In session availability, the Wireless Availability report displays the state of both the tunnels — active tunnel and backup tunnel — on both the primary and secondary wireless controllers.
The report uses a Color Legend to indicate the tunnel state:
In the report, each AP is represented by a box.
Note
The current controller is the one on which the AP Availability report is viewed.For the ease of understanding, take the example of the following scenario:
If you open the Wireless AP Availability report on Controller2, the report will appear as follows:
In the above example, the circled AP has established a backup tunnel to the foreign (secondary) controller, and an active tunnel to the local (Primary) controller.