From owner-freebsd-questions Sun Nov 10 10:53:19 1996 Return-Path: owner-questions Received: (from root@localhost) by freefall.freebsd.org (8.7.5/8.7.3) id KAA24616 for questions-outgoing; Sun, 10 Nov 1996 10:53:19 -0800 (PST) Received: from nexgen.n4hhe.ampr.org (max12-115.HiWAAY.net [206.104.16.115]) by freefall.freebsd.org (8.7.5/8.7.3) with ESMTP id KAA24600 for ; Sun, 10 Nov 1996 10:53:11 -0800 (PST) Received: (from dkelly@localhost) by nexgen.n4hhe.ampr.org (8.7.5/8.7.3) id MAA28588 for questions@freebsd.org; Sun, 10 Nov 1996 12:53:05 -0600 (CST) Message-ID: X-Mailer: XFMail 0.5-alpha [p0] on FreeBSD Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 8bit MIME-Version: 1.0 Date: Sun, 10 Nov 1996 12:33:42 -0600 (CST) Organization: Amateur Radio N4HHE, Madison, AL. From: David Kelly To: questions@freebsd.org Subject: Ethernet Collisions Sender: owner-questions@freebsd.org X-Loop: FreeBSD.org Precedence: bulk I noticed something recently that's bothering me. Not sure if its a FreeBSD problem, or more likely its a problem with the way the network is wired to my office: Name Mtu Network Address Ipkts Ierrs Opkts Oerrs Coll ed0 1500 00.00.b4.23.d1.21 22911 0 8188 0 4080 ed0 1500 140.165.210/2 PeeCee 22911 0 8188 0 4080 lp0* 1500 0 0 0 0 0 tun0* 1500 0 0 0 0 0 sl0* 552 0 0 0 0 0 lo0 16384 2 0 2 0 0 lo0 16384 your-net localhost 2 0 2 0 0 The above output of "netstat -i" is from: PeeCee: {1003} uname -a FreeBSD PeeCee.tbe.com 3.0-CURRENT FreeBSD 3.0-CURRENT #0: Wed Nov 6 18:22:58 CST 1996 dkelly@PeeCee.tbe.com:/usr/src/sys/ compile/PEECEE i386 and captured shortly after a reboot and ftp download of a 30M file. The concern is how most every packet transmitted first collided with another before getting out. This is repeatable, with either NE2000 or DEC-21040 ethernet cards. Doesn't matter if ftp or ncftp is used. Doesn't matter if the machine was freshly rebooted or has been running for several days. The remote system is an old SGI, ping reports TTL of 253 so there are one or two gateways between us. The network is UTP with a Farallon EtherWave in my office splitting it between Mac and PeeCee. The collision light on the Etherwave frist brought this to my attention. The de0 card still results in 800k to 900k transfer rates. Should I worry about this? -- David Kelly N4HHE, dkelly@tomcat1.tbe.com (wk), dkelly@hiwaay.net (hm) ===================================================================== The human mind ordinarily operates at only ten percent of its capacity -- the rest is overhead for the operating system.