ClientMatch Service

ClientMatch helps in improving the experience of wireless clients. ClientMatch identifies the clients that do not get the required level of service from the associated AP. ClientMatch intelligently steers such clients to an AP that can provide better service. ClientMatch improves the user experience.

Steer Types

ClientMatch periodically checks the health of the current association of the clients and determines the steer type.

Sticky Steer

Sticky clients tend to stay associated with an AP despite deteriorating signal levels. ClientMatch continuously monitors the Relative Signal Strength Indicator (RSSI Received Signal Strength Indicator. RSSI is a mechanism by which RF energy is measured by the circuitry on a wireless NIC (0-255). The RSSI is not standard across vendors. Each vendor determines its own RSSI scale/values.) of sticky clients. If required, ClientMatch moves the clients to an AP that offers better level of service. Sticky steer prevents the clients from remaining associated to an AP with less than ideal RSSI. Less than ideal RSSI causes poor connectivity and reduces the performance for other clients associated with that AP.

Band Steer

Dual-band clients associate with the 2.4 GHz Gigahertz. or 5 GHz radio of an AP. In band Band refers to a specified range of frequencies of electromagnetic radiation. steer, ClientMatch moves dual-band clients from the 2.4 GHz radio to the 5 GHz radio of the same AP.

ClientMatch for Wi-Fi 6E Clients

ClientMatch allows 6 GHz capable clients to participate in sticky and band steers, and in spectrum load balancing.

Band Steer from 2.4 GHz to 6 GHz

The band steer from 2.4 GHz radio to 6 GHz radio feature is enabled by default. ClientMatch attempts band steer only if:

  • A client is 6 GHz capable.
  • A viable 6 GHz radio is available on the same AP where the client has associated on the 2.4 GHz radio.
  • A client is steerable for band steer to 6 GHz radio.

If a client associated on the 2.4 GHz radio is not in good health, then ClientMatch attempts steering the client to the 6 GHz radio on the same AP. If these conditions are not favourable, ClientMatch considers band steer to the 5 GHz radio.

Unsteerable Clients

If repeated attempts to band-steer a client from 2.4 GHz to 6 GHz fails, ClientMatch marks the client as unsteerable to 6 GHz radio. ClientMatch attempts to move the client to 5 GHz unless or until it is unsteerable for band steer to 5 GHz radio too. ClientMatch does not support band steer from 5 GHz to 6 GHz radio.

Sticky Steer Within 6 GHz Band

ClientMatch always performs sticky steers across radios in the same band. ClientMatch attempts sticky steer only if the client is steerable on the 6 GHz radio. If a client associated on the 6 GHz radio is not in good health, ClientMatch attempts steering the client to a 6 GHz radio on another AP.

Supported and Non-preferred Channels in 6 GHz

The APs populate the new fields for 6 GHz supported and nonpreferred channels. ClientMatch uses these new fields for the supported and nonpreferred channel checks during sticky steers and load balance steers on the 6 GHz radio.

Steering Methods

ClientMatch determines the best neighbor radio to steer the client. ClientMatch sends action messages to the APs and orchestrates the client steer. The way ClientMatch steers the clients depends on whether the clients are 802.11v 802.11v is an IEEE standard that allows client devices to exchange information about the network topology and RF environment. This information is used for assigning best available radio resources for the client devices to provide seamless connectivity.-capable.

Steering for 802.11v-capable Client

To steer 802.11v-capable clients, ClientMatch triggers the AP to send out an 802.11v BSS Basic Service Set. A BSS is a set of interconnected stations that can communicate with each other. BSS can be an independent BSS or infrastructure BSS. An independent BSS is an ad hoc network that does not include APs, whereas the infrastructure BSS consists of an AP and all its associated clients. transition management request to the client and waits for a response.

Steering for Non-802.11v-capable Client

To steer non-802.11v-capable clients, ClientMatch triggers all neighboring AP radios (except the intended destination) to block the client from associating for 5 seconds. 2 seconds after that, the currently associated AP sends an 802.11 802.11 is an evolving family of specifications for wireless LANs developed by a working group of the Institute of Electrical and Electronics Engineers (IEEE). 802.11 standards use the Ethernet protocol and Carrier Sense Multiple Access with collision avoidance (CSMA/CA) for path sharing. deauthentication management frame to the client. When the client tries to reassociate, only the intended AP radio allows the client to associate with it.

ClientMatch Events

Aruba Central allows to view Client Match Events. See Viewing ClientMatch Events.