From owner-freebsd-questions Mon Jan 10 7:25:22 2000 Delivered-To: freebsd-questions@freebsd.org Received: from dan.emsphone.com (dan.emsphone.com [199.67.51.101]) by hub.freebsd.org (Postfix) with ESMTP id 39ACE151CD for ; Mon, 10 Jan 2000 07:25:15 -0800 (PST) (envelope-from dan@dan.emsphone.com) Received: (from dan@localhost) by dan.emsphone.com (8.9.3/8.9.3) id JAA60306; Mon, 10 Jan 2000 09:25:11 -0600 (CST) (envelope-from dan) Date: Mon, 10 Jan 2000 09:25:11 -0600 From: Dan Nelson To: Wessel van Norel Cc: freebsd-questions@FreeBSD.ORG Subject: Re: collisions more then half of total traffic? Message-ID: <20000110092511.A55853@dan.emsphone.com> References: Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Mailer: Mutt 1.0i In-Reply-To: ; from "Wessel van Norel" on Mon Jan 10 16:03:01 GMT 2000 X-OS: FreeBSD 4.0-CURRENT Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG In the last episode (Jan 10), Wessel van Norel said: > I'm having problems with my internal network. I've an 3com 3c905B-TX card > on the external network (xl0) and a NE2000 PCI Ethernet (RealTek 8029) on > the internal network (ed2) > netstat -i give's me the following information: > Name Mtu Network Address Ipkts Ierrs Opkts Oerrs Coll > ed2 1500 00.c0 2896726 0 4738448 4 1639672 > ed2 1500 10 intern 2896726 0 4738448 4 1639672 > xl0 1500 00.10 24522846 76 3253900 4 0 > xl0 1500 130.89 wit397 24522846 76 3253900 4 0 > lo0 16384 24250 0 24250 0 0 > lo0 16384 127 localh 24250 0 24250 0 0 Actually, your collisions are 1639672/4738448 = 35% of your total traffic. Also note that collisions do not represent dropped packets; you had 4 of those at most. A collision simply delays the packet by a few microseconds (this is all done in the card's hardware so its fast). -- Dan Nelson dnelson@emsphone.com To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message