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  • 1.  5900AF-48XG-4QSFP IRF upgrade ISSU not compatible

    Posted Feb 05, 2021 09:19 AM

    I have two 5900AF-48XG-4QSFP switches in IRF running 7.1.045, Release 2422P01.

    I want to upgrade in 7.1.045, Release 2432P06 without complete downtime. I mean upgrade one switch and the second one just after so server with dual connection will continue to have network.

    ISSU can not be use as compatibility matrix not OK. I wonder if there is a way to manually upgrade / reboot one switch and once first switch upgraded upgrade / reboot the second one so at any time at least one switch is up and running.

    Any tips ? Any advice ?



  • 2.  RE: 5900AF-48XG-4QSFP IRF upgrade ISSU not compatible

    Posted Feb 05, 2021 09:30 AM

    Hi @Erik91 !

    Please, check the following document, I think one of the examples listed there is what you are looking for - https://higherlogicdownload.s3.amazonaws.com/HPE/MigratedAttachments/605B9B5B-CA69-431D-A8F6-B53A287B6A9A-1-HPE%2059xx%20FlexFabric%20ISSU%20VRD.pdf , section "ToR compatible reboot upgrade/incompatible upgrade process overview"

     

     



  • 3.  RE: 5900AF-48XG-4QSFP IRF upgrade ISSU not compatible

    Posted Feb 05, 2021 11:12 AM

    Hi Ivan_B,

    Thanks for your answer , it is helpfull.

    Now I understand that my main concern is that I have IRF configured without MAD and MAD is mandatory to do such kind of upgrade to avoid the split brain.  Am I right ?



  • 4.  RE: 5900AF-48XG-4QSFP IRF upgrade ISSU not compatible

    Posted Feb 06, 2021 02:00 AM

    Yes, BFD MAD is an essential part of IRF setup. It is the protection mechanism that will prevent split-brain scenario during the upgrade.



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