Mandatory, Supported, Disabled

The black and white from Cisco defines that the use of Data Rates options to specify the rates at which data can be transmitted between the access point and the client.

The data rates are available:

• 802.11a—6, 9, 12, 18, 24, 36, 48, and 54 Mbps

• 802.11b/g—1, 2, 5.5, 6, 9, 11, 12, 18, 24, 36, 48, or 54 Mbps

For each data rate, choose one of these options:

Mandatory—Clients must support this data rate in order to associate to an access point on the controller. Why force 11Mbps on an SSID, if not only to enforce better performance.

Supported—Any associated clients that support this data rate may communicate with the access point using that rate. However, the clients are not required to be able to use this rate in order to associate.

Disabled—The clients specify the data rates used for communication.

The notes say the clients must support and not operate at this rate and the supported option identifies a not required. I think I will attempt to test the overall enforcement and remove any ambiguity. I know this is one that I’ve always assumed what the options mean…

More to follow

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