From owner-freebsd-questions@FreeBSD.ORG Wed May 23 23:25:47 2007 Return-Path: X-Original-To: freebsd-questions@freebsd.org Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id C388F16A421 for ; Wed, 23 May 2007 23:25:47 +0000 (UTC) (envelope-from fbsd06@mlists.homeunix.com) Received: from mxout-03.mxes.net (mxout-03.mxes.net [216.86.168.178]) by mx1.freebsd.org (Postfix) with ESMTP id 9F86713C45D for ; Wed, 23 May 2007 23:25:47 +0000 (UTC) (envelope-from fbsd06@mlists.homeunix.com) Received: from gumby.homeunix.com. (unknown [87.81.140.128]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by smtp.mxes.net (Postfix) with ESMTP id 579FA5193B for ; Wed, 23 May 2007 19:25:45 -0400 (EDT) Date: Thu, 24 May 2007 00:25:43 +0100 From: RW To: freebsd-questions@freebsd.org Message-ID: <20070524002543.7f6d6b34@gumby.homeunix.com.> In-Reply-To: <20070520011025.GX11625@tigger.digitaltorque.ca> References: <20070517152529.GA15636@tigger.digitaltorque.ca> <20070520011025.GX11625@tigger.digitaltorque.ca> X-Mailer: Claws Mail 2.9.1 (GTK+ 2.10.12; i386-portbld-freebsd6.2) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Subject: Re: looking for ethernet errors, collisions X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 23 May 2007 23:25:47 -0000 On Sat, 19 May 2007 21:10:25 -0400 "Michael P. Soulier" wrote: > On 17/05/07 Ted Mittelstaedt said: > > > Note that error counters are often bogus because so > > many cards today filter errors out in hardware, long before > > the OS driver gets them. > > Well, there are plenty there on my sis0 interface (internal). > > [msoulier@kanga ~]$ netstat -i > Name Mtu Network Address Ipkts Ierrs Opkts > Oerrs Coll > sis0 1500 00:0a:e6:4a:56:c2 37989565 3980 36808783 > 5749 6492857 > sis0 1500 192.168.1 kanga 12380344 - > 9255757 - > What are collisions in this context? Traditional ethernet collisions aren't possible on modern hardware, since there's never more than one output writing to each twisted-pair. netstat -i on my desktop PC shows collisions on the ppp tun0 interface. I haven't a clue what that means.