3Com WX1200 3CRWX120695A, WXR100 3CRWXR10095A, WX4400 3CRWX440095A Disabling Idle-Client Probing

238CHAPTER 10: CONFIGURING MAP ACCESS POINTS

Data rate enforcement is useful if you want to completely prevent clients from transmitting at disabled data rates. For example, you can disable slower data rates so that clients transmitting at these rates do not consume bandwidth on the channel at the expense of clients transmitting at faster rates.

Data rate enforcement is disabled by default. To enable data rate enforcement for a radio profile, use the following command:

set radio-profile profile-namerate-enforcement mode {enable disable}

For example, the following command enables data rate enforcement for radio profile rp1.

WX# set radio-profile rp1 rate-enforcement mode enable

The following command sets a 802.11g mandatory rate for service profile sp1 to 54 Mbps and disables rates 1.0 Mbps and 2.0 Mbps:

WX# set service-profile sp1 transmit-rates 11g mandatory 54.0 disabled 1.0,2.0

The following command maps radio profile rp1 to service profile sp1.

WX# set radio-profile rp1 service-profile sp1

After these commands are entered, if a client transmitting with a data rate of 1.0 Mbps or 2.0 Mbps attempts to associate with a MAP managed by service profile sp1, that client is not allowed to associate with the MAP.

Disabling Idle-Client Probing

By default, a MAP radio sends keepalive messages (idle-client probes) every 10 seconds to each client that has an active session on the radio, to verify that the client is still active. The probes are unicast null-data frames. Normally, a client that is still active sends an Ack in reply to an idle-client probe.

If a client does not send any data or respond to any idle-client probes before the user idle timeout expires (see “Changing the User Idle Timeout” on page 239), MSS changes the client’s session to the Disassociated state.