Configuring Channel Switch Announcement

When an AP changes its channel, an existing wireless clients may “time out” while waiting to receive a new beacon from the AP; the client must begin scanning to discover the new channel on which the AP is operating. If the disruption is long enough, the client may need to reassociate, reauthenticate, and request an IP address.

WhenCSAChannel Switch Announcement. The CSA element enables an AP to advertise that it is switching to a new channel before it begins transmitting on that channel. This allows the clients, which support CSA, to transition to the new channel with minimal downtime.is enabled, the AP does not change to a new channel immediately. Instead, it sends a number of beacons (the default is 4) which contain theCSAChannel Switch Announcement. The CSA element enables an AP to advertise that it is switching to a new channel before it begins transmitting on that channel. This allows the clients, which support CSA, to transition to the new channel with minimal downtime.announcement before it switches to the new channel. You can configure the number of announcements sent before the change.

客户必须支持CSAChannel Switch Announcement. The CSA element enables an AP to advertise that it is switching to a new channel before it begins transmitting on that channel. This allows the clients, which support CSA, to transition to the new channel with minimal downtime.in order to track the channel change without experiencing disruption.

The following procedure describes how to configureCSAChannel Switch Announcement. The CSA element enables an AP to advertise that it is switching to a new channel before it begins transmitting on that channel. This allows the clients, which support CSA, to transition to the new channel with minimal downtime..

1.In theManaged Networknode hierarchy, select themanaged devicecontaining the AP group.

2.Navigate to the配置>AP Groupspage.

3.Select the AP group to be configured.

4.SelectRadiotab from the AP group menu and clickAdvancedaccordion.

5.SelectEnabledfrom theCSAdrop-down list. This option can be enabled or disabled separately for 2.4GHzGigahertz.and 5GHzGigahertz.radios.

6.ClickSubmit.

7.ClickPending Changes.

8.In thePending Changeswindow, select the check box and clickDeploy Changes.