dot1q and giant frames

Discussion in 'Cisco' started by carl, Oct 28, 2004.

  1. carl

    carl Guest

    Hi

    Cisco12008 GSR with Gig interface line card and dot1q trunking enabled,
    looking at the interface stats there are lots of giants being clocked up.
    Question are the counters just increasing due to the extra 4 bytes in the
    frame and do NO discards occur in this situation?

    Regards
     
    carl, Oct 28, 2004
    #1
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  2. You are correct, if you are transmiting a frame that is already at
    1518 bytes, the extra four bytes will bring you to 1522 and register
    as a baby giant. I don't believe this will cause you any problems.
    The only exception that I can think of, and my memory is fuzy so
    someone else may be able to clarify: I believe under certain
    circumstances a Catalyst Switch will discard baby giants unless
    configured properly, but that probably doesn't apply to your
    situation.

    > Hi
    >
    > Cisco12008 GSR with Gig interface line card and dot1q trunking enabled,
    > looking at the interface stats there are lots of giants being clocked up.
    > Question are the counters just increasing due to the extra 4 bytes in the
    > frame and do NO discards occur in this situation?
    >
    > Regards
     
    David Wolfenbarger, Oct 29, 2004
    #2
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