From owner-freebsd-stable@FreeBSD.ORG Mon Nov 6 21:38:07 2006 Return-Path: X-Original-To: freebsd-stable@freebsd.org Delivered-To: freebsd-stable@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id C452016A407 for ; Mon, 6 Nov 2006 21:38:07 +0000 (UTC) (envelope-from m.seaman@infracaninophile.co.uk) Received: from smtp.infracaninophile.co.uk (ns0.infracaninophile.co.uk [81.187.76.162]) by mx1.FreeBSD.org (Postfix) with ESMTP id D634D43D5D for ; Mon, 6 Nov 2006 21:38:00 +0000 (GMT) (envelope-from m.seaman@infracaninophile.co.uk) Received: from [IPv6:::1] (localhost [IPv6:::1]) by smtp.infracaninophile.co.uk (8.13.8/8.13.8) with ESMTP id kA6LbX8I011158; Mon, 6 Nov 2006 21:37:33 GMT (envelope-from m.seaman@infracaninophile.co.uk) Authentication-Results: smtp.infracaninophile.co.uk from=m.seaman@infracaninophile.co.uk; sender-id=softfail; spf=softfail X-SenderID: Sendmail Sender-ID Filter v0.2.14 smtp.infracaninophile.co.uk kA6LbX8I011158 Message-ID: <454FAB16.1040608@infracaninophile.co.uk> Date: Mon, 06 Nov 2006 21:37:26 +0000 From: Matthew Seaman Organization: Infracaninophile User-Agent: Thunderbird 1.5.0.7 (X11/20061015) MIME-Version: 1.0 To: sthaug@nethelp.no References: <454BC211.3090104@lozenetz.org> <454F010D.4090807@lozenetz.org> <20061106114537.GA99879@icarus.home.lan> <20061106.222443.74711080.sthaug@nethelp.no> In-Reply-To: <20061106.222443.74711080.sthaug@nethelp.no> X-Enigmail-Version: 0.94.0.0 Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="------------enig08DA5921999F659124B2E52D" X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-2.0.2 (smtp.infracaninophile.co.uk [IPv6:::1]); Mon, 06 Nov 2006 21:37:54 +0000 (GMT) X-Virus-Scanned: ClamAV 0.88.5/2167/Mon Nov 6 19:31:46 2006 on happy-idiot-talk.infracaninophile.co.uk X-Virus-Status: Clean X-Spam-Status: No, score=-2.4 required=5.0 tests=AWL,BAYES_00, DKIM_POLICY_TESTING,NO_RELAYS autolearn=ham version=3.1.7 X-Spam-Checker-Version: SpamAssassin 3.1.7 (2006-10-05) on happy-idiot-talk.infracaninophile.co.uk Cc: valqk@lozenetz.org, freebsd-stable@freebsd.org, tom@samplonius.org, freebsd@jdc.parodius.com Subject: Re: netstat -ni - A lot of collisions... X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 06 Nov 2006 21:38:08 -0000 This is an OpenPGP/MIME signed message (RFC 2440 and 3156) --------------enig08DA5921999F659124B2E52D Content-Type: text/plain; charset=ISO-8859-15 Content-Transfer-Encoding: quoted-printable sthaug@nethelp.no wrote: >> I've never paid much attention to what ifconfig says, or what >> managed switches say, as far as speed or duplex negotiation go. >> Most vendors do not play well together. I'll repeat that because >> it needs repeating: most vendors do not play well together. >> Example: anyone familiar with Cisco Catalysts knows of the >> long-standing problem with auto-neg which ultimately requires >> both ends of the connection be set to 100/full. >=20 > I disagree. Autonegotiation used to be a problem, and we used to force > all links to 100/full. But that was 3-4 years ago. These days, the > situation is much improved - and in most cases autonegotiation "just > works". That includes *lots* of Cisco Catalyst switches. Actually, we used to do the same. But nowadays it's gone completely the other way. Modern GigE capable ethernet interfaces seem to work better if you let them autonegotiate. That's even if they aren't running at Gig speed where autoneg is required by design. We've had a series of Broadcomm bge(4) network interfaces that would arbitrarily stop working if hardwired to 100-full, but that are doing just fine when allowed to autoneg. Switches are mostly HP Procurve if that makes any difference. Cheers, Matthew --=20 Dr Matthew J Seaman MA, D.Phil. 7 Priory Courtyard Flat 3 PGP: http://www.infracaninophile.co.uk/pgpkey Ramsgate Kent, CT11 9PW --------------enig08DA5921999F659124B2E52D Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.5 (FreeBSD) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iD8DBQFFT6sd8Mjk52CukIwRCJHSAJ9mA/lI17m3To/b8/o98euMFWXupgCdF4ix t4fhSNbOT1AD9bJ4OT9/FGs= =UQYG -----END PGP SIGNATURE----- --------------enig08DA5921999F659124B2E52D--