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System default is added with name "band_steering_enable" to track band steering status, whether enabled/disbaled.

Band Steering Use cases

• RSSI Threshold for client devices which support both 2.4GHz and 5GHz -

Pre-association Band steering:

a. When SNR of client received by AP/Gateway in 2.4GHz band is more than the threshold, then AP blocks the 2.4GHz band for the client and informs client to probe request to 5GHz.

b. If the client device continues to probe request to 2.4GHz band, AP blocks the response in 2.4GHz until client device is ready to connect to 5GHz.

c. Sometimes client devices continues to probe request to 2.4GHz though AP blocks its response, in this case, after blocking a considerable number of times during a time period, AP enters backs off period and allows client to connect to 2.4GHz. For this period, AP does not try to steer the client to 5GHz again.

Post-association Band Steering:

a. Client has associated with a non-preferred band, SNR is checked if it is above threshold. If it is above threshold, client is disassociated from the band and Steered to preferred band using Pre-association procedure.

Architecture

• Layout

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