADIUS server as part of server and database setup.
Chapter 7: Configuration Configuring a RADIUS server Page 7-242 Note Beginning with System Release 12.0.2, two RADIUS dictionary files are available on the Cambium website – “RADIUS Dictionary file – Cambium” and “RADIUS Dictionary file – Motorola”. In addition to a renaming of attributes, the Cambium-branded dictionary file contains two new VSAs for controlling uplink and downlink Maximum Burst Data Rate (these VSAs are listed below in Table 184). If you are transitioning from the Motorola-branded dictionary file to the Cambium-branded dictionary file, ensure that all RADIUS profiles containing Motorola-Canopy attribute references are updated to include Cambium-Canopy attribute references (for all applicable VSAs listed in Table 184). Also, ensure that all RADIUS configuration files reference the new dictionary file (as an alternative, operators may rename the Cambium-branded dictionary file to the filename currently in use by the RADIUS server). Once the profiles are updated and the new Cambium-branded dictionary file is installed on the RADIUS server, restart the RADIUS server to ensure that the new VSAs and attribute names are enabled. Table 184 RADIUS Vendor Specific Attributes (VSAs) Name Number Type Required Value MS-MPPE-Send-Key* 26.311.16 - Y - - - - MS-MPPE-Recv-Key* 26.311.17 - Y - - - - Cambium-Canopy-LPULCIR 26.161.1 integer N 0-65535 kbps Configuration > Quality of Service > Low Priority Uplink CIR 0 kbps 32 bits Cambium-Canopy-LPDLCIR 26.161.2 integer N 0-65535 kbps Configuration > Quality of Service > Low Priority Downlink CIR 0 kbps 32 bits Cambium-Canopy-HPULCIR 26.161.3 integer N 0-65535 kbps Configuration > Quality of Service > Hi Priority Uplink CIR 0 kbps 32 bits Cambium-Canopy-HPDLCIR 26.161.4 integer N 0-65535 kbps Configuration > Quality of Service > Hi Priority Uplink CIR 0 kbps 32 bits Cambium-Canopy-HPENABLE 26.161.5 integer N 0-disable, 1-enable Configuration > Quality of Service > Hi Priority Channel Enable/Disable 0 32 bits 26.161.6 integer N 0-100000 kbps Configuration > Quality of Service > Sustained Uplink Data Rate dependent on radio feature set 32 bits
Chapter 7: Configuration Configuring a RADIUS server Page 7-243 Cambium-Canopy-ULBL 26.161.7 integer N 0-2500000 kbps Configuration > Quality of Service > Uplink Burst Allocation dependent on radio feature set 32 bits Cambium-Canopy-DLBR 26.161.8 integer N 0-100000 kbps Configuration > Quality of Service > Sustained Downlink Data Rate dependent on radio feature set 32 bits Cambium-Canopy-DLBL 26.161.9 integer N 0-2500000 kbps Configuration > Quality of Service > Downlink Burst Allocation dependent on radio feature set 32 bits Cambium-Canopy-VLLEARNEN 26.161.14 integer N 0-disable, 1-enable Configuration > VLAN > Dynamic Learning 1 32 bits Cambium-Canopy-VLFRAMES 26.161.15 integer N 0-all, 1-tagged, 2-untagged Configuration > VLAN > Allow Frame Types 0 32 bits Cambium-Canopy-VLIDSET 26.161.16 integer N VLAN Membership (1-4094) Configuration > VLAN Membership 0 32 bits Cambium-Canopy-VLAGETO 26.161.20 integer N 5 - 1440 minutes Configuration > VLAN > VLAN Aging Timeout 25 mins 32 bits Cambium-Canopy-VLIGVID 26.161.21 integer N 1 – 4094 Configuration > VLAN > Default Port VID 1 32 bits Cambium-Canopy-VLMGVID 26.161.22 integer N 1 – 4094 Configuration > VLAN > Management VID 1 32 bits Cambium-Canopy-VLSMMGPASS 26.161.23 integer N 0-disable, 1-enable Configuration > VLAN > SM Management VID Pass-through 1 32 bits Cambium-Canopy-BCASTMIR 26.161.24 integer N 0-100000 kbps, 0=disabled Configuration > Quality of Service > Broadcast/Multicast Uplink Data Rate dependent on radio feature set 32 bits Cambium-Canopy-Gateway 26.161.25 ipaddr N - Configuration > IP > Gateway IP Address 0.0.0.0 - Cambium-Canopy-ULMB 26.161.26 integer N 0-100000 kbps Configuration > Quality of Service > Max Burst Uplink Data Rate 0 32 bits
Chapter 7: Configuration Configuring a RADIUS server Page 7-244 Cambium-Canopy-DLMB 26.161.27 integer N 0-100000 kbps Configuration > Quality of Service > Max Burst Downlink Data Rate 0 32 bits Cambium-Canopy-UserLevel 26.161.50 integer N 1-Technician, 2-Installer, 3- Administrator Account > Add User > Level 0 32 bits Cambium-Canopy-DHCP-State 26.161.31 integer N 1-Enable Configuration > IP > DHCP state 1 32 bitsCambium-Canopy-BCASTMIRUNITS 26.161.28 integer N Configuration > QoS > Broadcast Downlink CIR 0 32 bits Cambium-Canopy-ConfigFileImportUrl 26.161.29 string N Configuration > Unit Settings 0 32 bits Cambium-Canopy-ConfigFileExportUrl 26.161.30 string N Configuration > Unit Settings 0 32 bits Cambium-Canopy-UserMode 26.161.51 integer N 1=Read-Only 0=Read-Write Account > Add User > User Mode 0 32 bits (*) Contains key for encrypting packets sent by the NAS to the remote host (for Microsoft Point-to-Point Encryption Protocol). Note VSA numbering: 26 connotes Vendor Specific Attribute, per RFC 2865 26.311 is Microsoft Vendor Code, per IANA
Chapter 7: Configuration Configuring a RADIUS server Page 7-245 Configuring RADIUS server for SM configuration using Zero Touch feature The RADIUS VSA (Vendor Specific Attributes) is updated for Zero Touch feature. This feature enables the ability for a SM to get its configuration via RADIUS VSA. The RADIUS VSA is updated for an URL which points to the configuration file of SM (see Table 184 for list of VSA). The RADIUS will push the vendor specific attribute to SM after successful authentication. The VSA contains URL of config file which will redirect SM to download configuration. If there is any change in SM confirmation, the SM will reboot automatically after applying the configuration. The RADIUS VSA attributes concerning Zero Touch are as follows: VSA Type String Cambium-Canopy-ConfigFileImportUrl (29) string Maximum Length 127 characters. Cambium-Canopy-ConfigFileExportUrl (30) string Maximum Length 127 characters. The updated RADIUS dictionary can be downloaded from below link: https://support.cambiumnetworks.com/files/pmp450/ Note The feature is not applicable to the AP.
Chapter 7: Configuration Configuring a RADIUS server Page 7-246 Using RADIUS for centralized AP and SM user name and password management AP – Technician/Installer/Administrator Authentication To control technician, installer, and administrator access to the AP from a centralized RADIUS server: Procedure 28 Centralized user name and password management for AP 1 Set Authentication Mode on the AP’s Configuration > Security tab to RADIUS AAA 2 Set User Authentication Mode on the AP’s Account > User Authentication tab (the tab only appears after the AP is set to RADIUS authentication) to Remote or Remote then Local.  Local: The local SM is checked for accounts. No centralized RADIUS accounting (access control) is performed.  Remote: Authentication by the centralized RADIUS server is required to gain access to the SM if the SM is registered to an AP that has RADIUS AAA Authentication Mode selected. For up to 2 minutes a test pattern is displayed until the server responds or times out.  Remote then Local: Authentication using the centralized RADIUS server is attempted. If the server sends a reject message, then the setting of Allow Local Login after Reject from AAA determines if the local user database is checked or not. If the configured servers do not respond within 2 minutes, then the local user database is used. The successful login method is displayed in the navigation column of the SM. User administration and authentication separation On the AP, it is possible to configure up to three User Authentication servers, along with their Shared Secret. If none of the User Authentication servers are configured, the AP continues to use SM Authorization servers for User Authentication. If at least one of the IP addresses is configured, all Authentication, Authorization, and Accounting requests now follow the newly configured User Authorization server. To configure separate User Authentication and SM Authentication:
Chapter 7: Configuration Configuring a RADIUS server Page 7-247 Procedure 29 User administration and authentication separation 1 Go to the AP’s Account > User Authentication And Access Tracking tab 2 Set User Authentication Mode to Remote or Remote then Local. 3 Set User Authentication Method to EAP-MD5 or EAP-PEAP-MSCHAPv2 4 Configure the Shared Secrets and IP Addresses of: User Authentication Server 1 User Authentication Server 2 User Authentication Server 3 Note: If none of the above User Authentication servers are configured, only SM authentication will be performed. 5 Under RADIUS Certificate Settings, click Browse to upload the RADIUS Certificate files.
Chapter 7: Configuration Configuring a RADIUS server Page 7-248 Table 185 AP User Authentication and Access Tracking attributes Attribute Meaning User Authentication Mode  Local: The local SM is checked for accounts. No centralized RADIUS accounting (access control) is performed.  Remote: Authentication by the centralized RADIUS server is required to gain access to the AP. For up to 2 minutes a test pattern is displayed until the server responds or times out.
Chapter 7: Configuration Configuring a RADIUS server Page 7-249  Remote then Local: Authentication using the centralized RADIUS server is attempted. If the server sends a reject message, then the setting of Allow Local Login after Reject from AAA determines if the local user database is checked or not. If the configured servers do not respond within 2 minutes, then the local user database is used. The successful login method is displayed in the navigation column of the AP. User Authentication Method The user authentication method employed by the radios:  EAP-MD5  EAP-PEAP-MSCHAPv2 Allow Local Login after Reject from AAA If a user authentication is rejected from the AAA server, the user is allowed to login locally to the radio’s management interface. User Authentication Server 1 The IP address and the shared secret key of the User authentication RADIUS server 1. User Authentication Server 2 The IP address and the shared secret key of the User Authentication Server 2 configured in RADIUS Server. User Authentication Server 3 The IP address and the shared secret key of the User Authentication Server 3 configured in RADIUS Server. RADIUS Certificate Settings Import Cetificate – browse and select the file to be uploaded and click on “Import Certificate” to import a new certificate. Use Default Certificates – use the preloaded default certificates. User Authentication Certificate 1 Cerificate provided by default for User authentication. User Authentication Certificate 2 Cerificate provided by default for User authentication. Radius Accounting Port The destination port on the AAA server used for Radius accounting communication. Accounting Messages disable – no accounting messages are sent to the RADIUS server. deviceAccess – accounting messages regarding device access are sent to the RADIUS server (see Table 187). dataUsage – accounting messages regarding data usage are sent to the RADIUS server (see Table 187). All – accounting messages regarding device access and data usage are sent to the RADIUS server. Accounting Data Usage Interval The interval for which accounting data messages are sent from the radio to the RADIUS server. If 0 is configured for this parameter, no data usage messages are sent. SM Re-authentication Interval The interval for which the SM will re-authenticate to the RADIUS server. Account Status Displays the account status.
Chapter 7: Configuration Configuring a RADIUS server Page 7-250 SM – Technician/Installer/Administrator Authentication The centralized user name and password management for SM is same as AP. Follow AP – Technician/Installer/Administrator Authentication on page 7-245 procedure. Note Remote access control is enabled only after the SM registers to an AP that has Authentication Mode set to RADIUS AAA. Local access control will always be used before registration and is used after registration if the AP is not configured for RADIUS. Figure 160 User Authentication and Access Tracking tab of the SM Table 186 SM User Authentication and Access Tracking attributes Attribute Meaning User Authentication Mode  Local: The local SM is checked for accounts. No centralized RADIUS accounting (access control) is performed.
Chapter 7: Configuration Configuring a RADIUS server Page 7-251  Remote: Authentication by the centralized RADIUS server is required to gain access to the SM if the SM is registered to an AP that has RADIUS AAA Authentication Mode selected. For up to 2 minutes a test pattern is displayed until the server responds or times out.  Remote then Local: Authentication using the centralized RADIUS server is attempted. If the server sends a reject message, then the setting of Allow Local Login after Reject from AAA determines if the local user database is checked or not. If the configured servers do not respond within 2 minutes, then the local user database is used. The successful login method is displayed in the navigation column of the SM. Allow Local Login after Reject from AAA If a user authentication is rejected from the AAA server, the user is allowed to login locally to the radio’s management interface. It is applicable ONLY when the User Authentication Mode is set to “Remote then Local”. Note When the radio User Authentication Mode is set to “Local” or “Remote”, the Allow Local Login after Reject from AAA does not any effect. Accounting Messages  disable – no accounting messages are sent to the RADIUS server  deviceAccess – accounting messages are sent to the RADIUS server regarding device access (see Table 187). Access Tracking To track logon and logoff times on individual radios by technicians, installers, and administrators, on the AP or SM’s Account > User Authentication and Access Tracking tab under Accounting (Access Tracking) set Accounting Messages to “deviceAccess”. Device Access Tracking is enabled separately from User Authentication Mode. A given AP or SM can be configured for both, either, or neither. RADIUS Device Data Accounting PMP 450 Platform systems include support for RADIUS accounting messages for usage-based billing. This accounting includes indications for subscriber session establishment, subscriber session disconnection, and bandwidth usage per session for each SM that connects to the AP. The attributes included in the RADIUS accounting messages are shown in the table below. Table 187 Device data accounting RADIUS attributes Sender Message Attribute Value Description AP Acct-Status-Type 1 - Start
Chapter 7: Configuration Configuring a RADIUS server Page 7-252 Sender Message Attribute Value Description Accounting-Request Acct-Session-Id Unique per AP session. Initial value is SM MAC, and increments after every start message sent of an in session SM. This message is sent every time a SM registers with an AP, and after the SM stats are cleared. Event-Timestamp UTC time the event occurred on the AP AP Accounting-Request Acct-Status-Type 2 - Stop This message is sent every time a SM becomes unregistered with an AP, and when the SM stats are cleared. Acct-Session-Id Unique per AP session. Initial value is SM MAC, and increments after every start message sent of an in session SM. Acct-Input-Octets Sum of the input octets received at the SM over regular data VC and the high priority data VC (if enabled). Will not include broadcast. Acct-Output-Octets Sum of the output octets sent from the SM over regular data VC and the high priority data VC (if enabled). Acct-Input-Gigawords Number of times the Acct-Input-Octets counter has wrapped around 2^32 over the course of the session Acct-Output-Gigawords Number of times the Acct-Output-Octets counter has wrapped around 2^32 over the course of the session Acct-Input-Packets Sum of unicast and multicast packets that are sent to a particular SM over the regular data VC and the high priority data VC (if enabled). It will not include broadcast. Acct-Output-Packets Sum of unicast and multicast packets that are sent from a particular SM over the regular data VC and the high priority data VC (if enabled).
Chapter 7: Configuration Configuring a RADIUS server Page 7-253 Sender Message Attribute Value Description Acct-Session-Time Uptime of the SM session. Acct-Terminate-Cause Reason code for session termination AP Accounting-Request Acct-Status-Type 3 - Interim-Update This message is sent periodically per the operator configuration on the AP in seconds. Interim update counts are cumulative over the course of the session Acct-Session-Id Unique per AP session. Initial value is SM MAC, and increments after every start message sent of an in session SM. Acct-Input-Octets Sum of the input octets sent to the SM over regular data VC and the high priority data VC (if enabled). Will not include broadcast. Acct-Output-Octets Sum of the output octets set from the SM over regular data VC and the high priority data VC (if enabled). Acct-Input-Gigawords Number of times the Acct-Input-Octets counter has wrapped around 2^32 over the course of the session Acct-Output-Gigawords Number of times the Acct-Output-Octets counter has wrapped around 2^32 over the course of the session Acct-Session-Time Uptime of the SM session. Acct-Input-Packets Sum of unicast and multicast packets that are sent to a particular SM over the regular data VC and the high priority data VC (if enabled). It will not include broadcast. Acct-Output-Packets Sum of unicast and multicast packets that are sent from a particular SM over the regular data VC and the high priority data VC (if enabled).
Chapter 7: Configuration Configuring a RADIUS server Page 7-254 The data accounting configuration is located on the AP’s Accounts > User Authentication and Access Tracking GUI menu, and the AP’s Authentication Mode must be set to Radius AAA for the menu to appear. The accounting may be configured via the AP GUI as shown in the figures below. By default accounting messages are not sent and the operator has the choice of configuring to send only Device Access accounting messages (when a user logs in or out of the radio), only Data Usage messages, or both. When Data Accounting is enabled, the operator must specify the interval of when the data accounting messages are sent (0 – disabled, or in the range of 30-10080 minutes). The default interval is 30 minutes. Figure 161 RADIUS accounting messages configuration The data accounting message data is based on the SM statistics that the AP maintains, and these statistics may be cleared on the AP by an operator. If an operator clears these messages and data accounting is enabled, an accounting stop message is sent followed by an accounting start message to notify the AAA of the change. If an operator clears the VC statistics on the device through the management GUI, a RADIUS stop message and data start message is issued for each device affected. The start and stop messages will only be sent once every 5 minutes, so if an operator clears these statistics multiple times within 5 minutes, only one set of data stop/start messages is sent. This may result in inaccurate data accumulation results. RADIUS Device Re-authentication PMP 450 Platform systems include support for periodic SM re-authentication in a network without requiring the SM to re-register (and drop the session). The re-authentication may be configured to occur in the range of every 30 minutes to weekly. Figure 162 Device re-authentication configuration The re-authentication interval is only configurable on the AP. When this feature is enabled, each SM that enters the network will re-authenticate each the interval time has expired without dropping the session. The response that the SM receives from the AAA server upon re-authentication is one of the following:  Success: The SM continues normal operation  Reject: The SM de-registers and will attempt network entry again after 1 minute and then if rejected will attempt re-entry every 15 minutes
Chapter 7: Configuration Configuring a RADIUS server Page 7-255  Timeout or other error: The SM remains in session and attempt 5 times to re-authenticate with the RADIUS-REQUEST message. If these attempts fail, then the SM will go out of session and proceed to re-authenticate after 5 minutes, then every 15 minutes. Although re-authentication is an independent feature, it was designed to work alongside with the RADIUS data usage accounting messages. If a user is over their data usage limit the network operator can reject the user from staying in the network. Operators may configure the RADIUS ‘Reply-Message’ attribute with an applicable message (i.e. “Data Usage Limit Reached”) that is sent to the subscriber module and displayed on the general page.
Chapter 7: Configuration Configuring a RADIUS server Page 7-256 RADIUS Change of Authorization and Disconnect Message Prior to this feature, SM will get configuration parameters from a RADIUS server during authentication process. This feature allows an administrator to control configuration parameters in the SM while SM is in session. The configuration changes in SM are done using RADIUS Change of Authorization method (RFC 3576) on the existing RADIUS authentication framework for AP and SM. A typical use case could be changing the QOS parameters after a certain amount of bandwidth usage by a SM. Figure 163 RADIUS CoA configuration for AP The RADIUS CoA feature enables initiating a bi-directional communication from the RADIUS server(s) to the AP and SM. The AP listens on UDP port 3799 and accepts CoA requests from the configured RADIUS servers. This CoA request should contain SM MAC address in ‘User-Name’ attribute as identifier and all other attributes which control the SM config parameters. For security reasons, a timestamp also needs to be added as ‘Event-Timestamp’ attribute. Hence the time should also be synchronized between the RADIUS server(s) and the AP to fit within a window of 300 seconds. Once the configuration changes are applied on the SM, CoA-ACK message is sent back to RADIUS server. If the validation fails, the AP sends a CoA-NACK response to the RADIUS server with proper error code. A Disconnect-Message is sent by the RADIUS server to NAS in order to terminate a user session on a NAS and discard all associated session context. It is used when the authentication AAA server wants to disconnect the user after the session has been accepted by the RADIUS. In response of Disconnect-Request from RADIUS server, the NAS sends a Disconnect-ACK if all associated session context is discarded, or a Disconnect-NACK, if the NAS is unable to disconnect the session. Note The RADIUS CoA feature will only enabled if Authentication mode is set to RADIUS AAA.
Chapter 7: Configuration Configuring a RADIUS server Page 7-257 Microsoft RADIUS support This feature allows to configure Microsoft RADIUS (Network Policy and Access Services a.k.a NPS) as Authentication server for SM and User authentication.  For SM Authentication, SM will user PEAP-MSCHAPv2 since NPS doesn’t support TTLS protocol.  For User Authentication, the Canopy software will use EAP-MD5 but the user has to do certain configuration in order to enable EAP-MD5 on NPS. Note All this configuration has been tested on Windows Server 2012 R2 version. This feature is not supported on hardware board type P9 or lower platforms. SM Authentication Configuration There are no new configuration on AP. However SM has to be configured for PEAP authentication protocol. 1. Go to Configuration > Security page 2. Select “eappeap” for Phase 1 attribute under tab AAA Authentication Settings. Figure 164 EAPPEAP settings The Phase 2 will change automatically to MSCHAPv2 on select of Phase 1 attribute as EAP-PEAP. Other parameters of Phase 2 protocols like PAP/CHAP will be disabled. Windows Server Configuration Import Certificate The SM certificate has to be imported to Windows Server for certificate authentication. 1. Copy the certificate which is configured in SM under Configuration > Security -> Certificate1 to Windows Server machine. 2. Right click and select ‘Install Certificate’. This will install the certificate and it’s ready for use. This certificate will be used while configuring PEAP-MSCHAPv2 in NPS.
Chapter 7: Configuration Configuring a RADIUS server Page 7-258 NPS Configuration (https://technet.microsoft.com/en-us/network/bb545879.aspx) Following items should be configured in NPS Console:  RADIUS Client o https://technet.microsoft.com/en-us/library/cc732929  Connection Request Policies o https://technet.microsoft.com/en-us/library/cc730866 o Choose ‘Wireless-Other’ in NAS-Port-Type  Network Policy o https://technet.microsoft.com/en-us/library/cc755309 o Choose ‘Wireless-Other’ in NAS-Port-Type. o While configuring PEAP, select the above imported certificate. Figure 165 Importing certificate in NPS User Authentication Configuration Enabling EAP-MD5 As mentioned earlier, Microsoft has deprecated the support for MD5 from versions of Windows. To enable MD5, the following steps to be followed: 1. Follow the instructions: https://support.microsoft.com/en-us/kb/922574/en-us?wa=wsignin1.0 Optionally, the registry file can be downloaded. It can be installed by double-click it in Windows Registry. 2. From NPS Console Network Policy > <Policy Name> > Properties > Constrains > Authentication Method and click Add. Select MD5 and click OK.
Chapter 7: Configuration Configuring a RADIUS server Page 7-259 Figure 166 Selecting MD5 from NPS console User Configuration in Active Directory Next open ‘Active Directory Users and Computers’ and create user. Make sure user property is configured as shown below. Figure 167 User configuration
Chapter 7: Configuration Configuring a RADIUS server Page 7-260 RADIUS VSA Configuration Before using VSA, the Cambium-Canopy-UserLevel(50) VSA must be configured with some access level say ADMIN(3). Follow below link for configuring VSA: https://technet.microsoft.com/en-us/library/cc731611 The Cambium’s vendor code is 161. Figure 168 RADIUS VSA configuration Accounting User can enable accounting in NPS under NPS Console > Accounting > Configure Accounting. For more details refer https://technet.microsoft.com/library/dd197475
Chapter 7: Configuration Configuring a RADIUS server Page 7-261 Cisco ACS RADIUS Server Support This briefly explains how to configure Cisco ACS RADIUS server for PEAP-MSCHAPv2 authentication. The configuration had been tested on CISCO ACS Version : 5.7.0.15 Adding RADIUS client Figure 169 Adding RADIUS client Creating Users Figure 170 Creating users
Chapter 7: Configuration Configuring a RADIUS server Page 7-262 Creating RADIUS instance Figure 171 Creating RADIUS instance RADIUS protocols Figure 172 RADIUS protocols
Chapter 7: Configuration Configuring a RADIUS server Page 7-263 Service selection Figure 173 Service selection Adding Trusted CA Figure 174 Adding Trusted CA Note that certificate has to be in DER form, so if you have in PEM format convert using openssl. Openssl.exe x509 -in <path-to->/cacert_aaasvr.pem -outform DER -out <path-to>/cacert_aaasvr.der Installing Server Certificate After installing trusted CA, you need to add a server certificate which will be used for TLS tunnel. Generally you have to install same certificate which is installed in your AP, so that AP can trust the radius server. Figure 175 Installing Server Certificate
Chapter 7: Configuration Configuring a RADIUS server Page 7-264 Monitoring Logs Figure 176 Monitoring logs Configuring VSA Before using VSA , user has to add Cambium Vendor Specific Attribute Navigate to System Administration > Configuration > Dictionaries > Protocols > RADIUS > RADIUS VSA > Motorola If Motorola is not present you can create Vendor with ID 161 and add all the VSA one by one.
Chapter 7: Configuration Configuring a RADIUS server Page 7-265 Figure 177 VSA list Using VSA for users Navigate to Access Policies > Access Services > Cambium ACS > Authorization 1. Change condition to User name
Chapter 7: Configuration Configuring a RADIUS server Page 7-266 2. Next click Create and then click Select see diagram below 3. Click Create from the screen you get following screen Chose some name and then move to RADIUS Attributes tab 4. Fill attribute which all you want for that particular user Important: Click Add for each attribute and when done click Submit.
Chapter 7: Configuration Configuring a RADIUS server Page 7-267 5. Now you are ready to use this Authorization profile for the use Select and Press OK 6. Finally press Save Changes and you are ready to use it.
Chapter 7: Configuration Configuring Ping Watchdog Page 7-268 Configuring Ping Watchdog This feature allows administrator to automatically reboot an AP/SM when there is a network issue to avoid power on reset of radios. This feature is disabled by default. To enable Ping Watchdog feature, select the menu option Configuration > Ping Watchdog, and configure the parameters listed in the following table. Table 188 Ping Watchdog attributes Attribute Meaning Ping Watchdog This filed enables or disbales Ping Watchdog feature. IP Address To Ping This field specifies the IPV4 address of the device which needs to be pinged. Ping Interval This field specifies the time interval at which ping needs to be initiated. The time interval needs to be specified in seconds. Ping Failure Count To Reboot This field specifies the count of ping failures at which reboot needs to be initiated.
Page 8-1 Chapter 8: Tools The AP and SM GUIs provide several tools to analyze the operating environment, system performance and networking, including:  Using Spectrum Analyzer tool on page 8-2  Using the Alignment Tool on page 8-14  Using the Link Capacity Test tool on page 8-21  Using AP Evaluation tool on page 8-31  Using BHM Evaluation tool on page 8-35  Using the OFDM Frame Calculator tool on page 8-39  Using the Subscriber Configuration tool on page 8-43  Using the Link Status tool on page 8-44  Using BER Results tool on page 8-49  Using the Sessions tool on page 8-50  Using the Ping Test tool on page 8-51
Chapter 8: Tools Using Spectrum Analyzer tool Page 8-2 Using Spectrum Analyzer tool The integrated spectrum analyzer can be very useful as a tool for troubleshooting and RF planning, but is not intended to replicate the accuracy and programmability of a high-end spectrum analyzer, which sometime can be used for other purposes. The AP/BHM and SM/BHS perform spectrum analysis together in the Sector Spectrum Analyzer tool. Caution On start of the Spectrum Analyzer on a module, it enters a scan mode and drops any RF connection it may have had. When choosing Start Timed Spectrum Analysis, the scan is run for the amount of time specified in the Duration configuration parameter. When choosing Start Continuous Spectrum Analysis, the scan is run continuously for 24 hours, or until stopped manually (using the Stop Spectrum Analysis button). Any module can be used to see the frequency and power level of any detectable signal that is within, just above, or just below the frequency band range of the module. Note Vary the days and times when you analyze the spectrum in an area. The RF environment can change throughout the day or throughout the week. Mapping RF Neighbor Frequencies The neighbor frequencies can be analyzed using Spectrum Analyzer tool. Following modules allow user to:  Use a BHS or BHM for PTP and SM or AP for PMP as a Spectrum Analyzer.  View a graphical display that shows power level in RSSI and dBm at 5 MHz increments throughout the frequency band range, regardless of limited selections in the Custom Radio Frequency Scan Selection List parameter of the SM/BHS.  Select an AP/BHM channel that minimizes interference from other RF equipment. Caution The following procedure causes the SM/BHS to drop any active RF link. If a link is dropped when the spectrum analysis begins, the link can be re-established when either a 15 minute interval has elapsed or the spectrum analyzer feature is disabled. Temporarily deploy a SM/BHS for each frequency band range that need to monitor and access the Spectrum Analyzer tab in the Tools web page of the module.
Chapter 8: Tools Using Spectrum Analyzer tool Page 8-3  Using Spectrum Analyzer tool  Using the Remote Spectrum Analyzer tool Spectrum Analyzer tool Analyzing the spectrum To use the built-in spectrum analyzer functionality of the AP/SM/BH, proceed as follows: Procedure 30 Analyzing the spectrum 1 Predetermine a power source and interface that works for the AP/SM/BH in the area to be analyzed. 2 Take the AP/SM/BH, power source and interface device to the area. 3 Access the Tools web page of the AP/SM/BH. 4 Enter Duration in Timed Spectrum Analyzer Tab. Default value is 10 Seconds 5 Click Start Timed Sector Spectrum Analysis 6 The results are displayed: Figure 178 Spectrum analysis - Results Note AP/SM/BH scans for extra 40 seconds in addition to configured Duration 7 Travel to another location in the area to BHS. 8 Click Start Timed Spectrum Analysis 9 Repeat Steps 4 and 6 until the area has been adequately scanned and logged. As with any other data that pertains to your business, a decision today to put the data into a retrievable database may grow in value to you over time.
Chapter 8: Tools Using Spectrum Analyzer tool Page 8-4 Note Wherever the operator find the measured noise level is greater than the sensitivity of the radio that is plan to deploy, use the noise level (rather than the link budget) for your link feasibility calculations. The AP/SM/BH perform spectrum analysis together in the Sector Spectrum Analyzer feature. Graphical spectrum analyzer display The AP/SM/BH display the graphical spectrum analyzer. An example of the Spectrum Analyzer page is shown in Figure 178. The navigation feature includes:  Results may be panned left and right through the scanned spectrum by clicking and dragging the graph left and right  Results may be zoomed in and out using mouse When the mouse is positioned over a bar, the receive power level, frequency, maximum and mean receive power levels are displayed above the graph To keep the displayed data current, either set “Auto Refresh” on the module’s Configuration > General. Spectrum Analyzer page of AP The Spectrum Analyzer page of AP is explained in Table 189. Table 189 Spectrum Analyzer page attributes - AP
Chapter 8: Tools Using Spectrum Analyzer tool Page 8-5 Attribute Meaning Display Data Path Both means that the vertical and horizontal paths are displayed or an individual path may be selected to display only a single-path reading. Data For ease of parsing data and to facilitate automation, the spectrum analyzer results may be saved as an XML file. To save the results in an XML formatted file, right-click the “SpectrumAnalysis.xml” link and save the file. Display Instantaneous means that each reading (vertical bar) is displayed with two horizontal lines above it representing the max power level received (top horizontal line) and the average power level received (lower horizontal line) at that frequency. Averaging means that each reading (vertical bar) is displayed with an associated horizontal line above it representing the max power level received at that frequency. Min and Max Frequencies in KHz Enter minimum and maximum frequencies to be scanned. Set Min And Max to Full Scan On the button press, it sets mimimum and maximum allowed frequencies for scanning. Set Min And Max to Center Scan +/-40 MHz On the button press, it sets mimium and maximum frequencies to ± 40 MHz of center frequency for scanning. Registered SM Count This field displays the MAC address and Site Name of the registered SM. Maximum Count of Registered SMs This field displays the maximum number of registered SMs. SM Scanning Bandwidth This field allows to select SM’s scanning bandwidth. Duration This field allows operators to configure a specified time for which the spectrum is scanned. If the entire spectrum is scanned prior to the end of the configured duration, the analyzer will restart at the beginning of the spectrum. Continuous Spectrum Analyzer Start Continuous Spectrum Analysis button ensures that when the SM is powered on, it automatically scans the spectrum for 10 seconds. These results may then be accessed via the Tools > Spectrum Analyzer GUI page. Spectrum Analyzer page of SM The Spectrum Analyzer page of SM is explained in Table 190.
Chapter 8: Tools Using Spectrum Analyzer tool Page 8-6 Note Spectrum Analyzer is not currently supported by 450m. Table 190 Spectrum Analyzer page attributes - SM Attribute Meaning Display Data Path Refer Table 189 on page 8-4 Data Refer Table 189 on page 8-4 Display Refer Table 189 on page 8-4 Min and Max Frequencies in KHz To scan min to max range of frequencies, enter min and max frequencies in KHz and press Set Min and Max to Full Scan button. To scan +/- 40 MHz from center frequency, enter center frequency in KHz and press Set Min And Max To Center Scan +/- 40KHz button. Registered SM Count Refer Table 189 on page 8-4
Chapter 8: Tools Using Spectrum Analyzer tool Page 8-7 Maximum Count to Registered SMs Refer Table 189 on page 8-4 Duration Refer Table 189 on page 8-4 Spectrum Analyzer page of BHM The Spectrum Analyzer page of BHM is explained in Table 191. Table 191 Spectrum Analyzer page attributes - BHM Attribute Meaning Data Refer Table 189 on page 8-4
Chapter 8: Tools Using Spectrum Analyzer tool Page 8-8 Display Refer Table 189 on page 8-4 Duration Refer Table 189 on page 8-4 Continuous Spectrum Analyzer Refer Table 189 on page 8-4 Spectrum Analyzer page of BHS The Spectrum Analyzer page of BHS is explained in Table 192. Table 192 Spectrum Analyzer page attributes - BHS Attribute Meaning
Chapter 8: Tools Using Spectrum Analyzer tool Page 8-9 Data Refer Table 189 on page 8-4 Display Refer Table 189 on page 8-4 Session Status This field displays current session status and rates. The session states can be Scanning, Syncing, Registering or Registered. Registered Backhaul This field displays MAC address of BHM and PTP model number Duration Refer Table 189 on page 8-4 Perform Spectrum Analysis on Boot Up for one scan This field allows to Enable or Disable to start Spectrum Analysis on boot up of module for one scan. Continuous Spectrum Analyzer Refer Table 189 on page 8-4
Chapter 8: Tools Using Spectrum Analyzer tool Page 8-10 Spectrum Analyzer page result of PMP 450 SM Figure 179 Spectrum Analyzer page result – PMP 450 SM
Chapter 8: Tools Using Spectrum Analyzer tool Page 8-11 Remote Spectrum Analyzer tool The Remote Spectrum Analyzer tool in the AP/BHM provides additional flexibility in the use of the spectrum analyzer in the SM/BHS. Set the duration of 10 to 1000 seconds, then click the Start Remote Spectrum Analysis button to launch the analysis from that SM/BHS. In PMP configuration, a SM has to be selected from the drop-down list before launching Start Remote Spectrum Analysis. Analyzing the spectrum remotely Procedure 31 Remote Spectrum Analyzer procedure 1 The AP/BHM de-registers the target SM/BHS. 2 The SM/BHS scans (for the duration set in the AP/BHM tool) to collect data for the bar graph. 3 The SM/BHS re-registers to the AP/BHM. 4 The AP/BHM displays the bar graph. The bar graph is an HTML file, but can be changed to an XML file, which is then easy to analyze through the use of scripts that you may write for parsing the data. To transform the file to XML, click the “SpectrumAnalysis.xml” link below the spectrum results. Although the resulting display appears mostly unchanged, the bar graph is now coded in XML. You can now right-click on the bar graph for a Save Target As option to save the Spectrum Analysis.xml file. Remote Spectrum Analyzer page of AP The Remote Spectrum Analyzer page of AP is explained in Table 193.
Chapter 8: Tools Using Spectrum Analyzer tool Page 8-12 Table 193 Remote Spectrum Analyzer attributes - AP Attribute Meaning Registered SM Count This field displays the number of SMs that were registered to the AP before the SA was started. This helps the user know all the SMs re-registered after performing a SA. Maximum Count of Registered SMs This field displays the largest number of SMs that have been simultaneously registered in the AP since it was last rebooted. This count can provide some insight into sector history and provide comparison between current and maximum SM counts at a glance. Current Subscriber Module The SM with which the Link Capacity Test is run. Duration This field allows operators to configure a specified time for which the spectrum is scanned. If the entire spectrum is scanned prior to the end of the configured duration, the analyzer will restart at the beginning of the spectrum. Scanning Bandwidth This parameter defines the size of the channel scanned when running the analyzer.
Chapter 8: Tools Using Spectrum Analyzer tool Page 8-13 Remote Spectrum Analyzer page of BHM The Remote Spectrum Analyzer page of BHM is explained in Table 194. Table 194 Remote Spectrum Analyzer attributes - BHM Attribute Meaning Duration Refer Table 189 on page 8-4
Chapter 8: Tools Using the Alignment Tool Page 8-14 Using the Alignment Tool The SM’s or BHS’s Alignment Tool may be used to maximize Receive Power Level, Signal Strength Ratio and Signal to Noise Ratio to ensure a stable link. The Tool provides color coded readings to facilitate in judging link quality. Note To get best performance of the link, the user has to ensure the maximum Receive Power Level during alignment by pointing correctly. The proper alignment is important to prevent interference in other cells. The achieving Receive Power Level green (>- 70 dBm) is not sufficient for the link. Figure 180 Alignment Tool tab of SM – Receive Power Level > -70 dBm Figure 181 Alignment Tool tab of SM – Receive Power Level between -70 to -80 dBm Figure 182 Alignment Tool tab of SM – Receive Power Level < -80 dBm
Chapter 8: Tools Using the Alignment Tool Page 8-15 Aiming page and Diagnostic LED – SM/BHS The SM’s/BHS’s Alignment Tool (located in GUI Tools -> Aiming) may be used to configure the SM’s/BHS’s LED panel to indicate received signal strength and to display decoded beacon information/power levels. The SM/BHS LEDs provide different status based on the mode of the SM/BHS. A SM/BHS in “operating” mode will register and pass traffic normally. A SM/BHS in “aiming” mode will not register or pass traffic, but will display (via LED panel) the strength of received radio signals (based on radio channel selected via Tools ->Aiming). See SM/BHS LEDs on page 2-17. Note In order for accurate power level readings to be displayed, traffic must be present on the radio link. Refer Table 23 SM/BHS LED descriptions on page 2-18 for SM/BHS LED details. Aiming page of SM The Aiming page is similar to Spectrum Analyzer where it scans the spectrum but it does not establish any session with any APs. It has two modes – Single Frequency Only and Normal Frequency Scan List. The Aiming page of SM is explained in Table 195.
Chapter 8: Tools Using the Alignment Tool Page 8-16 Table 195 Aiming page attributes – SM Attribute Meaning Aiming Mode Single Frequency Only: scans only selected single frequency. Normal Frequency Scan List: scans: scans all frequency of scan list. Single Frequency Select a particular frequency from drop down menu for scanning. Scan Radio Frequency Only Mode Enabled: the radio is configured to “aiming” or “alignment” mode, wherein the LED panel displays an indication of receive power level. See Table 23 SM/BHS LED descriptions on page 2-18. Disabled: the radio is configured to “operating” mode, wherein the SM registers and passes traffic normally. Aiming Results The Aiming Results are displayed in two sections – Current entry and Other entries. Frequency: this field indicates the frequency of the AP which is transmitting the beacon information.
Chapter 8: Tools Using the Alignment Tool Page 8-17 Power: This field indicates the current receive power level (vertical channel) for the frequency configured in parameter Radio Frequency. Users: This field indicates the number of SMs currently registered to the AP which is transmitting the beacon information. ESN: This field indicates the MAC, or hardware address of the AP/BHM which is transmitting the beacon information. Color Code: This field displays a value from 0 to 254 indicating the AP’s configured color code. For registration to occur, the color code of the SM and the AP must match. Color code is not a security feature. Instead, color code is a management feature, typically for assigning each sector a different color code. Color code allows you to force a SM to register to only a specific AP, even where the SM can communicate with multiple APs. The default setting for the color code value is 0. This value matches only the color code of 0 (not all 255 color codes). Multipoint or Backhaul: this field indicates type of configuration - point-Multipoint(PMP) or Backhaul (PTP).
Chapter 8: Tools Using the Alignment Tool Page 8-18 Aiming page of BHS The Alignment page of BHS is explained in Table 196. Table 196 Aiming page attributes - BHS Attribute Meaning Refer Table 161 for Atributes details.
Chapter 8: Tools Using the Alignment Tool Page 8-19 Alignment Tone For coarse alignment of the SM/BHS, use the Alignment Tool located at Tools -> Alignment Tool. Optionally, connect a headset alignment tone kit to the AUX/SYNC port of the SM/BHS and listen to the alignment tone, which indicates greater SM/BHS receive signal power by pitch. By adjusting the SM’s/BHS’s position until the highest frequency pitch is obtained operators and installers can be confident that the SM/BHS is properly positioned. For information on device GUI tools available for alignment, see sections Aiming page and Diagnostic LED – SM/BHS on page 8-15, Using the Link Capacity Test tool on page 8-21 and Using AP Evaluation tool on page 8-31. Figure 183 PMP/PTP 450i Series link alignment tone Note The Alignment Tone cable for a 450i Series uses an RJ-45 to headset cable where as the 450 Series alignment tone cable uses an RJ-12 to headset cable. Alignment Tool Headset and alignment tone adapters can be ordered from Cambium and Best-Tronics (http://btpa.com/Cambium-Products/) respectively using the following part numbers: Headphones 450i Alignment tone adapter
Chapter 8: Tools Using the Alignment Tool Page 8-20 Table 197 Alignment Tool Headsets and Alignment tone adapter third party product details Reference Product description ACATHS-01A Alignment tool headset for the PMP/PTP 450 and 450i Series products BT-1277 Headset alignment cable (RJ-45) for the PMP/PTP 450i Series products BT-0674 Headset alignment cable (RJ-12) for the PMP/PTP 450 Series products.
Chapter 8: Tools Using the Link Capacity Test tool Page 8-21 Using the Link Capacity Test tool The Link Capacity Test tab allows you to measure the throughput and efficiency of the RF link between two modules. Many factors, including packet length, affect throughput. The Link Capacity Test tool has following modes:  Link Test with Multiple VCs: Tests radio-to-radio communication across selected or all registered VCs, but does not bridge traffic (PMP 450m Series AP only).  Link Test without Bridging: Tests radio-to-radio communication, but does not bridge traffic.  Link Test with Bridging: Bridges traffic to “simulated” Ethernet ports, providing a status of the bridged link.  Link Test with Bridging and MIR: Bridges the traffic during test and also adheres to any MIR (Maximum Information Rate) settings for the link.  Extrapolated Link Test: Estimates the link capacity by sending few packets and measuring link quality. The Link Capacity Test tab contains the settable parameter Packet Length with a range of 64 to 1714 bytes. This allows you to compare throughput levels that result from various packet sizes. The Current Results Status also displayed date and time of last performed Link Capacity Test. If there is any change in time zone, the date and time will be adjusted accordingly. Note The Extrapolated Link Test can be run by Read-Only login also. Performing Link Test The link test is a tool that allows the user to test the performance of the RF link. Packets are added to one or more queues in the AP in order to fill the frame. Throughput and efficiency are then calculated during the test. The 450 and 450i APs offer link test options to one SM at a time. The 450m AP offers the option of a link test to multiple VCs at the same time. This allows the user to test throughput in MU-MIMO mode, in which multiple SMs are served at the same time. This new link test can be found under Tools > Link Capacity Test
Chapter 8: Tools Using the Link Capacity Test tool Page 8-22 Link Test with Multiple VCs Note The “Link Test with Multiple VCs” Link Capacity Test is supported for PMP 450m Series AP only. Figure 184 Link Capacity Test – PMP 450m Series AP Procedure 32 Performing a Link Capacity Test - Link Test with Multiple VCs Link Test Configurations parameters 1 Access the Link Capacity Test tab in the Tools web page of the module. 2 Select Link Test Mode – Options are: Link Test with Multiple VCs, Link Test without Bridging, Link Test with Bridging, Link Test with Bridging and MIR, Extrapolated Link Test All options except for the Link Test with Multiple VCs are available also for the 450 and 450i APs. 3 Set the SM Link Test Mode Restriction attribute to enable or disable. Setting this to enabled, prevents activation of SM initated link tests. 4 Set Signal to Noise Ratio Calculation during Link Test attribute to enable or disable. 5 Set Link Test VC Priority attribute to either High and Low Priority VCs or Low Priority VC only.
Chapter 8: Tools Using the Link Capacity Test tool Page 8-23 6 Select Flood Test Mode – Options are: Internal and External Default is Internal. When set to Internal, packets are sent from AP -> SM over RF. When set to External, packets will all flow out the Ethernet port. 7 Set MU-MIMO attribute to enable or disable . Note: The MU-MIMO feature is enabled on the Low Priority VC only Link Test Settings parameters 6 Select the subscriber module to test using the Current Subscriber Module parameter. Note: This parameter is not available in BHM. 7 Enter VC List (applicable for PMP 450m AP only) The Current Subscriber Module and VC List are valid only when selecting Link Test with Multiple VCs.  Current Subscriber Module: select the VC to perform the link test with  VC list: select a list or range of VCs to include in the link test with multiple VCs If left blank, all VCs will be included in the link test 8 Type into the Duration field how long (in seconds) the RF link must be tested. 9 Select the Direction – Bi-directional, Uplink Only or Downlink Only. 10 Type into the Number of Packets field a value of 0 to flood the link for the duration of the test. 11 Type into the Packet Length field a value of 1714 to send 1714-byte packets during the test. 12 Click the Start Test button.
Chapter 8: Tools Using the Link Capacity Test tool Page 8-24 Figure 185 Link Test with Multiple VCs (1518-byte packet length) Link Test without Bridging, Link Test with Bridging or Link Test with Bridging and MIR Figure 186 Link Capacity Test – PMP 450/450i Series AP
Chapter 8: Tools Using the Link Capacity Test tool Page 8-25 Refer Link Test with Multiple VCs on page 8-22 for Link Test procedure. Figure 187 Link Test without Bridging (1714-byte packet length)
Chapter 8: Tools Using the Link Capacity Test tool Page 8-26 Performing Extrapolated Link Test The Extrapolated Link Test estimates the link capacity by sending few packets and measuring link quality. Once the test is initiated, the radio starts session at the lower modulation, 1X, as traffic is passed successfully across the link, the radio decides to try the next modulation, 2X. This process repeats until it find best throughput to estimate capacity of link. Note It is recommended to run Extrapolated Link Test where the session must have been up and have traffic present on it in order to get accurate test results. This is essential for the radio to modulate up to get an accurate measurement. Running the Extrapolated test just after establishing session will not provide accurate results. The procedure for performing Extrapolated Link Test is as follows: Procedure 33 Performing an Extrapolated Link Test 1 Access the Link Capacity Test tab in the Tools web page of the module. 2 Select Link Test Mode Extrapolated Link Test 3 Click the Start Test button. 4 In the Current Results Status block of this tab, view the results of the test.
Chapter 8: Tools Using the Link Capacity Test tool Page 8-27 Figure 188 Extrapolated Link Test results
Chapter 8: Tools Using the Link Capacity Test tool Page 8-28 Link Capacity Test page of AP The Link Capacity Test page of AP is explained in Table 198. Table 198 Link Capacity Test page attributes – AP Attribute Meaning Link Test Mode Select Link Test Mode from drop down menu :  Link Test with Multiple VCs (PMP 450m Series AP only)  Link Test without Bridging  Link Test with Bridging  Link Test with Bridging and MIR  Extrapolated Link Test Signal to Noise Ratio Calculation during Link Test Enable this attribute to display Signal-to-Noise information for the downlink and uplink when running the link test. Link Test VC Priority This attribute may be used to enable/disable usage of the high and low priority virtual channel during the link test. Flood Test Mode This field determines whether a packet is sent out of the SM’s Ethernet port (external) or not (internal). Note: This field is applicable only when the “Link Test Mode” field is set to “Link Test with Multiple VC’s” option. MU-MIMO This field determines whether the DL flood test packets use MU-MIMO grouping or not.
Chapter 8: Tools Using the Link Capacity Test tool Page 8-29 Note: This field is applicable only when the “Link Test Mode” field is set to “Link Test with Multiple VC’s” option. Display results for untested VCs If “Link test with multiple VC’s” is run and a subset of registered VC’s enters into the VC List field, then enabling this field produces a table that displays results for VC’s with traffic which are in session; but not tested as part of the link test. Current Subscriber Module The SM with which the Link Capacity Test is run. This field is only applicable for AP (not SM page). VC List This field is displayed for PMP 450m Series AP. It is only applicable for “Link Test with Multiple VCs” Test mode. Enter VC List (e.g. 18 or above for low priority VCs and 255 or above for high priority VCs or 0 for all registered VCs) which needs to be used for link test traffic. Duration This field allows operators to configure a specified time for which the spectrum is scanned. If the entire spectrum is scanned prior to the end of the configured duration, the analyzer will restart at the beginning of the spectrum. Direction Configure the direction of the link test. Specify Downlink or Uplink to run the test only in the corresponding direction only. Specific Bi-Directional to run the test in both directions. Number of Packets The total number of packets to send during the Link Capacity Test. When Link Test Mode is set to RF Link Test this field is not configurable. Packet Length The size of the packets in Bytes to send during the Link Capacity Test Link Capacity Test page of BHM/BHS/SM The Link Capacity Test page of BHM/BHS is explained in Table 199.
Chapter 8: Tools Using the Link Capacity Test tool Page 8-30 Table 199 Link Capacity Test page attributes – BHM/BHS Attribute Meaning Link Test Mode See Table 198 on page 8-28 Signal to Noise Ratio Calculation during Link Test See Table 198 on page 8-28 Link Test VC Priority See Table 198 on page 8-28 Duration See Table 198 on page 8-28 Direction See Table 198 on page 8-28 Number of Packets See Table 198 on page 8-28 Packet Length See Table 198 on page 8-28
Chapter 8: Tools Using AP Evaluation tool Page 8-31 Using AP Evaluation tool The AP Evaluation tab on Tools web page of the SM provides information about the AP that the SM sees. Note The data for this page may be suppressed by the SM Display of AP Evaluation Data setting in the Configuration > Security tab of the AP. The AP Eval results can be accessed via SNMP and config file. AP Evaluation page The AP Evaluation page of AP is explained in Table 200. Table 200 AP Evaluation tab attributes - AP Attribute Meaning Index This field displays the index value that the system assigns (for only this page) to the AP where this SM is registered. Frequency This field displays the frequency that the AP transmits. Channel Bandwidth The channel size used by the radio for RF transmission. The setting for the channel bandwidth must match between the AP and the SM.
Chapter 8: Tools Using AP Evaluation tool Page 8-32 Cyclic Prefix OFDM technology uses a cyclic prefix, where a portion of the end of a symbol (slot) is repeated at the beginning of the symbol to allow multi-pathing to settle before receiving the desired data. A 1/16 cyclic prefixes mean that for every 16 bits of throughput data transmitted, an additional bit is used. The Cyclic Prefix 1/16 only can be selected at this time. ESN This field displays the MAC address (electronic serial number) of the AP. For operator convenience during SM aiming, this tab retains each detected ESN for up to 15 minutes. If the broadcast frequency of a detected AP changes during a 15-minute interval in the aiming operation, then a multiple instance of the same ESN is possible in the list. Eventually, the earlier instance expires and disappears and the later instance remains to the end of its interval, but you can ignore the early instance(s) whenever two or more are present. Region This field displays the AP’s configured Country Code setting. Power Level This field displays the SM’s combined received power level from the AP’s transmission. Beacon Count A count of the beacons seen in a given time period. FECEn This field contains the SNMP value from the AP that indicates whether the Forward Error Correction feature is enabled. 0: FEC is disabled 1: FEC is enabled Type Multipoint indicates that the listing is for an AP. Age This is a counter for the number of minutes that the AP has been inactive. At 15 minutes of inactivity for the AP, this field is removed from the AP Evaluation tab in the SM. Lockout This field displays how many times the SM has been temporarily locked out of making registration attempts. RegFail This field displays how many registration attempts by this SM failed. Range This field displays the distance in feet for this link. To derive the distance in meters, multiply the value of this parameter by 0.3048. MaxRange This field indicates the configured value for the AP’s Max Range parameter. TxBER A 1 in this field indicates the AP is sending Radio BER. Ebcast A 1 in this field indicates the AP or BHM is encrypting broadcast packets. A 0 indicates it is not. Session Count This field displays how many sessions the SM (or BHS) has had with the AP (or BHM). Typically, this is the sum of Reg Count and Re-Reg Count. However, the result of internal calculation may display here as a value that slightly differs from the sum.
Chapter 8: Tools Using AP Evaluation tool Page 8-33 In the case of a multipoint link, if the number of sessions is significantly greater than the number for other SMs, then this may indicate a link problem or an interference problem. NoLUIDs This field indicates how many times the AP has needed to reject a registration request from a SM because its capacity to make LUID assignments is full. This then locks the SM out of making any valid attempt for the next 15 minutes. It is extremely unlikely that a non-zero number would be displayed here. OutOfRange This field indicates how many times the AP has rejected a registration request from a SM because the SM is a further distance away than the range that is currently configured in the AP. This then locks the SM out of making any valid attempt for the next 15 minutes. AuthFail This field displays how many times authentication attempts from this SM have failed in the AP. EncryptFail This field displays how many times an encryption mismatch has occurred between the SM and the AP. Rescan Req This field displays how many times a re-range request has occurred for the BHM that is being evaluated in the AP Eval page of a BHS. SMLimitReached This field displays 0 if additional SMs may be registered to the AP. If a 1 is displayed, the AP will not accept additional SM registrations. NoVC’s This counter is incremented when the SM is registering to an AP which determines that no VC resources are available for allocation. This could be a primary data VC or a high priority data VC. VCRsvFail This counter is incremented when the SM is registering to an AP which has a VC resource available for allocation but cannot reserve the resource for allocation. VCActFail This counter is incremented when the SM is registering to an AP which has a VC resource available for allocation and has reserved the VC, but cannot activate the resource for allocation. AP Gain This field displays the total external gain (antenna) used by the AP. RcvT This field displays the AP’s configured receive target for receiving SM transmissions (this field affects automatic SM power adjust). Sector ID This field displays the value of the Sector ID field that is provisioned for the AP. Color Code This field displays a value from 0 to 254 indicating the AP’s configured color code. For registration to occur, the color code of the SM and the AP must match. Color code is not a security feature. Instead, color code is a management feature, typically for assigning each sector a different color code.
Chapter 8: Tools Using AP Evaluation tool Page 8-34 Color code allows you to force a SM to register to only a specific AP, even where the SM can communicate with multiple APs. The default setting for the color code value is 0. This value matches only the color code of 0 (not all 255 color codes). BeaconVersion This field indicates that the beacon is OFDM (value of 1). Sector User Count This field displays how many SMs are registered on the AP. NumULHalfSlots This is the number of uplink slots in the frame for this AP. NumDLHalfSlots This is the number of downlink slots in the frame for this. NumULContSlots This field displays how many Contention Slots are being used in the uplink portion of the frame. WhiteSched Flag to display if schedule whitening is supported via FPGA ICC This field lists the SMs that have registered to the AP with their Installation Color Code (ICC), Primary CC, Secondary CC or Tertiary CC. SM PPPoE This filed provides information to the user whether the SM is supporting PPPoE or not. Frame Period This field displays the configured Frame Period of the radio.
Chapter 8: Tools Using BHM Evaluation tool Page 8-35 Using BHM Evaluation tool The BHM Evaluation tab on Tools web page of the BHS provides information about the BHM that the BHS sees. BHM Evaluation page of BHS The BHM Evaluation page of BHS is explained in Table 201. Table 201 BHM Evaluation tab attributes - BHS Attribute Meaning Index This field displays the index value that the system assigns (for only this page) to the BHM where this BHS is registered. Frequency This field displays the frequency that the BHM transmits. Channel Bandwidth The channel size used by the radio for RF transmission. The setting for the channel bandwidth must match between the BHM and the BHS. Cyclic Prefix OFDM technology uses a cyclic prefix, where a portion of the end of a symbol (slot) is repeated at the beginning of the symbol to allow multi-pathing to settle before receiving the desired data. A 1/16 cyclic prefixes mean that for every 16 bits of throughput data transmitted, an additional bit is used.
Chapter 8: Tools Using BHM Evaluation tool Page 8-36 ESN This field displays the MAC address (electronic serial number) of the BHM. For operator convenience during BHS aiming, this tab retains each detected ESN for up to 15 minutes. If the broadcast frequency of a detected BHM changes during a 15-minute interval in the aiming operation, then a multiple instance of the same ESN is possible in the list. Eventually, the earlier instance expires and disappears and the later instance remains to the end of its interval, but you can ignore the early instance(s) whenever two or more are present. Region This field displays the BHM’s configured Country Code setting. Power Level This field displays the BHS’s combined received power level from the BHM’s transmission. Beacon Count A count of the beacons seen in a given time period. FECEn This field contains the SNMP value from the BHM that indicates whether the Forward Error Correction feature is enabled. 0: FEC is disabled 1: FEC is enabled Type Multipoint indicates that the listing is for a BHM. Age This is a counter for the number of minutes that the BHM has been inactive. At 15 minutes of inactivity for the BHS, this field is removed from the BHM Evaluation tab in the BHS. Lockout This field displays how many times the BHS has been temporarily locked out of making registration attempts. RegFail This field displays how many registration attempts by this BHS failed. Range This field displays the distance in feet for this link. To derive the distance in meters, multiply the value of this parameter by 0.3048. MaxRange This field indicates the configured value for the AP’s Max Range parameter. TxBER A 1 in this field indicates the BHM is sending Radio BER. Ebcast A 1 in this field indicates the BHM is encrypting broadcast packets. A 0 indicates it is not. Session Count This field displays how many sessions the BHS has had with the BHM. Typically, this is the sum of Reg Count and Re-Reg Count. However, the result of internal calculation may display here as a value that slightly differs from the sum. In the case of a multipoint link, if the number of sessions is significantly greater than the number for other BHS’s, then this may indicate a link problem or an interference problem.
Chapter 8: Tools Using BHM Evaluation tool Page 8-37 NoLUIDs This field indicates how many times the BHM has needed to reject a registration request from a BHS because its capacity to make LUID assignments is full. This then locks the BHS out of making any valid attempt for the next 15 minutes. It is extremely unlikely that a non-zero number would be displayed here. OutOfRange This field indicates how many times the BHM has rejected a registration request from a BHS because the BHS is a further distance away than the range that is currently configured in the BHM. This then locks the BHS out of making any valid attempt for the next 15 minutes. AuthFail This field displays how many times authentication attempts from this SM have failed in the BHM. EncryptFail This field displays how many times an encryption mismatch has occurred between the BHS and the BHM. Rescan Req This field displays how many times a re-range request has occurred for the BHM that is being evaluated in the BHM Eval page of a BHM. SMLimitReached This field displays 0 if additional BHSs may be registered to the BHM. If a 1 is displayed, the BHM will not accept additional BHS registrations. NoVC’s This counter is incremented when the BHS is registering to a BHM which determines that no VC resources are available for allocation. This could be a primary data VC or a high priority data VC. VCRsvFail This counter is incremented when the BHS is registering to a BHM which has a VC resource available for allocation but cannot reserve the resource for allocation. VCActFail This counter is incremented when the BHS is registering to a BHM which has a VC resource available for allocation and has reserved the VC, but cannot activate the resource for allocation. AP Gain This field displays the total external gain (antenna) used by the BHM. RcvT This field displays the AP’s configured receive target for receiving BHS transmissions (this field affects automatic BHS power adjust). Sector ID This field displays the value of the Sector ID field that is provisioned for the BHM. Color Code This field displays a value from 0 to 254 indicating the BHM’s configured color code. For registration to occur, the color code of the BHS and the BHM must match. Color code is not a security feature. Instead, color code is a management feature, typically for assigning each sector a different color code. Color code allows you to force a BHS to register to only a specific BHM, even where the BHS can communicate with multiple BHMs. The default setting for the color code value is 0. This value matches only the color code of 0 (not all 255 color codes).
Chapter 8: Tools Using BHM Evaluation tool Page 8-38 BeaconVersion This field indicates that the beacon is OFDM (value of 1). Sector User Count This field displays how many BHS’s are registered on the BHM. NumULHalfSlots This is the number of uplink slots in the frame for this BHM. NumDLHalfSlots This is the number of downlink slots in the frame for this. NumULContSlots This field displays how many Contention Slots are being used in the uplink portion of the frame. WhiteSched Flag to display if schedule whitening is supported via FPGA ICC This field lists the BHSs that have registered to the BHM with their Installation Color Code (ICC), Primary CC, Secondary CC or Tertiary CC. SM PPPoE This filed provides information to the user whether the BHS is supporting PPPoE or not. Frame Period This field displays the configured Frame Period of the radio.
Chapter 8: Tools Using the OFDM Frame Calculator tool Page 8-39 Using the OFDM Frame Calculator tool The first step to avoid interference in wireless systems is to set all APs/BHMs to receive timing from a synchronization source (Cluster Management Module, or Universal Global Positioning System). This ensures that the modules are in sync and start transmitting at the same time each frame. The second step to avoid interference is to configure parameters on all APs/BHMs of the same frequency band in proximity such that they have compatible transmit/receive ratios (all stop transmitting each frame before any start receiving). This avoids the problem of one AP/BHM attempting to receive the signal from a distant SM/BHS while a nearby AP transmits, which could overpower that signal. The following parameters on the AP determine the transmit/receive ratio:  Max Range  Frame Period  Downlink Data percentage  (reserved) Contention Slots If OFDM (PMP 430, PMP 450, PTP 230) and FSK (PMP 1x0) APs/BHMs of the same frequency band are in proximity, or if APs/BHMs set to different parameters (differing in their Max Range values, for example), then operator must use the Frame Calculator to identify compatible settings. The frame calculator is available on the Frame Calculator tab of the Tools web page. To use the Frame Calculator, type various configurable parameter values into the calculator for each proximal AP and then record the resulting AP/BHM Receive Start value. Next vary the Downlink Data percentage in each calculation and iterate until the calculated AP/BHM Receive Start for all collocated AP/BHMs where the transmit end does not come before the receive start. The calculator does not use values in the module or populate its parameters. It is merely a convenience application that runs on a module. For this reason, you can use any FSK module (AP, SM, BHM, BHS) to perform FSK frame calculations for setting the parameters on an FSK AP and any OFDM module (AP, SM, BHM, BHS) to perform OFDM frame calculations for setting the parameters on an OFDM AP/BHM. For more information on PMP/PTP 450 Platform co-location, see http://www.cambiumnetworks.com/solution-papers The co-location is also supported for 900 MHz PMP 450i APs (OFDM) and PMP 100 APs (FSK). Please refer Co-location of PMP 450 and PMP 100 systems in the 900 MHz band and migration recommendations document for details. Caution APs/BHMs that have slightly mismatched transmit-to-receive ratios and low levels of data traffic may see little effect on throughput. A system that was not tuned for co-location may work fine at low traffic levels, but encounter problems at higher traffic levels. The conservative practice is to tune for co-location before traffic ultimately increases. This prevents problems that occur as sectors are built. The OFDM Frame Calculator page is explained in Table 202.
Chapter 8: Tools Using the OFDM Frame Calculator tool Page 8-40 Table 202 OFDM Frame Calculator page attributes Attribute Meaning Link Mode For AP to SM frame calculations, select Multipoint Link For BHM to BHS frame calculations, select Point-To-Point Link Platform Type AP/BHM Use the drop-down list to select the hardware series (board type) of the AP/BHM. Platform Type SM/BHS Use the drop-down list to select the hardware series (board type) of the SM/BHS. Channel Bandwidth Set this to the channel bandwidth used in the AP/BHM. Cyclic Prefix Set this to the cyclic prefix used in the AP/BHM. Max Range Set to the same value as the Max Range parameter is set in the AP(s) or BHM(s).
Chapter 8: Tools Using the OFDM Frame Calculator tool Page 8-41 Frame Period Set to the same value as the Frame Period parameter is set in the AP(s) or BHM(s). Downlink Data Initially set this parameter to the same value that the AP/BHM has for its Downlink Data parameter (percentage). Then, use the Frame Calculator tool procedure as described in Using the Frame Calculator on page 8-42, you will vary the value in this parameter to find the proper value to write into the Downlink Data parameter of all APs or BHMs in the cluster. PMP 450 Platform Family APs or BHMs offer a range of 15% to 85% and default to 75%. The value that you set in this parameter has the following interaction with the value of the Max Range parameter (above): The default Max Range value is 5 miles and, at that distance, the maximum Downlink Data value (85% in PMP 450 Platform) is functional. Contention Slots This field indicates the number of (reserved) Contention Slots configured by the operator. Set this parameter to the value of the Contention Slot parameter is set in the APs or BHMs. SM/BHS One Way Air Delay This field displays the time in ns (nano seconds), that a SM/BHS is away from the AP/BHM. The Calculated Frame Results display several items of interest: Table 203 OFDM Calculated Frame Results attributes Attribute Meaning Modulation The type of radio modulation used in the calculation (OFDM for 450 Platform Family) Total Frame Bits The total number of bits used in the calculated frames Data Slots (Down/Up) This field is based on the Downlink Data setting. For example, a result within the typical range for a Downlink Data setting of 75% is 61/21, meaning 61 data slots down and 21 data slots up. Contention Slots This field indicates the number of (reserved) Contention Slots configured by the operator. Air Delay for Max Range This is the roundtrip air delay in bit times for the Max Range value set in the calculator Approximate distance for Max Range The Max Range value used for frame calculation AP Transmit End In bit times, this is the frame position at which the AP/BHM ceases transmission. AP Receive Start In bit times, this is the frame position at which the AP/BHM is ready to receive transmission from the SM/BHS.
Chapter 8: Tools Using the OFDM Frame Calculator tool Page 8-42 AP Receive End In bit times, this is the frame position at which the AP/BHM will cease receiving transmission from the SM/BHS. SM Receive End In bit times, this is the frame position at which the SM/BHS will cease receiving transmission from the AP/BHM. SM Transmit Start In bit times, this is the frame position at which the SM/BHS starts the transmission. SM One Way Air Delay This filed displays the time in ns, that SM/BHS is away from the AP/BHM. SM Approximate distance This field displays an approximate distance in miles (feet) that the SM/BHS is away from the AP/BHM. To use the Frame Calculator to ensure that all APs or BHMs are configured to transmit and receive at the same time, follow the procedure below: Procedure 34 Using the Frame Calculator 1 Populate the OFDM Frame Calculator parameters with appropriate values as described above. 2 Click the Calculate button. 3 Scroll down the tab to the Calculated Frame Results section 4 Record the value of the AP Receive Start field 5 Enter a parameter set from another AP in the system – for example, an AP in the same cluster that has a higher Max Range value configured. 6 Click the Calculate button. 7 Scroll down the tab to the Calculated Frame Results section 8 If the recorded values of the AP Receive Start fields are within 150 bit times of each other, skip to step 10. If the recorded values of the AP Receive Start fields are not within 150 bit times of each other, modify the Downlink Data parameter until the calculated results for AP Receive Start are within 300 bit time of each other, if possible, 150 bit time. 10 Access the Radio tab in the Configuration web page of each AP in the cluster and change its Downlink Data parameter (percentage) to the last value that was used in the Frame Calculator.
Chapter 8: Tools Using the Subscriber Configuration tool Page 8-43 Using the Subscriber Configuration tool The Subscriber Configuration page in the Tools page of the AP displays:  The current values whose control may be subject to the setting in the Configuration Source parameter.  An indicator of the source for each value. This page may be referenced for information on how the link is behaving based on where the SM is retrieving certain QoS and VLAN parameters. Figure 189 SM Configuration page of AP The AP displays one of the following for the configuration source:  (SM) – QoS/VLAN parameters are derived from the SM’s settings  (APCAP) – QoS/VLAN parameters are derived from the AP’s settings, including any keyed capping (for radios capped at 4 Mbps, 10 Mbps, or 20 Mbps)  (D) – QoS/VLAN parameters are retrieved from the device, due to failed retrieval from the AAA or WM server.  (AAA) – QoS/VLAN parameters are retrieved from the RADIUS server  (BAM) – QoS/VLAN parameters are retrieved from a WM BAM server
Chapter 8: Tools Using the Link Status tool Page 8-44 Using the Link Status tool The Link Status Tool displays information about the most-recent Link Test initiated on the SM or BHS. Link Tests initiated from the AP or BHM are not included in the Link Status table. This table is useful for monitoring link test results for all SMs or BHS in the system. The Link Status table is color coded to display health of link between AP/BHM and SM/BHS. The current Modulation Level Uplink/Downlink is chosen to determine link health and color coded accordingly. Uplink/Downlink Rate Column will be color coded using current Rate as per the table below: Table 204 Color code versus uplink/downlink rate column Actual Rate 1x 2x 3x 4x 6x 8x SISO RED ORANGE GREEN BLUE NA NA MIMO-A RED ORANGE GREEN BLUE NA NA MIMO B NA RED NA ORANGE GREEN BLUE Link Status – AP/BHM The current Uplink Rate (both low and high VC) for each SM or BHS in Session in now available on AP or BHM Link Status Page. The Link Status tool results include values for the following fields for AP/BHM.
Chapter 8: Tools Using the Link Status tool Page 8-45 Table 205 Link Status page attributes – AP/BHM Attribute Meaning Subscriber This field displays the LUID (logical unit ID), MAC address and Site Name of the SM. As each SM registers to the AP, the system assigns an LUID of 2 or a higher unique number to the SM. If a SM loses registration with the AP and then regains registration, the SM will retain the same LUID. Note The LUID associated is lost when a power cycle of the AP occurs. Both the LUID and the MAC are hot links to open the interface to the SM. In some instances, depending on network activity and network design, this route to the interface yields a blank web page. If this occurs, refresh your browser view. Site Name indicates the name of the SM. You can assign or change this name on the Configuration web page of the SM. This information is also set into the sysName SNMP MIB-II object and can be polled by an SNMP management server. Uplink Statistics - Power Level: Signal Strength Ratio This field represents the combined received power level at the AP/BHM as well as the ratio of horizontal path signal strength to vertical path signal strength. Uplink Statistics – Fragments Modulation This field represents the percentage of fragments received at each modulation state, per path (polarization).
Chapter 8: Tools Using the Link Status tool Page 8-46 Uplink Statistics – Signal to Noise Ratio This field represents the signal to noise ratio for the uplink (displayed when parameter Signal to Noise Ratio Calculation during Link Test is enabled) expressed for both the horizontal and vertical channels. Uplink Statistics – Link Test Efficiency This field displays the efficiency of the radio link, expressed as a percentage, for the radio uplink. Downlink Statistics – Beacon % Received Curr/Min/Max/Avg This field displays a count of beacons received by the SM in percentage. This value must be between 99-100%. If it is lower than 99%, it indicates a problematic link. This statistic is updated every 16 seconds. Downlink Statistics – Power Level: Signal Strength Ratio This field represents the received power level at the SM/BHS as well as the ratio of horizontal path signal strength to vertical path signal strength at the SM/BHS. Downlink Statistics – Signal to Noise Ratio This field represents the signal to noise ratio for the downlink (displayed when parameter Signal to Noise Ratio Calculation during Link Test is enabled) expressed for both the horizontal and vertical channels. Downlink Statistics – Link Test Efficiency This field displays the efficiency of the radio link, expressed as a percentage, for the radio downlink. Downlink Statistics – SU-MIMO Rate The SU-MIMO rate applies to all AP platforms. For 450m, this field indicates the rate being used for symbols where this particular VC is not being MU-MIMO grouped with other SMs. For 450 and 450i platforms, there is no grouping and this field indicates the modulation rate for all symbols. Downlink Statistics – MU-MIMO Rate The MU-MIMO rate applies only to the 450m AP. This field indicates the modulation rate used for symbols where this particular low priority VC is MU-MIMO scheduled by grouping it in the same slot with other low priority VC’s. BER Results This field displays the over-the-air Bit Error Rates for each downlink. (The ARQ [Automatic Resend 8-46equest] ensures that the transport BER [the BER seen end-to-end through a network] is essentially zero.) The level of acceptable over-the-air BER varies, based on operating requirements, but a reasonable value for a good link is a BER of 1e-4 (1 x 10-4) or better, approximately a packet resend rate of 5%. BER is generated using unused bits in the downlink. During periods of peak load, BER data is not updated as often, because the system puts priority on transport rather than on BER calculation. Reg Requests A Reg Requests count is the number of times the SM/BHS registered after the AP/BHM determined that the link had been down. If the number of sessions is significantly greater than the number for other SMs/BHS, then this may indicate a link problem (check mounting, alignment, receive power levels) or an interference problem (conduct a spectrum scan).
Chapter 8: Tools Using the Link Status tool Page 8-47 ReReg Requests A ReReg Requests count is the number of times the AP/BHM received a SM/BHS registration request while the AP/BHM considered the link to be still up (and therefore did not expect registration requests). If the number of sessions is significantly greater than the number for other SMs/BHS, then this may indicate a link problem (check mounting, alignment, receive power levels) or an interference problem (conduct a spectrum scan). Link Status – SM/BHS The Link Status tool of SM/BHS displays Downlink Status and Uplink Status information. Table 206 Link Status page attributes – SM/BHS Attribute Meaning Downlink Status Receive Power This field lists the current combined receive power level, in dBm. Signal Strength Ratio This field displays the difference of the Vertical path received signal power to the Horizontal path received signal power for downlink. Signal to Noise Ratio This field lists the current signal-to-noise level, an indication of the separation of the received power level vs. noise floor for downlink.
Chapter 8: Tools Using the Link Status tool Page 8-48 Beacons Displays a count of beacons received by the SM in percentage. This value must be typically between 99-100%. If lower than 99%, it indicates a problematic link. This statistic is updated every 16 seconds. Received Fragments Modulation This field represents the percentage of fragments received at each modulation state, per path (polarization) Latest Remote Link Test Efficiency Percentage This field is not applicable. BER Total Avg Results This field displays the over-the-air average Bit Error Rates (BER) for downlink. Beacons Received Last 15 minutes The beacon count on the SM can be used to estimate the interference in the channel. The min/avg/max beacon percentage displayed based on this value for the last 15 mins. Uplink Status Transmit Power This field displays the current combined transmit power level, in dBm. Max Transmit Power This field displays the maximum transmit power of SM. Power Level This field indicates the combined power level at which the SM is set to transmit, based on the Country Code and Antenna Gain settings. Signal Strength Ratio This field displays the difference of the Vertical path received signal power to the Horizontal path received signal power for uplink. Signal to Noise Ratio This field lists the current signal-to-noise level, an indication of the separation of the received power level vs. noise floor for uplink. Latest Remote Link Test Efficiency Percentage This field is not applicable. Session Status This field displays the current state, Virtual channel, high-priority/ low priority channel rate adaptation and MIMO-A/MIMO-B/SISO status of SM. Spatial Frequency This filed displays the spatial frequency value of the VC or SM. Run Link Test See Exploratory Test section of Performing Extrapolated Link Test on page 8-26
Chapter 8: Tools Using BER Results tool Page 8-49 Using BER Results tool Radio BER data represents bit errors at the RF link level. Due to CRC checks on fragments and packets and ARQ (Automatic Repeat 8-49equest), the BER of customer data is essentially zero. Radio BER gives one indication of link quality. Other important indications to consider includes the received power level, signal to noise ratio and link tests. BER is only instrumented on the downlink and is displayed on the BER Results tab of the Tools page in any SM. Each time the tab is clicked, the current results are read and counters are reset to zero. The BER Results tab can be helpful in troubleshooting poor link performance. The link is acceptable if the value of this field is less than 10−4. If the BER is greater than 10−4, re-evaluate the installation of both modules in the link. The BER test signal is broadcast by the AP/BHM (and compared to the expected test signal by the SM/BHS) only when capacity in the sector allows it. This signal is the lowest priority for AP/BHM transmissions. Figure 190 BER Results tab of the SM
Chapter 8: Tools Using the Sessions tool Page 8-50 Using the Sessions tool The PMP 450 Platform Family AP has a tab Sessions under the Tools category which allows operators to drop one or all selected SM sessions and force a SM re-registration. This operation is useful to force QoS changes for SMs without losing AP logs or statistics. This operation may take 5 minutes to regain all SM registrations. Figure 191 Sessions tab of the AP
Chapter 8: Tools Using the Ping Test tool Page 8-51 Using the Ping Test tool The PMP 450 Platform Family AP has a tab Ping Test under the Tools category which allows users to check the accessibility of the given IP V4 address or a valid domain name Figure 192 Ping Test tab of the AP Note When a domain name (for example, www.google.com) is used for ping test, make sure that Preferred DNS Server and Alternate DNS Server parameters are configured in the Configuration > IP tab of the AP.
Page 9-1 Chapter 9: Operation This chapter provides instructions for operators of the 450 Platform Family wireless Ethernet Bridge. The following topics are described in this chapter:  System information on page 9-2 o Viewing General Status on page 9-2 o Viewing Session Status on page 9-20 o Viewing Remote Subscribers on page 9-29 o Interpreting messages in the Event Log on page 9-29 o Viewing the Network Interface on page 9-32 o Viewing the Layer 2 Neighbors on page 9-32  System statistics on page 9-33 o Viewing the Scheduler statistics on page 9-33 o Viewing list of Registration Failures statistics on page 9-35 o Interpreting Bridging Table statistics on page 9-37 o Interpreting Translation Table statistics on page 9-37 o Interpreting Ethernet statistics on page 9-38 o Interpreting RF Control Block statistics on page 9-41 o Interpreting VLAN statistics on page 9-2 o Interpreting Data VC statistics on page 9-4 o Interpreting Throughput statistics on page 9-6 o Interpreting Overload statistics on page 9-9 o Interpreting DHCP Relay statistics on page 9-10 o Interpreting Filter statistics on page 9-12 o Viewing ARP statistics on page 9-13 o Viewing NAT statistics on page 9-13 o Viewing NAT DHCP Statistics on page 9-15 o Interpreting Sync Status statistics on page 9-16 o Interpreting PPPoE Statistics for Customer Activities on page 9-17 o Interpreting Bridge Control Block statistics on page 9-19 o Interpreting Pass Through Statistics on page 9-22 o Interpreting SNMPv3 Statistics on page 9-23 o Interpreting syslog statistics on page 9-25 o Interpreting Frame Utilization statistics on page 9-25  Radio Recovery on page 9-36
Chapter 9: Operation System information Page 9-2 System information This section describes how to use the summary and status pages to monitor the status of the Ethernet ports and wireless link.  Viewing General Status on page 9-2  Viewing Session Status on page 9-20  Viewing Remote Subscribers on page 9-29  Interpreting messages in the Event Log on page 9-29  Viewing the Network Interface on page 9-32  Viewing the Layer 2 Neighbors on page 9-32 Viewing General Status The General Status tab provides information on the operation of this AP/BHM and SM/BHS. This is the page that opens by default when you access the GUI of the radio.
Chapter 9: Operation System information Page 9-3 General Status page of AP The General Status page of PMP 450m AP is explained in Table 207 The General Status page of PMP 450/450i AP is explained in Table 208. Table 207 General Status page attributes – PMP 450m AP
Chapter 9: Operation System information Page 9-4 Attribute Meaning Device Type This field indicates the type of the module. Values include the frequency band of the device, its module type and its MAC address. Board Type This field indicates the series of hardware. Software Version This field indicates the system release, the time and date of the release and whether communications involving the module are secured by DES or AES encryption. If you request technical support, provide the information from this field. Bootloader Version This field indicates the version of Uboot running on the 450m AP platform. Product Type The field indicates model number of 450m device. The 450m Series has two model variants.  PMP 450m: This model works in SU-MIMO mode which is default “limited” mode. The MU-MIMO license can be purchased from Cambium Networks and applied.  MU-MIMO: This model works in MU-MIMO mode. Board MSN This field indicates the Manufacture’s Serial number. A unique serial number assigned to each radio at the factory for inventory and quality control. FPGA Version This field indicates the version of the field-programmable gate array (FPGA) on the module. If you request technical support, provide the value of this field. Uptime This field indicates how long the module has operated since power was applied. System Time This field provides the current time. If the AP is connected to a CMM4, then this field provides GMT (Greenwich Mean Time). Any SM that registers to the AP inherits the system time. Last NTP Time Update This field displays when the AP last used time sent from an NTP server. If the AP has not been configured in the Time tab of the Configuration page to request time from an NTP server, then this field is populated by 00:00:00 00/00/00. Main Ethernet Interface This field indicates the speed and duplex state of the Ethernet interface to the AP.
Chapter 9: Operation System information Page 9-5 Aux Ethernet Interface This field displays Aux Ethernet Data and PoE-out interface enable/disable status. It is not supported in current release of PMP 450m Seriea AP. Region Code A parameter that offers multiple fixed selections, each of which automatically implements frequency band range for the selected region. Units shipped to regions other than restrictions the United States must be configured with the corresponding Region Code to comply with local regulatory requirements. Regulatory This field indicates whether the configured Country Code and radio frequency are compliant with respect to their compatibility. 450 Platform Family products shipped to the United States is locked to a Country Code setting of “United States”. Units shipped to regions other than the United States must be configured with the corresponding Country Code to comply with local regulatory requirements. Channel Frequency This field indicates the current operating center frequency, in MHz. Channel Bandwidth This field indicates the current size of the channel band used for radio transmission. Cyclic Prefix OFDM technology uses a cyclic prefix, where a portion of the end of a symbol (slot) is repeated at the beginning of the symbol to allow multi-pathing to settle before receiving the desired data. A 1/16 cyclic prefix means that for every 16 bits of throughput data transmitted, an additional bit is used. Frame Period This field indicates the current Frame Period setting of the radio in ms. Color Code This field displays a value from 0 to 254 indicating the AP’s configured color code. For registration to occur, the color code of the SM and the AP must match. Color code is not a security feature. Instead, color code is a management feature, typically for assigning each sector a different color code. Color code allows you to force a SM to register to only a specific AP, even where the SM can communicate with multiple APs. The default setting for the color code value is 0. This value matches only the color code of 0 (not all 255 color codes). Max Range This field indicates the setting of the Max Range parameter, which contributes to the way the radio transmits. Verify that the Max Range parameter is set to a distance slightly greater than the distance between the AP and the furthest SM that must register to this AP. EIRP This field indicates the combined power level at which the AP will transmit, based on the Country Code. Temperature This field indicates the current operating temperature of the device board. Registered SM Count This field indicates how many SMs are registered to the AP. Sync Pulse Status This field indicates the status of synchronization as follows: Generating Sync indicates that the module is set to generate the sync pulse.
Chapter 9: Operation System information Page 9-6 Receiving Sync indicates that the module is set to receive a sync pulse from an outside source and is receiving the pulse. No Sync Since Boot up / ERROR: No Sync Pulse indicates that the module is set to receive a sync pulse from an outside source and is not receiving the pulse. Note When this message is displayed, the AP transmitter is turned off to avoid self-interference within the system. Sync Pulse Source This field indicates the status of the synchronization source: Searching indicates that the unit is searching for a GPS fix Timing Port/UGPS indicates that the module is receiving sync via the timing AUX/SYNC timing port Power Port indicates that the module is receiving sync via the power port (Ethernet port). On-board GPS indicates that the module is receiving sync via the unit’s internal GPS module Maximum Count of Registered SMs This field displays the largest number of SMs that have been simultaneously registered in the AP since it was last rebooted. This count can provide some insight into sector history and provide comparison between current and maximum SM counts at a glance. Data Slots Down This field indicates the number of frame slots that are designated for use by data traffic in the downlink (sent from the AP to the SM). The AP calculates the number of data slots based on the Max Range, Downlink Data and (reserved) Contention Slots configured by the operator. Data Slots Up This field indicates the number of frame slots that are designated for use by data traffic in the uplink (sent from the SM to the AP). The AP calculates the number of data slots based on the Max Range, Downlink Data and (reserved) Contention Slots configured by the operator. Contention Slots This field indicates the number of (reserved) Contention Slots configured by the operator. See Contention slots on page7-176. Connection Status This field indicates the device connectivity to cnMaestro (Cambium’s cloud-based network management system). Account ID This field shows Account ID which is registered with Cambium Networks and it allows operator to manage devices using cnMaestro. Site Name This field indicates the name of the physical module. You can assign or change this name in the SNMP tab of the AP Configuration page. This information is also set into the sysName SNMP MIB-II object and can be polled by an SNMP management server.
Chapter 9: Operation System information Page 9-7 Site Contact This field indicates contact information for the physical module. You can provide or change this information in the SNMP tab of the AP Configuration page. This information is also set into the sysName SNMP MIB-II object and can be polled by an SNMP management server. Site Location This field indicates site information for the physical module. You can provide or change this information in the SNMP tab of the AP Configuration page. MU-MIMO Mode This field displays information about MU-MIMO mode. If AP is keyed as MU-MIMO, it will display “MU-MIMO”(Multi User - MIMO) otherwise it will display “SU-MIMO”(Single User - MIMO). Time Updated and Location Code This field displays information about the keying of the radio.
Chapter 9: Operation System information Page 9-8 Table 208 General Status page attributes – PMP 450/450i AP Attribute Meaning Device Type See Table 207 General Status page attributes – PMP 450m AP on page 9-3 for details Software Version Board Type See Table 207 General Status page attributes – PMP 450m AP on page 9-3 for details
Chapter 9: Operation System information Page 9-9 Product Type This indicates model of the device. FPGA Version See Table 207 General Status page attributes – PMP 450m AP on page 9-3 for details PLD Version Uptime System Time Main Ethernet Interface Aux Ethernet Interface It is not supported for PMP 450 Series devices. See Table 207 General Status page attributes – PMP 450m AP on page 9-3 for details Region Code See Table 207 General Status page attributes – PMP 450m AP on page 9-3 for details Regulatory Antenna Type Channel Center Frequency Channel Bandwidth Cyclic Prefix Frame Period Color Code Max Range Transmitter Output Power This field indicates the combined power level at which the AP is set to transmit, based on the Country Code and Antenna Gain settings. Temperature See Table 207 General Status page attributes – PMP 450m AP on page 9-3 for details 802.3at Type 2 PoE Status The field displays whether PoE Classification functionality is enabled or disabled. It is only applicable for 450i Series devices. Registered SM Count See Table 207 General Status page attributes – PMP 450m AP on page 9-3 for details Sync Pulse Status Sync Pulse Source Maximum Count of Registered SMs Data Slots Down Data Slots Up
Chapter 9: Operation System information Page 9-10 Contention Slots Connection Status Account ID See Table 207 General Status page attributes – PMP 450m AP on page 9-3 for details Site Name Site Contact Site Location Time Updated and Location Code
Chapter 9: Operation System information Page 9-11 General Status page - SM The SM’s General Status page is explained in Table 209. Note In order for accurate power level readings to be displayed, traffic must be present on the radio link. Table 209 General Status page attributes - SM Attribute Meaning Device Type This field indicates the type of the module. Values include the frequency band of the SM, its module type and its MAC address.
Chapter 9: Operation System information Page 9-12 Board Type This field indicates the series of hardware. Product Type This indicates model of the device. Software Version This field indicates the system release, the time and date of the release. If you request technical support, provide the information from this field. FPGA Version This field indicates the version of the field-programmable gate array (FPGA) on the module. When you request technical support, provide the information from this field. PLD Version This field indicates the version of the programmable logic device (PLD) on the module. If you request technical support, provide the value of this field. Uptime This field indicates how long the module has operated since power was applied. System Time This field provides the current time. Any SM that registers to an AP inherits the system time, which is displayed in this field as GMT (Greenwich Mean Time). Ethernet Interface This field indicates the speed and duplex state of Ethernet interface to the SM. Regional Code A parameter that offers multiple fixed selections, each of which automatically implements frequency band range restrictions for the selected region. Units shipped to regions other than the United States must be configured with the corresponding Country Code to comply with local regulatory requirements. DFS This field indicates that DFS operation is enabled based on the configured region code, if applicable. Antenna Type The current antenna type that has been selected. Frame Period This field indicates the current Frame Period setting of the radio in ms. Temperature The current operating temperature of the board. Session Status This field displays the following information about the current session: Scanning indicates that this SM currently cycles through the radio frequencies that are selected in the Radio tab of the Configuration page. Syncing indicates that this SM currently attempts to receive sync. Registering indicates that this SM has sent a registration request message to the AP and has not yet received a response. Registered indicates that this SM is both:  registered to an AP.  ready to transmit and receive data packets. Session Uptime This field displays the duration of the current link. The syntax of the displayed time is hh:mm:ss.
Chapter 9: Operation System information Page 9-13 Registered AP Displays the MAC address and site name of the AP to which the SM is registered to. This parameter provides click-through proxy access to the AP’s management interface. Color Code This field displays a value from 0 to 254 indicating the SM’s configured color code. For registration to occur, the color code of the SM and the AP must match. Color code is not a security feature. Instead, color code is a management feature, typically for assigning each sector a different color code. Color code allows you to force a SM to register to only a specific AP, even where the SM can communicate with multiple APs. The default setting for the color code value is 0. This value matches only the color code of 0 (not all 255 color codes). Channel Frequency This field lists the current operating frequency of the radio. Channel Bandwidth The size in MHz of the operating channel. Cyclic Prefix OFDM technology uses a cyclic prefix, where a portion of the end of a symbol (slot) is repeated at the beginning of the symbol to allow multi-pathing to settle before receiving the desired data. A 1/16 cyclic prefix means that for every 16 bits of throughput data transmitted, an additional bit is used. Air Delay This field displays the distance in feet between this SM and the AP. To derive the distance in meters, multiply the value of this parameter by 0.3048. Distances reported as less than 200 feet (61 meters) are unreliable. Receive Power This field lists the current combined receive power level, in dBm. Signal Strength Ratio This field displays the difference of the Vertical path received signal power to the Horizontal path received signal power. Signal to Noise Ratio This field lists the current signal-to-noise level, an indication of the separation of the received power level vs. noise floor. Beacons Displays a count of beacons received by the SM in percentage. This value must be typically between 99-100%. If lower than 99%, it indicates a problematic link. This statistic is updated every 16 seconds. Transmit Power This field lists the current combined transmit power level, in dBm. Note The red SM message “target power exceeded maximum” does not necessarily indicate a problem. In this case, the AP is requesting the SM to transmit at a higher power level, but the SM is restricted due to EIRP limits or hardware capabilities. This message can be an indication that the SM is deployed further from the AP than optimal, causing the AP to adjust the SM to maximum transmit power.
Chapter 9: Operation System information Page 9-14 Data Slots Down This field lists the number of slots used for downlink data transmission. Data Slots Up This field lists the number of slots used for uplink data transmission. Contention Slots This field indicates the number of (reserved) Contention Slots configured by the operator. See Contention slots on page7-176. Site Name This field indicates the name of the physical module. You can assign or change this name in the SNMP tab of the SM Configuration page. This information is also set into the sysName SNMP MIB-II object and can be polled by an SNMP management server. Site Contact This field indicates contact information for the physical module. You can provide or change this information in the SNMP tab of the SM Configuration page. This information is also set into the sysName SNMP MIB-II object and can be polled by an SNMP management server. Site Location This field indicates site information for the physical module. You can provide or change this information in the SNMP tab of the SM Configuration page. Maximum Throughput This field indicates the limit of aggregate throughput for the SM and is based on the default (factory) limit of the SM and any floating license that is currently assigned to it. Time Updated and Location Code This field displays information about the keying of the radio. Note For PMP 450 SM 900 MHz, there is additional parameter Path Info (under Subscriber Module Stats) which displays polarization path(A & B) information.
Chapter 9: Operation System information Page 9-15 General Status page of BHM The BHM’s General Status page is explained in Table 210. Table 210 General Status page attributes - BHM Attribute Meaning Device Type This field indicates the type of the module. Values include the frequency band of the BHM, its module type and its MAC address. Board Type This field indicates the series of hardware. Product Type This indicates model of the device.
Chapter 9: Operation System information Page 9-16 Software Version This field indicates the system release, the time and date of the release. If you request technical support, provide the information from this field. Board MSN This field indicates the Manufacture’s Serial number. A unique serial number assigned to each radio at the factory for inventory and quality control. FPGA Version This field indicates the version of the field-programmable gate array (FPGA) on the module. When you request technical support, provide the information from this field. Uptime This field indicates how long the module has operated since power was applied. System Time This field provides the current time. Any BHS that registers to a BHM inherits the system time, which is displayed in this field as GMT (Greenwich Mean Time). Ethernet Interface This field indicates the speed and duplex state of Ethernet interface to the BHM. Antenna Type The current antenna type that has been selected. Temperature The current operating temperature of the board. Session Status This field displays the following information about the current session: Scanning indicates that this BHS currently cycles through the radio frequencies that are selected in the Radio tab of the Configuration page. Syncing indicates that this BHM currently attempts to receive sync. Registering indicates that this BHM has sent a registration request message to the BHM and has not yet received a response. Registered indicates that this BHM is both:  Registered to a BHM.  Ready to transmit and receive data packets. Session Uptime This field displays the duration of the current link. The syntax of the displayed time is hh:mm:ss. Registered Backhaul Displays the MAC address and site name of the BHM to which the BHS is registered to. This parameter provides click-through proxy access to the BHM’s management interface. Channel Frequency This field lists the current operating frequency of the radio. Receive Power This field lists the current combined receive power level, in dBm. Signal Strength Ratio This field displays the difference of the Vertical path received signal power to the Horizontal path received signal power. Transmit Power This field lists the current combined transmit power level, in dBm. Signal to Noise Ratio This field lists the current signal-to-noise level, an indication of the separation of the received power level vs. noise floor.
Chapter 9: Operation System information Page 9-17 Beacons Displays a count of beacons received by the BHM in percentage. This value must be typically between 99-100%. If lower than 99%, it indicates a problematic link. This statistic is updated every 16 seconds. Air Delay This field displays the distance in feet between this BHS and the BHM. To derive the distance in meters, multiply the value of this parameter by 0.3048. Distances reported as less than 200 feet (61 meters) are unreliable. Data Slots Down This field lists the number of slots used for downlink data transmission. Data Slots Up This field lists the number of slots used for uplink data transmission. Regional Code A parameter that offers multiple fixed selections, each of which automatically implements frequency band range restrictions for the selected region. Units shipped to regions other than the United States must be configured with the corresponding Country Code to comply with local regulatory requirements. Site Name This field indicates the name of the physical module. Assign or change this name in the Configuration > SNMP page. This information is also set into the sysName SNMP MIB-II object and can be polled by an SNMP management server.
Chapter 9: Operation System information Page 9-18 General Status page of BHS The BHS’s General Status page is explained in Table 211. Table 211 General Status page attributes - BHS
Chapter 9: Operation System information Page 9-19 Attribute Meaning Device Type See Table 211 on page 9-18 Board Type Software Version Board MSN FPGA Version Uptime See Table 211 on page 9-18 System Time Ethernet Interface Antenna Type Temperature Session Status Session Uptime Registered Backhaul Channel Frequency Receive Power Signal Strength Ratio Transmit Power Signal to Noise Ratio Beacons Air Delay Data Slots Down Data Slots Up Regional Code Site Name Site Contact Site Location Time Updated and Location Code
Chapter 9: Operation System information Page 9-20 Viewing Session Status The Session Status page in the Home page provides information about each SM or BHS that has registered to the AP or BHM. This information is useful for managing and troubleshooting a system. This page also includes the current active values on each SM or BHS for MIR and VLAN, as well as the source of these values, representing the SM/BHS itself, Authentication Server, or the Authentication Server and SM/BHS. Note In order for accurate power level readings to be displayed, traffic must be present on the radio link. The Session Status List has four tab: Device, Session, Power and Configuration. The SessionStatus.xml hyper link allows user to export session status page from web management interface of AP or BHM. The session status page will be exported in xml file. Device tab The Device tab provides information on the Subscriber’s LUID and MAC, Hardware, Software, FPGA versions and the state of the SM/BHS (Registered and/or encrypted). Table 212 Device tab attributes Attribute Meaning Subscriber This field displays the LUID (logical unit ID), MAC address and Site Name of the SM/BHS. As each SM or BHS registers to the AP/BHM, the system assigns an LUID of 2 or a higher unique number to the SM/BHS. If a SM/BHS loses registration with the AP/BHS and then regains registration, the SM/BHS will retain the same LUID.
Chapter 9: Operation System information Page 9-21 Note The LUID associated is lost when a power cycle of the AP/BHM occurs. Both the LUID and the MAC are hot links to open the interface to the SM/BHS. In some instances, depending on network activity and network design, this route to the interface yields a blank web page. If this occurs, refresh your browser view. Site Name indicates the name of the SM/BHS. Change this name on the Configuration web page of the SM/BHS. This information is also set into the sysName SNMP MIB-II object and can be polled by an SNMP management server. Hardware This field displays the SMs or BHS hardware type. Software Version This field displays the software release that operates on the SM/BHS, the release date and time of the software. FPGA Version This field displays the version of FPGA that runs on the SM/BHS State This field displays the current status of the SM/BHS as either  IN SESSION to indicate that the SM/BHS is currently registered to the AP/BHM.  IDLE to indicate that the SM/BHS was registered to the AP/BHM at one time, but now is not. This field also indicates whether the encryption scheme in the module is enabled. Session tab The Session tab provides information on the SMs or BHS Session Count, Reg Count, Re-Reg Count, Uptime, Air delay, PPPoE State and Timeouts. Table 213 Session tab attributes Attribute Meaning Subscriber See Table 212 on page 9-20.
Chapter 9: Operation System information Page 9-22 Count This field displays how many sessions the SM/BHS has had with the AP/BHM. Typically, this is the sum of Reg Count and Re-Reg Count. However, the result of internal calculation may display here as a value that slightly differs from the sum. If the number of sessions is significantly greater than the number for other SMs or BHS, then this may indicate a link problem or an interference problem. Reg Count When a SM/BHS makes a Registration Request, the AP/BHM checks its local session database to see whether it was registered earlier. If the AP/BHM concludes that the SM/BHS is not currently in session database and it is valid Registration Request, then the request increments the value of this field. In ideal situation, the Reg Count indicates total number of connected SMs to an AP. Note The user can clear Reg Count by dropping all current sessions of SM (or BHS) from Configuration > Tools > Sessions menu. Re-Reg Count When a SM/BHS makes a Registration Request, the AP/BHM checks its local session database to see whether it was registered earlier. If the AP/BHM concludes that the SM/BHS is currently in session database, then the request increments the value of this field. Typically, a Re-Reg is the case where both:  SM/BHS attempts to reregister for having lost communication with the AP/BHM.  AP/BHM has not yet observed the link to the SM/BHS as being down. It is possible for a small period of time if there is no downlink traffic and AP/BHM still assumes the session is up, but the SM/BHS, loses session and quickly re-connects before the AP/BHM knew the session had dropped. This is how a re-registration happens. If the number of sessions is significantly greater than the number for other SMs or BHS, then this may indicate a link problem (check mounting, alignment, receive power levels) or an interference problem (conduct a spectrum scan). Uptime Once a SM/BHS successfully registers to an AP/BHM, this timer is started. If a session drops or is interrupted, this timer is reactivated once re-registration is complete. CC Priority The field displays Color Code Priority (ICC, Primary, Secondary or Tertiary) of all connected SM. AirDelay This field displays the distance of the SM/BHS from the AP/BHM in meters, nanoseconds and bits. At close distances, the value in this field is unreliable.
Chapter 9: Operation System information Page 9-23 PPPoE state This field displays the current PPPoE state (whether configured) of the SM/BHS. Timeout This field displays the timeout in seconds for management sessions via HTTP, ftp access to the SM/BHS. 0 indicates that no limit is imposed. Power tab Table 214 Power tab attributes Attribute Meaning Subscriber See Table 212 on page 9-20. Hardware This field displays the SMs or BHS hardware type. Downlink Rate SU-MIMO This field displays whether the high-priority channel is enabled in the SM/BHS and the status of rate adapt. For example, if “8X/4X” is listed, the radio is capable of operating at 8X but is currently operating at 4X, due to RF conditions. This field also states whether it is MIMO-A or MIMO-B radio e.g. “8X/8X MIMO-B” indicates MIMO-B and “8X/4X MIMO-A” indicates MIMO-A. A VC starts at its lowest modulation and slowly rate adapts up, as traffic is successfully transmitted over the VC. It is normal for one VC to have a different modulation rate than another VC, if only one VC has traffic on it. For example if High Priority VC is enabled, but only low priority VC has traffic the reading will show: REGISTERED VC 18 Rate 8X/8X MIMO-B VC 255 Rate 8X/1X MIMO-B Note: The SU-MIMO rate applies to all AP platforms. For 450m, this field indicates the rate being used for symbols where this particular VC is not being MU-MIMO grouped with other SM’s. Downlink Rate MU-MIMO The MU-MIMO rate applies only to the 450m AP. This rate indicates the modulation used for symbols where this particular low priority VC is MU-MIMO scheduled, by grouping it in the same slot with other low priority VC’s AP Rx Power (dBm) This field indicates the AP’s or BHM’s combined receive power level for the listed SM/BHS.
Chapter 9: Operation System information Page 9-24 Signal Strength Ratio (dB) This field displays the ratio of the Vertical path received signal power to the Horizontal path received signal power. This ratio can be useful for determining multipathing conditions (high vertical to horizontal ratio) for Uplink. Signal to Noise Ratio (dB) This field lists the current signal-to-noise level, an indication of the separation of the received power level vs. noise floor. In other words, it indicates signal to noise ratio for Uplink.
Chapter 9: Operation System information Page 9-25 Configuration tab The Configuration tab provides information on the SMs or BHS Uplink or Downlink (UL/DL) Sustained Data Rate, UL/DL Burst Allocation, UL/DL Burst Rate, UL/DL Low Priority CIR, UL/DL High CIR, UL/DL High Priority Queue Information and the UL/DL Broadcast or Multicast Allocation. This data is refreshed based on the Web Page Auto Update setting on the AP’s or BHS’s General Configuration page. Table 215 Configuration tab attributes Attribute Meaning Subscriber See Table 212 on page 9-20. Sustained Data Rate Cap (kbps) This field specifies the maximum sustained data rate between SM/BHS and AP/BHM. If this field displays “Uncapped”, then there is no limit set for data rate. If this field displays 4000, then the maximum sustained data rate between SM/BHS and AP/BHM is limited to 4000 kbps. Sustained Data Rate (kbps) - Uplink This field displays the value that is currently in effect for the SM/BHS, with the source of that value in parentheses. This is the specified rate at which each SM/BHS registered to this AP/BHM is replenished with credits for transmission. The configuration source of the value is indicated in parentheses. See Maximum Information Rate (MIR) Parameters on page 7-198. Sustained Data Rate (kbps) - Downlink This field displays the value that is currently in effect for the SM/BHS, with the source of that value in parentheses. This is the specified the rate at which the AP/BHM should be replenished with credits (tokens) for transmission to each of the SMs/BHS’s in its sector. The configuration source of the value is indicated in parentheses. See Maximum Information Rate (MIR) Parameters on page 7-198.
Chapter 9: Operation System information Page 9-26 Burst Allocation (kbit) - Uplink This field displays the value that is currently in effect for the SM/BHS, with the source of that value in parentheses. This is the specified maximum amount of data that each SM/BHS is allowed to transmit before being recharged at the Sustained Uplink Data Rate with credits to transmit more. The configuration source of the value is indicated in parentheses. See Interaction of Burst Allocation and Sustained Data Rate Settings on page 7-200 Burst Allocation (kbit) - Downlink This field displays the value that is currently in effect for the SM/BHS, with the source of that value in parentheses. This is the specified the rate at which the AP/BHM should be replenished with credits (tokens) for transmission to each of the SMs/BHS’s in its sector. The configuration source of the value is indicated in parentheses. See Interaction of Burst Allocation and Sustained Data Rate Settings on page 7-200 Max Burst Rate (kbit) - Uplink The data rate at which an SM/BHS is allowed to burst (until burst allocation limit is reached) before being recharged at the Sustained Uplink Data Rate with credits to transit more. When set to 0 (default), the burst rate is unlimited. See Interaction of Burst Allocation and Sustained Data Rate Settings on page 7-200 Max Burst Rate (kbit) - Downlink The data rate at which an SM/BHS is allowed to burst (until burst allocation limit is reached) before being recharged at the Sustained Downlink Data Rate with credits to transit more. When set to 0 (default), the burst rate is unlimited. See Interaction of Burst Allocation and Sustained Data Rate Settings on page 7-200 Low Priority CIR This field indicates the minimum rate at which low priority traffic is sent over the uplink and downlink (unless CIR is oversubscribed or RF link quality is degraded). High CIR This field indicates the minimum rate at which high priority traffic is sent over the uplink and downlink (unless CIR is oversubscribed or RF link quality is degraded). Broadcast/Multicast Allocation This field displays the data rate at which Broadcast and Multicast traffic is sent via the radio link. RADIUS Authentication Reply This field displays whether RADIUS server is reachable or not. RADIUS Authentication Server This field displays the associated RADIUS Authentication Server for each SM where it was authenticated. This information is useful when there are multiple RADIUS servers (maximum three servers supported by Cambium). If one server is not reachable, other configured servers are tried in sequential order as a fall-back. In this scenario, the Session Status is useful to identify associate RADIUS Authentication Server for all connected SMs.
Chapter 9: Operation System information Page 9-27 Table 216 Session Status > Configuration CIR configuration denotations Attribute Meaning (SM) QoS/VLAN parameters are derived from the SM’s/BHS’s settings (APCAP) QoS/VLAN parameters are derived from the AP’s settings, including any keyed capping (for radios capped at 4 Mbps, 10 Mbps, or 20 Mbps) (D) QoS/VLAN parameters are retrieved from the device, due to failed retrieval from the AAA or WM server. (AAA) QoS/VLAN parameters are retrieved from the RADIUS server (BAM) QoS/VLAN parameters are retrieved from a WM BAM server

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