Date: Fri, 01 Nov 2002 14:28:11 -0500 From: Mark Allman <mallman@grc.nasa.gov> To: rick norman <rick.norman@lmco.com> Cc: Don Bowman <don@sandvine.com>, "'Fran.Lawas-Grodek@grc.nasa.gov'" <Fran.Lawas-Grodek@grc.nasa.gov>, Luigi Rizzo <rizzo@icir.org>, Cindy.Tran@grc.nasa.gov, freebsd-net@FreeBSD.ORG Subject: Re: Problem in High Speed and Long Delay with FreeBSD Message-ID: <200211011928.OAA63524@guns.lerc.nasa.gov> In-Reply-To: <3DC2D147.8357C198@lmco.com>
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> Are you sure you're not hitting the top of the pipe and bouncing > around in congestion avoidance ? Unless your window size limits > your bw at exactly the correct amount, you'll never get the steady > state We're not bouncing around. We see no loss, which would indicate that either we should continue slow start (exponential cwnd growth) or stop growing cwnd when we hit the advertised window. But, we do neither of these. At some point the cwnd just stops growing -- even though we have plenty of advertised window left and no loss. Hm. allman -- Mark Allman -- BBN/NASA GRC -- http://roland.grc.nasa.gov/~mallman/ To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-net" in the body of the message
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