Subject: Re: very slow TCP connection on localhost
To: Steven M. Bellovin <firstname.lastname@example.org>
From: Manuel Bouyer <email@example.com>
Date: 09/06/2006 16:52:58
On Wed, Sep 06, 2006 at 10:48:08AM -0400, Steven M. Bellovin wrote:
> The retransmissions are, I suspect, the key. If TCP has to retransmit,
> it's because a packet or its acknowledgment got lost;
Or because the remote end took too much time sending the ack.
> TCP in turn
> interprets that as due to congestion and backs off. The question, then,
> is why packets are getting lost. Does 'netstat -i -d' show any drops on
No, the count it 0. Real interfaces don't have drops either.
Manuel Bouyer, LIP6, Universite Paris VI. Manuel.Bouyer@lip6.fr
NetBSD: 26 ans d'experience feront toujours la difference