Q: 19
A customer has two Cisco 550B WLCs that manage all the access points in their network and provide
N+1 redundancy and load balancing. The primary Cisco WLC has 60 licenses and the secondary Cisco
WLC has 40. The customer wants to convert the N+1 model to an HA model and provide SSO.
Configuration must be performed during a maintenance window. After performing all the
configurations on both controllers, the config redundancy unit secondary command is issued on the
secondary Cisco WLC and it fails. Which parameter needs to be in place to complete the
configuration?
Options
Discussion
Option B is right here. Secondary WLC must have at least 50 base licenses for HA SSO to work, otherwise the redundancy config won't go through. Ran into that in practice labs, pretty sure that's the blocker.
Ran into this in a similar exam question, B. The secondary WLC needs at least 50 base licenses for HA SSO config to work. Could be tricky if you forget about the licensing requirement.
So if the command fails on the secondary WLC, is it always because of license count or could mis-cabling (like RP port) cause similar issues? Curious if B is always the blocker here.
D imo, since SSO has to be enabled for HA to actually work. I get why B trips people up, licensing is always a pain with Cisco, but if SSO isn't on the config step just won't complete. Open to other takes though.
B, not D. The secondary WLC needs at least 50 base licenses or the HA config won't work.
D tbh, Cisco makes you enable SSO for proper HA setup so I'd expect that step to be critical. License stuff is confusing, but config won't work until SSO's on if you ask me.
B
Probably B. I saw a similar question in the official guide, so would double-check WLC license requirements there.
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