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issue: VLAN Trunk Port Down

Last post 01-09-2012 2:57 PM by georgew. 2 replies.
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  • 01-27-2011 11:33 AM

    issue: VLAN Trunk Port Down

    This reports any trunk port that is on a "switch-router" that is: <<int>> is down, line protocol is down (inactive).

     

    Assuming the only way to fix/clear/resolve this is to administratively down the interface(s)?

  • 01-27-2011 3:09 PM In reply to

    • tslattery
    • Top 10 Contributor
    • Joined on 09-12-2007
    • Chesapeake Netcraftsmen

    Re: issue: VLAN Trunk Port Down

    That is correct. If you have a bunch of trunks in up/down state, how do you know when a redundant trunk has failed? I find it difficult to track failed trunk ports in a redundant network without some mechanism.

    There are at least two mechanisms:

    1. Administratively shutdown any unused trunk port. If it is configured as a trunk, shouldn't it be up/up? Perhaps it is easy to just leave the interface in up/down state, but then it is difficult to track which ports should be up/up.

    2. You could use a tag on the interface description and only alert on trunk ports that have a tag that means that it is an important link.

    If you don't care about this issue, then suppress it.

  • 01-09-2012 2:57 PM In reply to

    Re: issue: VLAN Trunk Port Down

    I have a couple ports that were trunk ports at one time, biut are no longer connected, that are generating this alarm.

    So I shut them down...  Still in alarm.

    So I configured them to not be trunk ports...  Still in alarm.

     

    Very annoying!

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