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New Member

Mixed 2960 S/X Stack speed

i have a 2960s 3 switch stack. 

i purchased a 2960x switch to add to the above stack.

i plan to upgrade the 2960s stack IOS version to the  version  on the  2960x switch and then add the new switch to the stack.

i have read that i also need to change the default stack speed with this command "switch stack port-speed 10"

however i didnt understand when to execute the command in my situation.

if i run this on the new 2960X switch before adding it to the stack will the command have affect after joining the stack and having all its config replaced by the stack config?





Well I think the stack port

Well I think the stack port speed should actually be 40, because the 2960S is 40G and the 2960X is 80G. Not sure if it matters when but  I would say do it before adding it to the stack.

New Member




i my case the existing stack is made up of 3 2960S and i want to add a 2960X.

do i need to execute the above command ? and on which switch/stack

That's interesting the data

That's interesting the data sheet and Q&A has 40G for the 2960S and 80G for the 2960X. In any case you would need to configure the 2960X to use the speed of the 2960S since the 2960S isn't capable of supporting the stacking bandwidth of the 2960X.