From owner-freebsd-current@FreeBSD.ORG Thu Aug 17 11:03:36 2006 Return-Path: X-Original-To: freebsd-current@freebsd.org Delivered-To: freebsd-current@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id CE36616A4E2 for ; Thu, 17 Aug 2006 11:03:36 +0000 (UTC) (envelope-from lerik@nolink.net) Received: from electra.nolink.net (electra.nolink.net [195.139.204.207]) by mx1.FreeBSD.org (Postfix) with ESMTP id 9780743D6E for ; Thu, 17 Aug 2006 11:03:32 +0000 (GMT) (envelope-from lerik@nolink.net) Received: (qmail 50435 invoked by uid 89); 17 Aug 2006 11:03:30 -0000 Received: from unknown (HELO localhost) (127.0.0.1) by localhost with (DHE-RSA-AES256-SHA encrypted) SMTP; 17 Aug 2006 11:03:30 -0000 Date: Thu, 17 Aug 2006 13:03:30 +0200 (CEST) From: Lars Erik Gullerud To: "Brian A. Seklecki" In-Reply-To: <20060816191152.J69548@arbitor.digitalfreaks.org> Message-ID: <20060817102123.O23408@electra.nolink.net> References: <43767.150.101.159.26.1140420612.squirrel@mailbox.TU-Berlin.DE> <20060720104238.L8726@arbitor.digitalfreaks.org> <20060807100622.GY96644@cell.sick.ru> <20060810160126.E55918@arbitor.digitalfreaks.org> <20060816191152.J69548@arbitor.digitalfreaks.org> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed Cc: freebsd-current@freebsd.org Subject: Re: Dell PowerEdge 850 bge(4) RELENG_6 (WAS: Re: bge(4) problem) X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 17 Aug 2006 11:03:36 -0000 On Wed, 16 Aug 2006, Brian A. Seklecki wrote: > If I leave it in auto-media, it comes up at 100/half duplex, which leads to > unusable performance. 100/half duplex is technically impossible anyway. I noticed this claim earlier in the thread, just to clear up the apparent confusion, 100/half is not just technically possible, but (was) quite widely used. Before switches became as cheap and widespread as they are now, 100Mbit Hubs were not uncommon. Even 1000/Half is technically valid (and gigabit hubs do exist, allthough they never became very popular). The first standard to abandon support for half-duplex CSMA/CD operation is 10-gig Ethernet. /leg