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Upgrading 2920 stack with P IMC

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  • 1.  Upgrading 2920 stack with P IMC

    Posted Nov 08, 2015 08:16 AM

    Hi,

    I'm currently in the process of upgrading our 2920's from WB.15.12.0015 to WB.15.17.0007 and I'm having quite some issues with the 3+ switches stacks.

     

    I'm using IMC 7.0 to deploy the firmware and it has worked just find for standalone switches as well as a 2 switch stacks.

    I'm not upgrading my second 3 switches stack and while I thought the first time was some sort of glitch, I encountered the same behavior now.

    From my understanding, the master should upgrade and then the rest of the stack should upgrade one switch by one.

    The behavior I see is;

    Deploy software via IMC - Member 3 upgrades - Member 3 is kicked out of the stack - Upgrade stops

    Now I can push the software again so that; 

    Member 2 upgrades - Member 2 is kicked out of the stack - Upgrade stops

    Now I can push the software again so that; 

    Member 1 upgrades - it reboots - after a few minutes the stacks is operationnal again.

     

    Is that normal? I got a burned a bit on the second stack I upgraded since my uplinks are on member 2 and 3 - I expected the Master to be upgrade last since it was the case on the first stack I upgraded but in my case (master was member 2), it really seems to upgrade from last member to first.

    I'd like to be able to upgrade my stacks with a bit more confidence and without having to push the software 3 times.

     

    Thanks to anyone who could shed some light on the process !


    #stack
    #upgrade
    #2920
    #imc


  • 2.  RE: Upgrading 2920 stack with P IMC

    EMPLOYEE
    Posted Nov 11, 2015 10:14 AM

    Hello.  I was able to successfully upgrade a 3 member 2920 stack from WB.15.12.0015 to WB.15.17 via IMC 7.1.  The process should be:

    • Software uploaded to commander
    • Commader sync to standby
    • Standy sync to other members

    No member should be "kicked out" of the stack unless there was some kind of error.  Does the log say anything during the upgrade?  I also used a fairly basic config.  If you want to post your config I can try an upgrade with that.


    I 01/01/90 00:35:52 00179 mgr: ST1-CMDR: SME TELNET from 128.44.120.35 - MANAGER Mode
    (several logins from IMC)
    I 01/01/90 00:40:44 00163 update: ST1-CMDR: Firmware image contains valid signature.
    I 01/01/90 00:41:16 00179 mgr: ST1-CMDR: SME TELNET from 128.44.120.35 - MANAGER Mode
    I 01/01/90 00:41:34 00537 stacking: ST1-CMDR: Syncing primary OS to standby started
    I 01/01/90 00:41:35 00150 update: ST1-CMDR: Primary Image updated.
    I 01/01/90 00:42:06 00179 mgr: ST1-CMDR: SME TELNET from 128.44.120.35 - MANAGER
    I 01/01/90 00:42:11 00537 stacking: ST1-CMDR: Syncing primary OS to standby complete
    I 01/01/90 00:42:13 00179 mgr: ST1-CMDR: SME TELNET from 128.44.120.35 - MANAGER Mode
    W 01/01/90 00:42:35 03257 stacking: ST1-CMDR: Reboot of a0b3cc-aaea00 Successful
    W 01/01/90 00:42:35 03257 stacking: ST1-CMDR: Reboot of 2c59e5-0bfbc0 Successful