From owner-freebsd-net@FreeBSD.ORG Thu Jan 22 17:28:24 2004 Return-Path: Delivered-To: freebsd-net@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 69F8D16A4CE for ; Thu, 22 Jan 2004 17:28:24 -0800 (PST) Received: from odin.ac.hmc.edu (Odin.AC.HMC.Edu [134.173.32.75]) by mx1.FreeBSD.org (Postfix) with ESMTP id BF20C43D2F for ; Thu, 22 Jan 2004 17:28:22 -0800 (PST) (envelope-from brdavis@odin.ac.hmc.edu) Received: from odin.ac.hmc.edu (IDENT:brdavis@localhost.localdomain [127.0.0.1]) by odin.ac.hmc.edu (8.12.10/8.12.3) with ESMTP id i0N1S7aT001473; Thu, 22 Jan 2004 17:28:07 -0800 Received: (from brdavis@localhost) by odin.ac.hmc.edu (8.12.10/8.12.3/Submit) id i0N1S7Q9001471; Thu, 22 Jan 2004 17:28:07 -0800 Date: Thu, 22 Jan 2004 17:28:06 -0800 From: Brooks Davis To: Mike Hunter Message-ID: <20040123012806.GA608@Odin.AC.HMC.Edu> References: <20040123011206.GA1701@ack.Berkeley.EDU> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="0OAP2g/MAC+5xKAE" Content-Disposition: inline In-Reply-To: <20040123011206.GA1701@ack.Berkeley.EDU> User-Agent: Mutt/1.5.4i X-Virus-Scanned: by amavisd-milter (http://amavis.org/) on odin.ac.hmc.edu cc: dell-d800@eicat.ca cc: freebsd-net@freebsd.org Subject: Re: Dell D800 (FBSD 5.2-release) Broadcom BCM5705M MTU/Jumbo Problem X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 23 Jan 2004 01:28:24 -0000 --0OAP2g/MAC+5xKAE Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Thu, Jan 22, 2004 at 05:12:06PM -0800, Mike Hunter wrote: > Hi everybody, >=20 > I'm going to be trying to get gigabit throughput between my laptop (Dell > Latitude D800 running 5.2-release) and a shuttle box running FreeBSD 5.1= =20 > (not in front of me at the moment.) As part of the process, I attempted > to increase the frame size on my laptop, only to be greeted with > disappointment: >=20 > celeste# ifconfig bge0 > bge0: flags=3D8802 mtu 1500 > options=3D1b > ether 00:0b:db:99:d6:06 > media: Ethernet 1000baseTX (none) > status: no carrier > celeste# ifconfig bge0 mtu 9000 > ifconfig: ioctl (set mtu): Invalid argument > celeste# ifconfig bge0 mtu 1501 > ifconfig: ioctl (set mtu): Invalid argument > celeste# ifconfig bge0 mtu 1500 > celeste# >=20 > The C file talks about being able to do jumbo frames when the mtu is big > enough...anybody know what I'm missing? My card is a "Broadcom BCM5705M" > and I'm running FreeBSD 5.2-release. When I asked google, it mostly > pointed me at comments in if_bge.c talking about jumbo frames :| =46rom looking at the code, BCM5705's don't support Jumbo Frames. -- Brooks --=20 Any statement of the form "X is the one, true Y" is FALSE. PGP fingerprint 655D 519C 26A7 82E7 2529 9BF0 5D8E 8BE9 F238 1AD4 --0OAP2g/MAC+5xKAE Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.1 (GNU/Linux) iD8DBQFAEHilXY6L6fI4GtQRAqmTAJ0bLYLuER274/UkCDPGI8C/tbTSbQCgyp1v dPlUNbBOUfWYXHBwupc7cPY= =e5Ib -----END PGP SIGNATURE----- --0OAP2g/MAC+5xKAE--