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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
Retired_Member's avatar
Retired_Member
Mar 13, 2018

Hi mbkitmgr3

 

Welcome to the community! 

 

May I ask some quesiton for further more analysis this problem?

1. As the image of the switch M4100 is too old in your network, could you please upgrade to latest image and try again?  new iamge download link is image

2. If the problem still occur after upgrade image, Could you please provide the tech-support file of the switch for further more analysis?

How do I send tech-support files from my Managed Switch to NETGEAR community moderators?

http://kb.netgear.com/app/answers/detail/a_id/31439


Hope it helps! 

Regards, 

EricZ 
NETGEAR employee

 

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!

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