Hi CesarPin (GSM), there are some long threads (here and also on HPE Community where VSF was discussed first, some years ago...2017?) explaining what there is behind the "VSF on Aruba 5400R zl2 with dual Management Modules installed" scenario...the story is long because initially (and for long time) a VSF consequence (more than a restriction di-per-sè) was that a Standby MM goes disabled once VSF is up and running, in other terms VSF doesn't support the secondary MM in a dual MMs configuration...that's to say that if you have two Aruba 5400R zl2 with dual MMs installed (set either with Standby or with NonStop Switching redundancy mode of operation) on each chassis and you deploy VSF then both the secondary MMs will be disabled because they aren't supported by the VSF scenario.
Lately (recently) Aruba came with a news: secondary MMs will be supported by VSF but they stay disabled, in any case.
The difference was that, for some years was valid the approach to forcefully disable the secondary MM (those that were used ad Standby) or, at worst, remove them...then this suggestion changed with the recent support statement in a VSF scenario.
Personally I've some doubts about how VSF will deal to software updates (apart being capable of FSU on VSF implemented with two Aruba 5400R zl2) when a chassis has a MM disabled (and, worst, when two chassis have two MMs disabled).
As reference, have look at
this,
this,
this here on Airheads and - on the HPE Community -
this and
this just to start 8-).
Also keep an eye wide open on
this too.
In any case, apart what I wrote you about, please use official and current documentation about VSF and Aruba 5400R zl2 to understand all the details, tips and tricks, pros and cons, restrictions and requirements of this solution.
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Davide Poletto
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Original Message:
Sent: Oct 07, 2021 07:36 AM
From: gaius manera
Subject: Management Module for 5400Rzl2
Hi Everyone,
We have two Aruba 5412Rzl2 and we are planning to configure VSF on both switches.
Now if VSF is configured and up and running on both switches, then all of a sudden one of the management module fails.
1. Will it cause an outage for that switch or will the second management module act as the active management module for the whole switch?
2. Is it recommended or best practice to purchase additional management modules to achieve management module redundancy on switches that are already configured in VSF?
Regards,
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GSM
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