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mbkitmgr3's avatar
mbkitmgr3
Aspirant
Mar 11, 2018

Link UP/Down events on select inactive ports M4100-24G-POE+

We recently included this device in our SNMP moitoring system Every few seconds ports report Link UP/Iink DOWN on ports not yet connected to any devices. The other oddity is that some report this mo...
Troubleshooting
mbkitmgr3's avatar
mbkitmgr3
Aspirant
Mar 14, 2018

Hi EricZ,

 

Thanks for your assistance with this task.

 

I was able to arrange an outage last night to update the firmware V10.2.0.26.  From a check this morning the behaviour hasn't changed.

 

I also receive advice from the device when I try to obtain the Tech Support log that it "is either empty or not found".  Is there something in the config of the switch that I have missed for the device to report this.

 

I have downloaded any log/scripts/configs etc that would succeed and will submit them via the method requested

 

Retired_Member's avatar
Retired_Member
Mar 15, 2018

Hi mbkitmgr3,

 

You can run CLI command as 'show tech-support' first on console port or telnet port, and try again.

 

Hope it helps!

  • mbkitmgr3's avatar
    mbkitmgr3
    Aspirant
    Mar 15, 2018

    HI EricZ

     

    Thanks again.

     

    I have emailed the techsupport file to the email address supplied

     

    • Retired_Member's avatar
      Retired_Member
      Mar 15, 2018

      Hi mbkitmgr3

       

      Thanks for your immediately response, I got the tech-support file. 

       

      And there is port flapping for port 0/9 as below:

      1 Mar 15 02:17:58 2018 Link Up: 0/9
      2 Mar 15 02:17:54 2018 Link Down: 0/9
      3 Mar 15 02:16:56 2018 Link Up: 0/9
      4 Mar 15 02:16:52 2018 Link Down: 0/9
      5 Mar 15 02:16:19 2018 Link Up: 0/9
      6 Mar 15 02:16:16 2018 Link Down: 0/9
      7 Mar 15 02:16:09 2018 Link Up: 0/9
      8 Mar 15 02:16:07 2018 Link Down: 0/9

       

      As the port not connect any device, maybe it's hardware issue.

      Two suggestion for you:

      1. Do factory default for the switch, and see if it still happen or not?

      2. It would be best that you open an online case with Netgear Support for further assistance. If it's hardware issue, support will replace new one to you.

       

      Hope it helps!

      • mbkitmgr3's avatar
        mbkitmgr3
        Aspirant
        Mar 30, 2018

        HI Eric,

         

        Lodged a support request, had a remote support session with a Tech Support rep from NetGear.  He didnt agree that there was an issue.  We have elected to retire the device as a spare.

         

        Thank you for your help

         

         

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