Question 910
At East Student Center, a downstream access switch has one LAG member to each VSX chassis but the bundle never forms. What recurring protection should accompany this configuration?
Explanation
Correct Answer
For East Student Center, the decisive mechanism is VSX MC-LAG. MC-LAG provides one downstream LAG across two independently managed VSX peers. Stage MC-LAG moves to avoid temporary duplicate standalone loops is an enduring limitation on the operational risk, not simply a one-time passing test.
Incorrect Answers
This is relevant to VRRP redundant gateway, where VRRP supplies virtual first-hop gateway failover between eligible routing peers In the East Student Center case, A precaution for another failure mode is not the enduring boundary needed here. The specific mechanism is mC-LAG provides one downstream LAG across two independently managed VSX peers
This is relevant to Loop protection, where loop detection complements STP by containing accidental edge loops In the East Student Center case, A precaution for another failure mode is not the enduring boundary needed here. The specific mechanism is mC-LAG provides one downstream LAG across two independently managed VSX peers
This is relevant to AOS 10 gateway cluster, where an AOS 10 gateway cluster improves tunneled WLAN availability but still needs correct forwarding and policy In the East Student Center case, A precaution for another failure mode is not the enduring boundary needed here. The specific mechanism is mC-LAG provides one downstream LAG across two independently managed VSX peers