11-08-2013 02:04 AM - edited 03-07-2019 04:29 PM
Hello.
Is it possible to do stacking between 48 ports & 24 ports 3750 switches?
11-08-2013 02:23 AM
Yes it is possible .
Stacking Rules
Below I list what you should know and understand before stacking.
Regards
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11-08-2013 05:12 AM
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You cannot mix software feature sets. You cannot have some switches with LAN Base and some with IP Services for example.
The Cisco StackWise technology requires that all units in the stack run the same release of Cisco IOS Software.
My understanding is you can mix IP Base and IP Services. (I've done it on the original series, but I believe it's also true on the -X series too. Can save $, especially in larger stacks. NB: if you only have one stack member running IP Services, and it fails, stack will then run IP Base. So, for redundancy, good idea to have two stack units with IP Services.)
Also, my understanding is you can mix IOS versions, what's important is the version of StackWise itself. (NB: Running the same IOS version insures the StackWise version matches, so it's a good idea to do so.)
11-08-2013 05:43 AM
Hi,
My understanding is you can mix IP Base and IP Services. (I've done it on the original series, but I believe it's also true on the -X series too. Can save $, especially in larger stacks. NB: if you only have one stack member running IP Services, and it fails, stack will then run IP Base. So, for redundancy, good idea to have two stack units with IP Services.)Also, my understanding is you can mix IOS versions, what's important is the version of StackWise itself. (NB: Running the same IOS version insures the StackWise version matches, so it's a good idea to do so.)
I am totally agree with your points specially to save $'s.
But from cisco , It was always a recommendation.
According to this document:
Cisco IOS Software Images Must Be Identical
The Cisco StackWise technology requires that all units in the stack run the same release of Cisco IOS Software. When the stack is first built, it is recommended that all of the stack members have the same software feature set - either all IP Base or all IP Services. This is because later upgrades of Cisco IOS Software mandate that all the switches to be upgraded to the same version as the master.
Reagrds
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