11-21-2011 06:39 AM - edited 03-07-2019 03:30 AM
Hi all,
if I read the Datasheet of Catalyst 3750X-Series-Switches it is possible to connect a new X-Switch to an existing and old Catalyst 3750-Series Stack.
What kind of requirements are needed? Only same IOS-Version in the hole Stack and if possible same Feature-Set? .... like in a normal NOT mixed Stack?
regards,
Chris
11-21-2011 07:19 AM
Hi
"Cisco Catalyst 3750-E and Catalyst 3750-X StackWise Plus and Cisco Catalyst 3750 StackWise switches can be combined in the same stack. When this happens, the Cisco Catalyst 3750-E, or Catalyst 3750-Xswitches negotiate from StackWise Plus mode down to StackWise mode. That is, they no longer perform destination stripping. However, the Cisco Catalyst 3750-E and the Catalyst 3750-X will retain its ability to perform local switching."
Take from:
It's worth of reading.
11-21-2011 08:02 AM
Right, die stacking-bandwith will be reduced from 64Gbps to 32Gbps.
But more interesting is the Patch-, Softwaremanagement and the stability of the stack.
The bootvar is different, So you can not use the "archive download-sw" command to update your stack because you have to use different tar-files. You have to disable the auto-copy-function. What is with bugs? Fixed in the X-series-IOS but not in the "old/normal"-IOS... and now?
So I don' think, that it is a good idea to use a mixed stack.
11-21-2011 01:08 PM
If your plain 3750 is using, for example, IP Services feature set then you can get an IP Services feature set for the 3750E/3750X. I wouldn't recommend using the "universal" when you are mixing them together.
Another thing, 3750/3750G with 16 mb of flash is only limited to 12.2(55)SE and later. You can't use 12.2(58)SE or 15.0(1)SE.
11-22-2011 02:36 AM
You are right, I didn't pay attention to the size of the flash.
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