ExtremeSwitching (EXOS)

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Configure stacking redundancy minimal maximal

  • 1.  Configure stacking redundancy minimal maximal

    Posted 09-25-2018 17:14
    Hello,
    I have a stack of 8 extreme switches. Their roles are this
    Switch 1 master (x670)
    Switch 2 standby (x460g1)
    Switch 3 standby (x460g1)
    Switch 4 standby (x460g1)
    Switch 5 standby (x460g1)
    Switch 6 standby (x460g1)
    Switch 7 standby (x460g1)
    Switch 8 standby (x460g1)
    They are in a ring configuration, slots 1 and slot 8 both have core licenses.

    I wanted to set the stack to have a backup node.

    So I issued the command, configure stacking node address (appropriate slot's mac) master-capability OFF for slots 2 thru 7

    I issued configure stacking node address master-capability ON for slot 8

    I then issued the command configure stacking redundancy minimal
    Thinking that master-capability on 2 nodes (slot 1 and slot 8 in my case) would be the logical choice.

    I scheduled a reboot for after hours and found the stack to be this way: the stack came up but slot 2 had license mismatch and didn't have a role. Perplexing.
    I had to again issue the command conf stacking node address (slot 2) master-capability OFF and reboot that node individually to get it to come back up.

    Stack is now this way: As you can see slot 8 is not a backup.

    Switch 1 master
    Switch 2 standby
    Switch 3 standby
    Switch 4 standby
    Switch 5 standby
    Switch 6 standby
    Switch 7 standby
    Switch 8 standby

    1) should I try configure stacking redundancy maximal (instead of minimal that I tried)?

    2) Can it be slot 1 and slot 8 for a master and backup situation? I know typically it would likely be slot 1 and 2 but that's not where our core license is. We are using slot 1 and slot 8.

    Thank you,
    Sarah



  • 2.  RE: Configure stacking redundancy minimal maximal

    Posted 09-26-2018 04:16
    Hello Sarah,

    I think that all steps before [i] were correct, then you need to check configuration with command


  • 3.  RE: Configure stacking redundancy minimal maximal

    Posted 09-26-2018 04:16
    Thank you for the info, I'll give it a try!