From owner-freebsd-current Thu Feb 24 14:18:53 2000 Delivered-To: freebsd-current@freebsd.org Received: from shadowmere.student.utwente.nl (wit401305.student.utwente.nl [130.89.236.145]) by hub.freebsd.org (Postfix) with ESMTP id EB59037B95B for ; Thu, 24 Feb 2000 14:18:46 -0800 (PST) (envelope-from daeron@wit401305.student.utwente.nl) Received: by shadowmere.student.utwente.nl (Postfix, from userid 1000) id 7407C1F92; Thu, 24 Feb 2000 23:18:42 +0100 (CET) Date: Thu, 24 Feb 2000 23:18:42 +0100 From: Pascal Hofstee To: Garrett Wollman Cc: Chris Wasser , freebsd-current@FreeBSD.ORG Subject: Re: dc0 wierdness with Compex Freedomline Message-ID: <20000224231842.B74208@shadowmere.student.utwente.nl> References: <20000224120438.A24299@shadowmere.student.utwente.nl> <20000224102131.A1796@area51.v-wave.com> <200002241907.OAA27437@khavrinen.lcs.mit.edu> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Mailer: Mutt 1.0.1i In-Reply-To: <200002241907.OAA27437@khavrinen.lcs.mit.edu>; from wollman@khavrinen.lcs.mit.edu on Thu, Feb 24, 2000 at 02:07:40PM -0500 Sender: owner-freebsd-current@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG On Thu, Feb 24, 2000 at 02:07:40PM -0500, Garrett Wollman wrote: > < said: > Assuming you mean ``100BASE-T (half duplex)'' here... This is not > quite right. In a CSMA/CD medium access protocol, like that used by > Ethernet, the actual capacity of the link is always(*) somewhat less than > 100%; the exact value depends on the precise parameters of the > transmissions at both ends.(**) Ok ... we all know what exactly should be theoretical maximum and all ... but that wasn't exactly my question ... I have having weird problems with the network performance permanently dropping to below 100 kB/s (while still in 100 Mbps/FDX). Is there anybody that could give a plausible explanation for this break-down ? -- Pascal Hofstee < daeron @ shadowmere . student . utwente . nl > Managers know it must be good because the programmers hate it so much. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message