can ws-c2960s stack with WS-C2960X-?

[mandy voon]

can ws-c2960s-24ts-l & ws-c2960s-24ps-l ( existing  environment)

stack with WS-C2960X-24TS-L ? since ws-c2960s-24ts-l is going to AEOS.

how many switches can be stack ?

[Reza Sharifi]

Yes, it is supported:

from the data sheet:

FlexStack-Plus is backward compatible with 2960-S and FlexStack. Mixing 2960-X and 2960-S members in a stack is supported. When the stack membership is mixed with 2960-X and 2960-S models, FlexStack-Plus falls back to FlexStack capabilities of 40Gbps stack bandwidth and four members maximum per stack.

Link:

http://www.cisco.com/c/en/us/products/collateral/switches/catalyst-2960-x-series-switches/white_paper_c11-728327.html

HTH

[Leo Laohoo]

how many switches can be stack ?

As long as a 2960S as part of the stack then the maximum switches in a stack is four.  

If the entire stack is exclusively 2960X then you can stack up to eight.