Date: Tue, 25 Dec 2001 11:16:40 -0800 (PST) From: Tom <tom@uniserve.com> To: Gabriel Ambuehl <gabriel_ambuehl@buz.ch> Cc: stable@FreeBSD.ORG, freebsd-qa@FreeBSD.ORG Subject: Re: Re[2]: 4.5 PRERELEASE - Call for testing Message-ID: <Pine.BSF.4.10.10112251110170.81618-100000@athena.uniserve.ca> In-Reply-To: <6183502672.20011225200755@buz.ch>
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On Tue, 25 Dec 2001, Gabriel Ambuehl wrote: > -----BEGIN PGP SIGNED MESSAGE----- > > Hello Tom, > > 25 Dec 2001, 19:50:40, you wrote: > > >> Another possibility is you do not have a Samba problem, but a > >> network problem with auto-negotiate. Some older 10/100 cards and > >> switch combinations step all over each other. You should lock down > >> one end to a specific speed > > That is bad advice. Auto-negotiation is not auto-detect. If you > > disable auto-negotiate at one end and specify manual settings, you > > must disable it on the other end too, and specify the SAME manual > > settings. Either use auto-negotiate everywhere, or use manual > > everywhere. I would recommend using auto everywhere. > > That doesn't reflect my experiences with Realtek 8139 Chipsets. The > chipset is pretty much broken (but cheap, so you see it VERY often) > and it doesn't really do the auto-detection of network speeds (often, > it will work with some 200byte/s) but if you lock it to 100mbit, it > works flawlessly with all other chipsets I got (among others, Intel > (both cards and onboard ICH2), Via Rhine and some very old Dec ones) > on a cheap noname 100mbit switch. Beware, Auto-negotiation isn't auto-detection. Speeds can be autodetected, but the duplex can't be auto-detected and must be auto-negotiated. The single biggest problem with switched networks is the incorrect assumption that auto-detect and augo-negotiate are the same thing. They are not. As far as the Realtek 8139 goes, the time spent on bad network cards isn't worth it, especially on a corporate network. Tom To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message
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