My old switch software version is c3750-ipbase-mz.122-35.SE5 and model number is WS-C3750-48TS-S and
my new switch Software version is c3750-ipservicesk9-mz.122-50.SE5.bin and model number is WS-C3750V2 . I want a compatible (prefer same) version of IOS which works on both the switches as both the switch will be in a stack..
Minimum version for C3750v2 is 12.2(50)SE1, so you need to use at least this version on the C3750 & C3750v2 if you want to stack them (you need to have the same version on each switch). Be careful too to have the same feature on the 2 switches (you have to choose between IP base or IP services ).
Can i use ...IP Base on 1 switch and IP Services on another switch .....
will it work if i make satck of these 2 switches ?
if no then what can i do to make IP servies on old switches to match with new switch?
Actually, if you had 2 x c3750, it would be possible to use 2 different feature set.
In the case of a mix of C3750 & C3750v2, it is not totally clear; according to peaople on other posts, it is necesasry, but the best is to test by yourself. The minimum will be to have the same IOS version on the 2 switches. What you could test is:
Test #1: upgrade the C3750 into version 12.2.50(SE5) IP Base, then test the stack (I guess there is no problem of memory on the C3750). Enter command #sh switch to check the state of the switches in the stack
Test #2: if it doesn't work: you can try using the IP Base feature on the C3750v2 (so it is necessary to use a new image file), or to upgrade the C3750 with IP Services (but it could be a problem of licence).