Junos OS

 View Only

  • 1.  JunOS for EX-4300-48T

    Posted 02-18-2026 07:21
    Hi,
    From the EX4300 JunOS download page (screen capture attached), version 22.x, 23.x and 24.x are not available, does it mean the only available upgrade for EX4300 from 21.4 to a higher version is 25.x?
    Thanks.
    EX4300_JunOS_Options


    ------------------------------
    Hoi Free
    ------------------------------


  • 2.  RE: JunOS for EX-4300-48T
    Best Answer

    Posted 02-18-2026 14:44

    Hoi,

    For the EX4300 (non MP models) the last software version (LSV) is 21.4. There are no versions newer than that and will get updated Service Releases (vulnerability and bug fixes) until the switches are End of Software Engineering. 

    https://support.juniper.net/support/eol/software/junos/#12

    Thanks,

    Mark



    ------------------------------
    Hope this helps.

    Mark
    ------------------------------