Date: Tue, 16 Jul 2002 09:40:25 -0700 (PDT) From: Paul Herman <pherman@frenchfries.net> To: Hellmuth Michaelis <hm@hcs.de> Cc: FreeBSD-Stable List <freebsd-stable@FreeBSD.ORG> Subject: Re: "Hanging" TCP connections over ISDN Message-ID: <20020716092551.I99681-100000@mammoth.eat.frenchfries.net> In-Reply-To: <20020716133233.13299566@hcswork.hcs.de>
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On Tue, 16 Jul 2002, Hellmuth Michaelis wrote: > since upgrading two ISDN-connected systems from 4.5 RC1 to 4.6 TCP > connections between this two systems "hang" from time to time. > > [...] > > I'm a bit stuck here. It still might be a bug in the ISDN subsystem, > but nothing important has changed between 4.5 and 4.6. Unfortunately, I don't have much of an idea where the problem might be, but I can say "Me Too." The two machines connected over the internet are 4.6-STABLE and 4.5-RELEASE with a 56k link and 1.5 Mbit cable modem respectively. I've got newreno off on both, turning off delayed ACKs doesn't seem to help either. Also, the 56k modem is attached to a G4 iMac running Darwin 5.4 doing ipfw/natd which itself doesn't seem to stall nearly as much, so the link itself is probably OK. I guess I'll start looking at tcpdumps. -Paul. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message
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