Two Access Points (APs) cannot be configured as Wireless Domain Services (WDS) with the same priority. There cannot be two APs working with the same priority in the same subnet mask. This is not a way to have one of them work on standby mode, waiting for the first one to fail. The backup WDS or the AP with lower priority works as the WDS as soon it determines the master WDS is down.
For more information on WDS, refer to Wireless Domain Services FAQ.
For information on how to configure the WDS, refer to Wireless Domain Services Configuration.
Note: If a WDS master with a priority of 200 goes down, a WDS master with a priority 100 on the same subnetwork becomes the master.
Wireless Domain Services (WDS)