300-425 · Question #121
A network engineer must design a new Cisco wireless solution that contains three Cisco 9800-40 WLCs. WLC1 and WLC2 will be combined into one logical unit with SSO and a backup WLC named WLC3 will be…
The correct answer is A. WLC1 and WLC2. Link Aggregation (LAG) must be configured on both members of the SSO pair so that, in a failover, the standby controller inherits the same aggregated port-channel. The backup controller (WLC3), which joins via a mobility tunnel and isn’t part of the SSO pair, does not require…
Question
A network engineer must design a new Cisco wireless solution that contains three Cisco 9800-40 WLCs. WLC1 and WLC2 will be combined into one logical unit with SSO and a backup WLC named WLC3 will be joined by using a mobility tunnel. Link redundancy between the WLCs and the switches is required. Which WLCs must the design provide connectivity to the network equipment for LAG to be effective in an SSO failover scenario?
Options
- AWLC1 and WLC2
- BWLC2
- CWLC1, WLC2, and WLC3
- DWLC1
How the community answered
(63 responses)- A68% (43)
- B5% (3)
- C19% (12)
- D8% (5)
Explanation
Link Aggregation (LAG) must be configured on both members of the SSO pair so that, in a failover, the standby controller inherits the same aggregated port-channel. The backup controller (WLC3), which joins via a mobility tunnel and isn’t part of the SSO pair, does not require LAG.
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