Configuring Revertive Switchover

Context

After an active/standby AC switchover, the standby AC replaces the active AC and sets up a CAPWAP link with the AP to provide services. The AP periodically sends Primary Discovery Request packets to detect active AC status. If revertive switchover is enabled on the standby AC, the AP triggers a revertive switchover when it detects that the active AC recovers. The AP disconnects from the current AC and sets up a new CAPWAP link with the active AC. Resources on the standby AC are released and the standby AC then continues to provide backup services.

Revertive switchover needs to be enabled only on the standby AC.

Procedure

Run system-view
The system view is displayed.
Run wlan
The WLAN view is displayed.
Run undo ac protect restore disable
Revertive switchover is enabled.

By default, global revertive switching is enabled.

If revertive switchover is disabled on the standby AC, traffic of an AP cannot be switched back to the original active AC even when the link between the original active AC and the AP restores.