Upgrading 3850 stack 1 at a time

[richard.goode]

Hi all,

I have a stack of 2 x 3850's running 3.7.1 and want to remotely upgrade them to 3.7.2.  Most servers on the stack are dual homed to both switches so it is fairly safe for me to do one switch at a time but not both together.

I've tried issuing a "software install file xxxxx switch 2" but it aborts saying that the two switches will have incompatible versions.

How can I achieve a staggered upgrade?

Thanks,

Richard

[Leo Laohoo]

Not possible because 3650/3850 do NOT support Rolling Stock Upgrade (RSU).

[richard.goode]

Ok, thanks Leo.