Implementing and Operating Cisco Enterprise Network Core Technologies (ENCOR) — Question 890

A customer has a pair of Cisco 5520 WLCs set up in an SSO cluster to manage all APs. Guest traffic is anchored to a Cisco 3504 WLC located in a DMZ. Which action is needed to ensure that the EoIP tunnel remains in an UP state in the event of failover on the SSO cluster?

Answer options

• A. Use the same mobility domain on all WLCs.
• B. Enable default gateway reachability check.
• C. Configure back-to-back connectivity on the RP ports.
• D. Use the mobility MAC when the mobility peer is configured.

Correct answer: D

Explanation

The correct answer is D because using the mobility MAC ensures that the EoIP tunnel can be established properly even during a failover. Options A and B do not address the specific requirements for maintaining the tunnel state, while option C pertains to physical connectivity rather than logical tunnel management.