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  • 1.  EX4500 Not Booting up

    Posted 03-17-2023 10:48

    Hello

    I'm facing a problem with our EX4500 switch . suddenly , all switch ports are on and it looks stuck at some part .

    in console , the switch is booting till Dram initialization and then reboot again .

    i have attached a couple of pics showing the issue .

    hope i can find a solution here.

     



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    Best Regards
    MAHMOUD AL.GENDY
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  • 2.  RE: EX4500 Not Booting up

    Posted 03-17-2023 10:49
    Edited by spuluka 03-17-2023 10:49

    You can try these methods to recover from this boot loop.

    https://supportportal.juniper.net/s/article/EX-Recovering-EX-switch-when-it-cannot-get-into-loader-prompt



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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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  • 3.  RE: EX4500 Not Booting up

    Posted 03-18-2023 08:42

    Thanks for your reply. 

    Unfortunately, the ctrl +c combination doesn't affect this behavior. It keeps rebooting. 

    It stops at the dram initialization, which is not stated in any of the article cases. I hope this is not a hardware failure as we urgently need this unit. 

    Is there anyway to fix it? 



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    MAHMOUD AL.GENDY
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  • 4.  RE: EX4500 Not Booting up

    Posted 03-18-2023 08:44

    From the description it seems likely this is hardware failure.

    You should open a ticket with support, I think these are covered for hardware issues like that and would likely be replaced.



    ------------------------------
    Steve Puluka BSEET - Juniper Ambassador
    IP Architect - DQE Communications Pittsburgh, PA (Metro Ethernet & ISP - Retired)
    http://puluka.com/home
    ------------------------------