Re: tcptrace and huge files ? (a few GB)

From: Mark Allman (mallman@grc.nasa.gov)
Date: 10/28/02

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    Message-Id: <200210290401.XAA06331@lawyers.ir.bbn.com>
    From: Mark Allman <mallman@grc.nasa.gov>
    Subject: Re: tcptrace and huge files ? (a few GB) 
    Date: Mon, 28 Oct 2002 23:01:13 -0500
    
    

    > On a slightly related topic, does anyone have tips for taking
    > tcpdump traces on a fairly high-speed link (say, 1-Gbps link)
    > without dropping too many packets?

    I have no experience with such links. But, on some links I have had
    good luck with cranking up the BPF buffer size (via sysctl). The
    default is usually pretty anemic. (But, I am sure this only helps
    So Much.)

    allman

    --
    Mark Allman -- NASA GRC/BBN -- http://roland.grc.nasa.gov/~mallman/
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