Designing Cisco Enterprise Wireless Networks (ENWLSD) — Question 205

A customer is migrating from a legacy Cisco AireOS WLC to a new Cisco 9800 IOS XE WLC with Cisco 9100 APs. The new APs must associate to the Catalyst 9800 WLC, and wireless clients must seamlessly roam between the old and new WLCs even during SSO. The new Catalyst 9800 WLC deployment is configured to use SSO. Which command must be added to meet the requirements?

Answer options

• A. С9800 (config) # ip default-gateway
• B. C9800 (config) # management gateway-failover enable
• C. C9800# chassis redundancy ha-interface local-ipremoteip
• D. C9800# wireless mobility mac-address

Correct answer: D

Explanation

The command 'C9800# wireless mobility mac-address' is necessary to ensure that the new APs can maintain client sessions and facilitate seamless roaming between the old and new WLCs. The other options do not address the requirement for client mobility and roaming capability across the two different WLCs.