I have a question regarding the management redundancy in a 5406R-zl2 chassis. I am running my chassis with 2 management modules (MM1 and MM2). MM1 had issues so I used "redundancy switchover" meaning MM2 is now my active management module.
What happens if I remove MM1 and put a new replacement management module back in the switch? (I am assuming MM2 will remain active and the new MM1 will remain standby get the current firmware and configuration files of MM2).
University of Twente
Whoops, found it after I did some more digging:
If the software version in the hotswapped module does not match the software version in the active module, the following occurs:
Yeah...and to be overly clear documentation should specify that the hotswapped module is actually the standby one (SMM).
A thing I don't understand entirely is, considering what is the subject, what is reported on the Note:
If steps 1-4 are executed how will be possible to fall into what the note reports? the only thing I'm thinking of is that primary (or secondary) Flash on SMM will have a software version that doesn't match with secondary (or primary) on the very same SMM which, on the other hand, matches the one booted on the AMM...Am I wrong?
My hypothesis would be such a situation might occur in case a boot ROM upgrade is needed (i.e. the new module inserted has a much older boot ROM than the current active MM). It might also be a fall-back scenario in case all else fails to go into warm-standby redundancy mode.
I have no data to back up that hypothesis though, and since my own issue is now solved, I'm not going to delve into that any more. I swapped out my failed MM this morning with a new module and it followed steps 1-4 perfectly. The switch is now back running in nonstop switching redundancy mode (without having issued a single command myself).
That's very good Niels! ...mine was just a digression about a documentation's note I personally feel a little bit unclear, nothing very important...the essential was there.
Glad all the procedure you followed was truly flawless.
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