Designing Cisco Enterprise Wireless Networks (ENWLSD) — Question 95

WLC SSO is set up between two WLCs in a service provider network serving public spaces. On WLC failover, it is noticed that only about half of the original client count is now showing on the secondary WLC, although it is currently showing the role as active. Which design side case explains the issue?

Answer options

• A. The secondary WLC platform does not support the required client count.
• B. The WLCs had not completed database sync before the primary failure.
• C. SSO is not configured correctly.
• D. Some client sessions were in WebAuth-Req state before failover.

Correct answer: D

Explanation

The correct answer is D because if some client sessions were in the WebAuth-Req state before the failover, they would not transfer to the secondary WLC, resulting in a reduced client count. Option A is incorrect as it does not account for the current active status of the secondary WLC. Option B is also wrong since the issue specifically relates to the state of client sessions, not database sync. Option C is not accurate because the configuration may be correct, but the client sessions' state is the root cause.