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<p> Only 5% of the TCP connections actually use SACK, (From Anja Feldmann,
trace from 12/99)
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<p>according to <a href="http://www.icir.org/floyd/sack-questions.html">http://www.icir.org/floyd/sack-questions.html</a>
of October 2000.</p>
<p> </p>
<p>Is there an up-to-date answer to this?</p>
<A href="http://www.icir.org/floyd/notes/Q_SACK.txt">What fraction</A> of the bytes/packets/TCP-flows in
the Internet are SACK-capable?
<p> </p>
<p>Thanks.</p>
<p> </p>
<p>Ron Lee</p>
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