Implementing and Operating Cisco Enterprise Network Core Technologies (ENCOR) — Question 209
A company has an existing Cisco 5520 HA cluster using SSO. An engineer deploys a new single Cisco Catalyst 9800 WLC to test new features. The engineer successfully configures a mobility tunnel between the 5520 cluster and 9800 WLC. Clients connected to the corporate WLAN roam seamlessly between access points on the 5520 and 9800 WLC. After a failure on the primary 5520 WLC, all WLAN services remain functional; however, clients cannot roam between the 5520 and 9800 controllers without dropping their connection. Which feature must be configured to remedy the issue?
Answer options
- A. mobility MAC on the 5520 cluster
- B. mobility MAC on the 9800 WLC
- C. new mobility on the 5520 cluster
- D. new mobility on the 9800 WLC
Correct answer: B
Explanation
The correct answer is B, as configuring mobility MAC on the 9800 WLC allows seamless roaming by enabling the 9800 to recognize and maintain client sessions during failover scenarios. Options A and C are incorrect because they pertain to configurations on the 5520 cluster, which do not address the issue with the 9800 WLC. Option D is also incorrect since it focuses on new mobility rather than the necessary mobility MAC feature.