Junos OS

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  • 1.  juniper SRX upgrade path from JUNOS 21.4.R3.15 to 23.2R1

    Posted 07-19-2023 10:30

    Hello, I am trying to ascertain the upgrade path on my SRX EX 4100s and 3400s from JUNOS 21.4.R3.15 to 23.2R1 in order to fix the latest high risk CVE vulnerabilities.  The site is well out of date for finding this out.  Can anyone confirm this for me please? 



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    SUSAN COLLINS
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  • 2.  RE: juniper SRX upgrade path from JUNOS 21.4.R3.15 to 23.2R1

     
    Posted 07-20-2023 04:24

    You should be able to upgrade straight to 232R1 as far as a I know.

    What I've always been told is that there's a recommendation of going 2 mainline versions up when you're at a hardened/long term support release (being x.2R3 and x.4R3 at the current numbering scheme), so you can go from 21 -> 23. I sometimes see misunderstandings thinking 2 versions means .2 to .4 for example, but as far as I know it refers to the first number in the versioning.




  • 3.  RE: juniper SRX upgrade path from JUNOS 21.4.R3.15 to 23.2R1

    Posted 07-20-2023 19:04

    The upgrade jump requirements are outlined in the target release version section on Migration, upgrade and downgrade. 

    In your case the SRX section of 23.2 here.  Which shows the jump is within the expected upgrade range.

    https://www.juniper.net/documentation/us/en/software/junos/release-notes/23.2/junos-release-notes-23.2r1/topics/upgrade-downgrade/srx-upgrade-downgrade.html



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    Steve Puluka BSEET - Juniper Ambassador
    IP Architect - DQE Communications Pittsburgh, PA (Metro Ethernet & ISP - Retired)
    http://puluka.com/home
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  • 4.  RE: juniper SRX upgrade path from JUNOS 21.4.R3.15 to 23.2R1

    Posted 07-27-2023 10:22
    Edited by aaron.gould 07-27-2023 10:22

    These aren't SRX's, but I recently upgraded some MX204's and followed these steps... I recall getting JTAC recommendations on this.


    MX204 I have 18.4R1-S3.1, so... 
     
    18.4R1-S3.1 - currently running 
     
    19.1 - skip 
     
    19.2 - skip 
     
    19.3 - upgrade 
     
    19.4 - skip 
     
    20.1 - skip 
     
    20.2 - upgrade 
     
    20.3 - skip 
     
    20.4 - skip 
     
    21.1 - upgrade 
     
    21.2 - skip 
     
    21.3 - skip 
     
    21.4 - upgrade 
     
    22.1 - skip 
     
    22.2 - upgrade (target version) 



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    - Aaron
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