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EX2300 cant see both optical ports and the 48 built in copper ports after power surge

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  • 1.  EX2300 cant see both optical ports and the 48 built in copper ports after power surge

    Posted 08-13-2022 03:32
      |   view attached
    Hello Team,

    We have one of our 2300 switches crashed after power surge. 
    The switch boots up normally(we not stuck in any prompt) but it doesn't see all the interfaces both copper and Optical. the virtual interfaces like Me0 , irb and the rest are seen.
    When we say "sh inter terse" it only displays virtual interfaces and not physical. sh chassis hardware also doesnt  show 24 port copper and 4 optical ports. it shows power supply and fan module.

    Inspecting the switch physically, we see the first 8 copper ports are all lighting up. link and activity lights are on as per attached pic even though there nothing connected to those ports.
    sh ver version shows:
    ex2300-24t
    Junos: 18.2R3-S4.1

    How can we make the switch see the physical ports ? 
    we see this message popping up at the prompt randomly. 


  • 2.  RE: EX2300 cant see both optical ports and the 48 built in copper ports after power surge

    Posted 08-13-2022 08:02
    Seems likely the hardware is physically damaged from the description.

    You could make a last attempt to use the reset button to completely set the device.

    https://www.juniper.net/documentation/us/en/hardware/ex2300/topics/topic-map/ex2300-configuring-junos-os.html#d104e287

    Or boot to a USB and do a reformat install of Junos to the internal SSD to be sure it is not a software issue.

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