Upgrade from EXOS 15.6.1.4 to 16.1.3.6

[Anil_Godara]

Does this upgrade require intermediate steps or it can be done directly? I mean is it a single-step upgrade or multiple? We have X460-48t switches.

[Steven_Lin]

Anil,
It could be upgrade directly. The only require intermediate steps is upgrade from 12.3.x or below to 15.x.

https://gtacknowledge.extremenetworks.com/articles/Q_A/Upgrade-from-12-X-to-15-X

[Drew_C]

Good point; thanks for bringing that up. As long as the SSH module is installed before the reboot, there shouldn't be any problem with access afterwards.

[Michael_Suggs1]

I just upgraded a 460 to 16.1.3.6 patch 1-9 and i lost my ssh function, be sure to get the ssh mod before you upgrade and enable telnet (if disabled) before the reboot.

[Drew_C]

Anil, that's the newest BootROM available right now. It will work fine with the newest EXOS versions.
I would recommend v16.1.3.6-patch1-11 or even v16.1.4.2-patch1-7 instead of patch1-9 that you've mentioned.