ExtremeSwitching (EXOS)

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  • 1.  Replacing MSM: Software incompatible

    Posted 07-27-2015 16:36
    We replaced an MSM on a BD8810. When we first installed it, It upgraded firmware and then came online. We had though that it had just installed new firmware to the new card and it was working as expected. However, now I have noticed that it actually pushed the updated firmware to the primary (currently unused) partition on the working MSM and now MSM-A and MSM-B have different firmware. The active MSM is using the secondary image at 12.2.2.7 (primary = 12.5.4.5), while the inactive MSM has both images at 12.5.4.5. If the active MSM fails will it now reboot because the images are incompatible?


  • 2.  RE: Replacing MSM: Software incompatible

    Posted 07-27-2015 16:46
    hello Craymond

    So the switch is booted off the master secondary image on 12.2.2.7 and you just uploaded 12.5.4.5 into the primary image of the active MSM and it is then also added to the primary container of the secondary MSM.

    If that is correct you can do a show switch and see which image is set on next reboot. Yes as of right now if the primary fails it will require an outage for the secondary to load the new image. In order for the switch to have a new image it requires a reboot. ( yes there are certain instances where you can do it hitlessly)

    If you want the secondary MSM to be just like the primary where it also has 12.2.2.7 in the primary then you can do a sync command to make them both the same. The code and configs. Note that this will affect the CPU and may cause delay in some protocols so I recommend doing it on a off hour.

    I hope that helps

    P


  • 3.  RE: Replacing MSM: Software incompatible

    Posted 07-27-2015 17:06
    Thanks Paul-
    We didn't actually upload new firmware. All we did was install the blade, and it pushed the firmware to the active MSM's inactive partition, or it grabbed the image from the inactive partition and installed it. I don't remember the secondary version before hand, but I do remember the log saying something about syncing software versions. I also typed the image version wrong. the current active version is 15.2.2.7 not 12.2.2.7! Would doing a sync be better than downloading and installing the images to the inactive MSM?



  • 4.  RE: Replacing MSM: Software incompatible

    Posted 07-28-2015 09:00
    The Synchronize command is just designed for this purpose, it syncs the backup MSM with the active MSM to have the same software versions and files (like policy files and so on).


  • 5.  RE: Replacing MSM: Software incompatible

    Posted 07-28-2015 11:44
    Hello Craymond

    Sync makes the two MSMs exactly the same without having to connect to a TFTP server and uploading and downloading the files to and from the MSMs.

    You absolutely can download the code to the other MSM if you like with no issues.

    Thanks
    P


  • 6.  RE: Replacing MSM: Software incompatible

    Posted 07-28-2015 11:44
    Thanks for the info.


  • 7.  RE: Replacing MSM: Software incompatible

    Posted 07-28-2015 11:44
    Were you able to get everything sorted out with the info here in the thread?
    Got both MSMs In Sync and all versions sorted out? Here's an example from one of my lab cores.
    # show switch

    SysName: