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Finding 100/Half switch ports

Last post 01-03-2008 5:41 PM by sbusby. 3 replies.
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  • 12-18-2007 11:49 AM

    Finding 100/Half switch ports

    I need a report that will show me any port that is running 100/Half duplex.  I would need this ofr Cisco IOS and CatOS.  I can't seem to figure out the SNMP variable to make this work.

    Anyone else have a report like this?

    TIA.

    BB
     

  • 12-18-2007 1:28 PM In reply to

    Re: Finding 100/Half switch ports

    The easy part is finding the SNMP variable -- it's here:

     

    EtherLike-MIB::dot3StatsDuplexStatus.1 = INTEGER: fullDuplex(3)

     

    And it would be great if one could create an interface group that tested for that, but the group criteria don't currently include it as a choice.

     

    That being said, there already is a canned issue that displays every 100/half port -- it's "Incorrect Duplex Setting".  It's been broken since it was created because the only thing it looks for is 100/half -- it doesn't look for multiple downstream MACs that occur with a hub.  But until it is improved, it does exactly what you want. :)

     

    - Marty

  • 01-03-2008 5:35 PM In reply to

    • sbusby
    • Top 25 Contributor
    • Joined on 09-22-2007
    • Omaha Nebraska

    Re: Finding 100/Half switch ports

    How about this for an ad-hoc listing?

    NetMRI> Results> Network> Interface Groups

    Group Name Select "Switchports"

    In the Speed Column put ">=100" and in the Duplex column "half"

    This should provide you with a listing of switchports that are running 100/half

    If Linux doesn't have the solution, you have the wrong problem.

    Steve
  • 01-03-2008 5:41 PM In reply to

    • sbusby
    • Top 25 Contributor
    • Joined on 09-22-2007
    • Omaha Nebraska

    Re: Finding 100/Half switch ports

    Sorry--realized this was in Operations Center AFTER  I posted.

     

    If Linux doesn't have the solution, you have the wrong problem.

    Steve
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