Starting with WiNG 7.2.1, Extreme Network's 802.11ax access points will support Agile Multiband operation. WiFi Agile Multiband uses IEEE 802.11 (802.11k, 802.11v, 802.11u, 802.11r) standards to facilitate optimum utilization of spectrum within a managed wireless network.
Multiband-enabled APs exchange information about the WiFi environment with each other and with multiband-enabled stations connected with them. This dynamic monitoring of network conditions allows APs to steer clients to other APs, frequency bands, channels, or a cellular service in case of network congestion.
Use this command to enable Agile Multiband operation on the WLAN.
multi-band-operation
None
nx9500-6C8809(config-wlan-Testing)#show context include-factory | include encryption encryption-type ccmp nx9500-6C8809(config-wlan-Testing)#
Note
Multiband operation capabilities is enabled by default only if the encryption protocol used is CCMP.The IEEE 802.11w PMF standard provides protection for robust management frame. De-authentication, disassociation, action and channel switch announcement unicast frames forwarded to a client are protected. Robust management frame protection is achieved by using CCMP for unicast management frames, broadcast/multicast integrity protocol for broadcast/multicast management frames and SA query protocol for protection against (re)association attacks.
nx9500-6C8809(config-wlan-Testing)#show context include-factory | include protected-mgmt-frames protected-mgmt-frames optional protected-mgmt-frames sa-query timeout 201 protected-mgmt-frames sa-query attempts 5 nx9500-6C8809(config-wlan-Testing)#
Note
PMF is enabled by default only if the encryption protocol used is CCMP.WLAN APs send BSS Transition Management Request frames to 802.11v capable clients. These request frames suggest a specific AP, or a set of APs to which the client can transition for better throughput and QoS.
nx9500-6C8809(config-wlan-Testing)#show context include-factory | include 802.11v no 802.11v session-information-url 802.11v bss-transition nx9500-6C8809(config-wlan-Testing)#
In a WLAN, devices normally connect to the access point with the strongest signal. Depending on the number and location of clients, this arrangement can lead to excessive demand on one access point and under utilization of others. With RRM (IEEE 802.11k) you can monitor channel interference, radio resources, etc. within the wireless network. This information is utilized by agile-multiband enabled APs to influence clients to associate with under-utilized access points. In spite of the signal being weaker, the overall throughput is greater since it's an efficient use of the network resources.
nx9500-6C8809(config-wlan-Testing)#show context include-factory | include radio- resource-measurement radio-resource-measurement radio-resource-measurement channel-report radio-resource-measurement tpc-report radio-resource-measurement neighbor-report nx9500-6C8809(config-wlan-Testing)#
nx9500-6C8809(config-wlan-Testing)#multi-band-operation
nx9500-6C8809#service wireless add-neighbor 1 mac A8-DB-03-6E-39-9C preference 30 nx9500-6C8809#
no (wlan-config-mode) | Disables Agile Multiband operation on this WLAN. |