Date: Tue, 07 Sep 2004 21:15:15 -0400 From: "Alexandre \"Sunny\" Kovalenko" <Alex.Kovalenko@verizon.net> To: freebsd-current@freebsd.org Subject: Re: BETA3 showstoppers (read: critical bugs) Message-ID: <1094606114.673.9.camel@RabbitsDen> In-Reply-To: <20040907161851.GA67411@parodius.com> References: <m3brgjqqhj.fsf@merlin.emma.line.org> <20040907112121.GA94401@cell.sick.ru> <20040907151957.GE95626@cell.sick.ru> <1094571416.67273.8.camel@rushlight.kf8nh.com> <20040907161851.GA67411@parodius.com>
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On Tue, 2004-09-07 at 12:18, Jeremy Chadwick wrote: > I can confirm Brandon's comments (re: 802.3 speed/duplex negotiation not > working properly with Cisco equipment). At Best, we had to force duplex > and speed on both our Catalysts and our BSD boxes, otherwise, mysterious > problems would occur (slow transfer rates in one direction, input or > output errors, etc.). I'm sure Matt Dillon can attest to this as well. > > I highly doubt it's specific to the xl driver, or even 3Com cards, since > 4-5 months ago I had such issues connecting a Catalyst to an HP ProCurve > switch -- again, had to force the speed and duplex on both ends. I think > this is a pretty "historic" problem with Cisco equipment. Look around > the Web and you'll see what I mean. > > The procedure, if I remember right: > > Cat> set port x/y speed 100 > Cat> set port x/y duplex full > Cat> set port disable x/y > > BSD> ifconfig xl0 ... media 100baseTX mediaopt full-duplex > BSD> [see note] > > Cat> set port enable x/y > > NOTE: Occasionally I'd also see this procedure fail until the BSD box was > actually *rebooted*. This problem always eluded me, but may have > changed severely since the days of 2.2.8 ( :) ). FWIW: I have autonegotiation problems between Cisco switches and way too many pieces of equipment to list here (including, but not limited to: several models of IBM RS/6000, couple of Sun boxes, fxp & bge under Windows/Linux/FreeBSD, etc.). Forcing speed to 100-FDX solves the problem for good. Usual symptoms -- under heavy load transfer speeds slows to crawl and connection is being dropped eventually. Only common denominator is Cisco switch. HTH. --- Alexandre "Sunny" Kovalenko.
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