From owner-freebsd-net@FreeBSD.ORG Fri May 30 17:14:56 2003 Return-Path: Delivered-To: freebsd-net@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 963CA37B401 for ; Fri, 30 May 2003 17:14:56 -0700 (PDT) Received: from smtp-relay.omnis.com (smtp-relay.omnis.com [216.239.128.27]) by mx1.FreeBSD.org (Postfix) with ESMTP id C38C243F85 for ; Fri, 30 May 2003 17:14:55 -0700 (PDT) (envelope-from wes@softweyr.com) Received: from salty.rapid.stbernard.com (corp-2.ipinc.com [199.245.188.2]) by smtp-relay.omnis.com (Postfix) with ESMTP id AE08C1B584; Fri, 30 May 2003 17:14:54 -0700 (PDT) From: Wes Peters Organization: Softweyr.com To: Erwane Breton , freebsd-net@freebsd.org Date: Fri, 30 May 2003 17:14:53 -0700 User-Agent: KMail/1.5 References: <20030529155143.2c39326e.breton@erwane.net> <004b01c325f6$2c5cfd20$812a40c1@PETEX31> <20030530182656.08046610.breton@erwane.net> In-Reply-To: <20030530182656.08046610.breton@erwane.net> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200305301714.53997.wes@softweyr.com> Subject: Re: Collision on NIC X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 31 May 2003 00:14:56 -0000 On Friday 30 May 2003 09:26, Erwane Breton wrote: > > > Well, I don't see the problem. > > > > > > My math says that that's .03% collision rate, which is so deep in > > > the noise as to be practically zero. What do you _think_ it > > > should be? > > > > Even Mr. Inventor of the ethernet himself regrets calling them > > collisions because that term has a bad ring people unfamiliar with > > the technological detail. > > > > Pete > > So there are no answers or solutions ? If it were a problem there might be a solution, but collisions are not a problem, they're normal on an ethernet. When you read "collision" you think "error." You must retrain your mind, collisions are normal operating procedure on ethernet. Really. If the collisions were above 10%, it would be cause for concern; at 0.03% I can only conclude that you have a switched ethernet and have occasional broadcast traffic. 0.03% is way too low for any half-duplex (i.e. built with hubs) network. Repeat after me: "Collisions are normal on ethernet. 0.03% is nothing to be upset about." -- "Where am I, and what am I doing in this handbasket?" Wes Peters wes@softweyr.com