From owner-freebsd-current Tue Dec 19 3:33: 9 2000 From owner-freebsd-current@FreeBSD.ORG Tue Dec 19 03:33:06 2000 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from bbnrel4.net.external.hp.com (bbnrel4.net.external.hp.com [155.208.254.68]) by hub.freebsd.org (Postfix) with ESMTP id 7004F37B400 for ; Tue, 19 Dec 2000 03:33:06 -0800 (PST) Received: from tmbbmcc3.bbn.hp.com (tmbbmcc3.bbn.hp.com [15.136.126.78]) by bbnrel4.net.external.hp.com (Postfix) with ESMTP id 562161CE7C; Tue, 19 Dec 2000 12:33:00 +0100 (MET) Received: from hp.com (michaelc@tmbbwmc.bbn.hp.com [15.136.124.25]) by tmbbmcc3.bbn.hp.com with ESMTP (8.8.6 (PHNE_17190)/8.8.6 SMKit7.02) id MAA20423; Tue, 19 Dec 2000 12:32:58 +0100 (MET) Sender: michaelc@tmbbmcc3.bbn.hp.com Message-ID: <3A3F476A.9FA98FCC@hp.com> Date: Tue, 19 Dec 2000 12:32:58 +0100 From: Michael Class X-Mailer: Mozilla 4.76 [en] (X11; U; HP-UX B.10.20 9000/777) X-Accept-Language: en MIME-Version: 1.0 To: Matthew Thyer Cc: current@freebsd.org Subject: Re: Network performance-problem References: <3A3DDDC7.6F2540B7@hp.com> <3A3EEA08.E63EC165@camtech.net.au> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-freebsd-current@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG Matthew Thyer wrote: > > Michael Class wrote: > > i am seeing a problem with 5.0-current (from 14.12.00) and a 3COM > > 3CCFE575CT Lancard (pc-cardbus) using the xl-driver. > > > 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. It seems that NewReno is switched on by default in current. Unfortunately switching off NewReno does not change the problem. In times of very high network-traffic I am still unable to use the network. The system does not even respond to a ping where as all other systems I have (HPUX 10.20, 11.0 and NT4) behave as expected: slow response-times, but still working and ping-able. At home I am using this Laptop in a 100MB-Network and am able to almost saturate the link without any problems. Could it be that this is just happening for multicast-packets (that's what the high network-traffic is)? Anything else I could check? TIA Michael -- ___________________________________________________________________________ Michael Class E-Mail: michael_class@hp.com E-Business Solution Division Phone: +49 7031 14-3707 Fax: +49 7031 14-4505 ___________________________________________________________________________ Hewlett-Packard GmbH, PO Box 1430, Mailstop ESD2, 71004 Boeblingen Managing Directors: Rainer Geissel (Chairman),Rainer Erlat, Heribert Schmitz, Hans-Jochen Lueckefett, Fritz Schuller Chairman of the Supervisory Board: Joerg Menno Harms Commercial register: Amtsgericht Boeblingen HRB 4081 ___________________________________________________________________________ To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message