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  1. #1

    how do I make shapers count FCS bytes

    Hi All,
    From testing that I've done with TC HTC shaping I noticed that the shaper doesn't count packet FCS, so effectively where I expect traffic to be X Mbps I get a bit more. How much more depends on the packet length.
    Is there a way to make the shaper count the packet's FCS (CRC)?

    Last edited by gabrielz; 01-19-2014 at 10:01 AM.

  2. #2
    Linux Guru
    Join Date
    Dec 2013
    Victoria, B.C. Canada
    FCS is part of the ethernet frame as opposed to the actual packet. I'm not that familiar with tc but if you're matching on the packet size then FCS wouldn't be included.

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