Designing Cisco Enterprise Wireless Networks (ENWLSD) — Question 144

A customer with two Cisco 5520 WLCs that work as a primary and secondary had some switching issues and the primary controller lost connectivity. Immediately all APs went to discovery and joined the secondary controller. After recovering from the issue, the primary controller is online, but no APs return to it. All APs remain in the secondary controller. Which setting advises the APs to return to their primary controller?

Answer options

• A. AP fallback
• B. AP multicast mode
• C. AP heartbeat timeout
• D. broadcast forwarding

Correct answer: A

Explanation

The correct answer is A, AP fallback, which allows access points to return to their primary controller once it is available again. The other options do not specifically address the reconnection of APs to the primary controller after a failover, thus they do not resolve the issue at hand.