From owner-freebsd-questions Tue Oct 12 16:27: 0 1999 Delivered-To: freebsd-questions@freebsd.org Received: from implode.root.com (root.com [209.102.106.178]) by hub.freebsd.org (Postfix) with ESMTP id 4F23415240 for ; Tue, 12 Oct 1999 16:26:54 -0700 (PDT) (envelope-from dg@implode.root.com) Received: from implode.root.com (localhost [127.0.0.1]) by implode.root.com (8.8.8/8.8.5) with ESMTP id QAA18188; Tue, 12 Oct 1999 16:25:24 -0700 (PDT) Message-Id: <199910122325.QAA18188@implode.root.com> To: Mitch Collinsworth Cc: Christopher Michaels , "'Mike Squires'" , questions@FreeBSD.ORG Subject: Re: Setting Intel Pro100B to half duplex In-reply-to: Your message of "Tue, 12 Oct 1999 14:47:07 EDT." <199910121847.AA196164027@broccoli.graphics.cornell.edu> From: David Greenman Reply-To: dg@root.com Date: Tue, 12 Oct 1999 16:25:24 -0700 Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG >>> >Specify the 100BaseTX media w/o the "full-duplex" media option and it >>> will >>> >use half-duplex. Auto is notorious for not properly detecting things. >>> >-Chris >>> >> Read: set the media type (whereby disabling auto-neg), it will >>default to half-duplex. > >Ok so you're saying that locking the media type to 100baseTX will disable >autonegotiation for duplex. I was considering speed and duplex to be >independent. David, is this really true? Yes, setting either the speed or the duplex to a non-auto setting will disable NWAY autonegotiation. >>> > The fxp device does default to auto-sense, but if you hard configure >the >>> >other end then [NWAY] autonegotiation is disabled, and thus whenever you >do >>> >that you have to set both ends if you want to be sure it is correct. The >>> >default without autonegotiation is half-duplex. >>> >> Read: disable auto-neg (by setting the media type), it will default >>to half-duplex. > >Well that's not how I read it. (But it might be what he meant.) I took >it to mean: "Hard-configuring the other end will stop the other end >from sending negotiation information. If that happens, the fxp device >will receive no information from the other end and will not be able to >make an informed decision. In this case fxp defaults to half-duplex." Yes, that is also true. -DG David Greenman Co-founder/Principal Architect, The FreeBSD Project - http://www.freebsd.org Creator of high-performance Internet servers - http://www.terasolutions.com Pave the road of life with opportunities. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message