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Forum Replies

  1. Hi Rene,
    I have couple of questions here…
    Consider a stack of 2 switches. Do We need to enable spanning tree on the stack for connecting other switches on this stack, in a redundant manner ?
    Also How does the IOS upgrade happen on the member switches in stack? Would the upgrade on master take care the member switches too?

  2. Hi Ashok,

    You don’t need STP for the connections between the switches in the stack, the stack is seen as one “logical” switch.

    If you want to upgrade the IOS image then you should copy the image to the flash memory of all your switches, then configure the master switch to boot the new image and reload the switches. Cisco has a good document with some examples:

    https://www.cisco.com/c/en/us/support/docs/switches/catalyst-3750-series-switches/64898-upgrade-3750-stack.html

    Rene

  3. Yes that’s clears my doubt. Thanks a lot.

  4. great thank you for your help and great explaination.

  5. Thanks for that info. It’s still kind of odd how you always have access to the master CLI regardless of which switch you’re consoled into. There’s some voodoo going on there.

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