Date: Tue, 12 Oct 1999 16:25:24 -0700 From: David Greenman <dg@root.com> To: Mitch Collinsworth <mkc@Graphics.Cornell.EDU> Cc: Christopher Michaels <ChrisMic@clientlogic.com>, "'Mike Squires'" <mikes@sir-alan.chem.indiana.edu>, questions@FreeBSD.ORG Subject: Re: Setting Intel Pro100B to half duplex Message-ID: <199910122325.QAA18188@implode.root.com> In-Reply-To: Your message of "Tue, 12 Oct 1999 14:47:07 EDT." <199910121847.AA196164027@broccoli.graphics.cornell.edu>
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>>> >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
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