XOS upgrade on MLAG peers

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  • Updated 3 years ago
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Hi everybody.

Does any recomendation about upgrading XOS on MLAG peers? Should I disable ISC link between peers or it just an ordinary upgrade like download/install/reboot?
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eyeV

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Posted 3 years ago

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Naresh, Employee

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Hi,

There is no need to disable ISC link between the MLAG peers. Please go ahead and upgrade the switches normally like download, install and reboot. 
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eyeV

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Ok. Thanks. I'm overexcited a little. )
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Jai Sae

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is there are any downtown required?
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eyeV

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I've done it in maintain window. You can reboot MLAG-peer one after another without any network outage if you network well designed.
(Edited)
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Henrique, Employee

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Hi eyeV,

You can load the EXOS image on both peers and install it, then reboot one peer and wait for MLAG peer to get in sync/up. After that, reboot the other peer. 

I had to do that (in a MW) for about 30-40 MLAG pairs (60-80 units) and worked without any issue. 

During the process, the peers will be temporarily in different versions and that won't be an issue.