Date: Wed, 20 Dec 2000 19:10:32 +0100 From: Jesper Skriver <jesper@skriver.dk> To: Matthew Thyer <thyerm@camtech.net.au> Cc: Michael Class <michael_class@hp.com>, current@freebsd.org Subject: Re: Network performance-problem Message-ID: <20001220191031.C64470@skriver.dk> In-Reply-To: <3A3EEADE.3924E4E6@camtech.net.au>; from thyerm@camtech.net.au on Tue, Dec 19, 2000 at 03:28:06PM %2B1030 References: <3A3DDDC7.6F2540B7@hp.com> <3A3EEADE.3924E4E6@camtech.net.au>
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On Tue, Dec 19, 2000 at 03:28:06PM +1030, Matthew Thyer wrote: > Michael Class wrote: > > > > Hello, > > > > i am seeing a problem with 5.0-current (from 14.12.00) and a 3COM > > 3CCFE575CT Lancard (pc-cardbus) using the xl-driver. > > [snip] > > > Why behaves my FreeBSD-machines worse then the other boxes? Any Ideas? > > Make sure you are running with the TCP/IP NewReno optimisation turned > off. There are bugs in the TCP/IP NewReno code that result in bad > packets and hence lots of retransmission with generally reduced network > performance. > > I think its meant to be the default now in -CURRENT (to have NewReno off) > but I'm not sure if PHK has disabled it yet. > > $ cat /usr/local/etc/rc.d/nonewreno.sh > #!/bin/sh > sysctl -w net.inet.tcp.newreno=0 > echo -n " no_newreno" A echo "net.inet.tcp.newreno=0" >> /etc/sysctl.conf would be easier ;-) /Jesper -- Jesper Skriver, jesper(at)skriver(dot)dk - CCIE #5456 Work: Network manager @ AS3292 (Tele Danmark DataNetworks) Private: Geek @ AS2109 (A much smaller network ;-) One Unix to rule them all, One Resolver to find them, One IP to bring them all and in the zone to bind them. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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