XOS upgrade on MLAG peers

[eyeV]

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?

[Henrique]

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.

[Naresh]

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.

[eyeV]

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

[Jai_Sae]

is there are any downtown required?