ExtremeSwitching (EXOS)

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Stacking time different on slot 2

  • 1.  Stacking time different on slot 2

    Posted 10-22-2015 12:12
    Hi,

    We have three switches in a stack, slot 1, slot 2 and slot 3. The time is the same on slot 1 and slot 3 if a telnet to slot 1 and slot 3 and show switch. But if I telnet to slot 2 and do a show switch the time is different and there is no time zone.

    How do I sync the time between all three slots?

    Thanks
    Ian


  • 2.  RE: Stacking time different on slot 2

    Posted 10-22-2015 12:18
    I encountered the same problem last night. I configured the time on the master and saved. I checked the time on slot 3 again and it was synced. I am curious as to why the time was off though?


  • 3.  RE: Stacking time different on slot 2

    Posted 10-22-2015 12:35
    Hi,

    Did you have any issue with slot failures while you had different times on the slots?

    Thanks
    Ian


  • 4.  RE: Stacking time different on slot 2

    Posted 10-22-2015 18:48
    Yes, the switch in question failed twice this past week. I can not say if the time difference was a cause or a symptom though.

    Were you able to correct the time the same way I did?


  • 5.  RE: Stacking time different on slot 2

    Posted 10-23-2015 03:45
    Hi David,

    I am going to correct the time through a change window this weekend. Just worried to change it now and there is another impact. I must say Extreme switches work great and are bullet proof but when it comes to stacking i am a but worried.

    It would be nice if someone from Extreme could provide feedback on the time issue and if this could cause a slot failure.

    Regards
    Ian



  • 6.  RE: Stacking time different on slot 2

    Posted 10-23-2015 06:16
    Hi Ian,

    Could you provide the show switch information ?

    Thanks,
    Suresh.B


  • 7.  RE: Stacking time different on slot 2

    Posted 10-23-2015 06:19


  • 8.  RE: Stacking time different on slot 2

    Posted 10-23-2015 06:29
    Hi,

    Thanks for the link, just wanted to ask again if the time is correct between slots could this cause a slot reboot?

    Regards
    Ian


  • 9.  RE: Stacking time different on slot 2

    Posted 10-23-2015 06:47
    Hi Ian,

    Time zone mismatch will not cause slot reboot.

    Thanks,
    Suresh.B



  • 10.  RE: Stacking time different on slot 2

    Posted 03-11-2016 17:04
    Hi, I have 4 switches Summit X460 in stack mode, master and backup are time synchronized but the other stanby nodes are out of time. I use the version 15.7.1.4 patch1-2. what action do I have to do in order to fix this?



  • 11.  RE: Stacking time different on slot 2

    Posted 03-12-2016 03:24
    Hi Jhonn,

    The defect has been resolved in the following versons:

    • EXOS 16.1.1
    • EXOS 15.7.2
    • EXOS 15.6.2 Patch 1
    • EXOS 15.5.4


  • 12.  RE: Stacking time different on slot 2

    Posted 03-14-2016 16:33
    Hi Brad,

    What recomendation should I follow, do I have to do an upgrade to 16.1.1 or a downgrade?



  • 13.  RE: Stacking time different on slot 2

    Posted 03-14-2016 16:33
    Hi Jhonn,

    15.7.2 came out after your 15.7.1 patch 1-2 so that would be the version that I would recommend. As always, with any version of code, it should be tested in a pre-production environment and then rolled out when sufficient testing has been completed in order to help mitigate against any unforeseen circumstances.

    Brad