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  • 1.  Upgrade code - 21.4R3.15 recalled, but is only version available for download

    Posted 01-26-2023 11:59

    Trying to upgrade EX3400s and QFX5100s.  The JTAC-recommended version is 21.4R3.

    However, 21.4R3.15 has been recalled.    JTAC says to use 21.4R3.16, but .16 is not available for download.   (there is a .16 for QFX5100 5e, but we don't have 5e's).

    Downloading "QFX 5 Series Switch  21.4R3" yields only the recalled v15.    Same for "EX2300(-C) and EX3400 Series 21.4R3".

    Is it really possible that the only downloadable code version for 21.4R3 is recalled?!  Where is 21.4R3.16 ?    

    Already have a JTAC case open, but surely someone in the Community has encountered this.

    help! thanks.
    -noemi

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    NOEMI BERRY
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  • 2.  RE: Upgrade code - 21.4R3.15 recalled, but is only version available for download

    Posted 01-27-2023 10:17
    We've had success (although only for a brief period of a few months) with 21.4R2-S1.4 on ex4300s.  However we were forced to upgrade to 21.4R3-S2.4 on ex4600s by a serious bug in 21.4R2 for the EX4600s that consistently causes random AE interfaces to fail to come up after boot, but only on ex4600s.  That version seems stable as well,  but again, only for about 3 weeks runtime. 
    I have decided to use that same version (as ex4600) on our new ex4400s and our handful of ex2300s as well.  We don't have real runtime on any of those yet to be able to endorse that version on those platforms yet. 
    BUT... Be advised that our Juniper SE recommended 21.2R3-S2.  He stated: "It's widely deployed across EX in my customer base and been very stable".    I didn't go with this "recommended" version for the simple reason that the versions I chosen, have an addition year before they go 'end-of-life'.

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    ROBERT HEALY
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  • 3.  RE: Upgrade code - 21.4R3.15 recalled, but is only version available for download

     
    Posted 01-30-2023 04:57

    Hi Noemi,

    Version 21.4R3.15 is only recalled for the QFX5110 and QFX5120, iirc it is not fully recalled for all platforms.
    For MX, EX, SRX etc 21.4R3.15 is no problem, though I am not sure about QFX5100. The KB article only lists 5110, but 5120 is definitely also involved in the recall as that one also no longer has 3.15 available and only has 3.16 available for download.

    Hopefully JTAC will be able to give you a clear answer, but if I may give a recommendation: if you want to use 21.4R3 on your QFX5100 I would recommend downloading 21.4R3 and then the latest SR (I believe it is 21.4R3-S2 at the moment) as this will definitely have all the fixes that 3.15 was recalled for and some additional fixes as well.