From owner-freebsd-net@FreeBSD.ORG Wed Feb 6 10:32:39 2013 Return-Path: Delivered-To: freebsd-net@freebsd.org Received: from mx1.freebsd.org (mx1.FreeBSD.org [8.8.178.115]) by hub.freebsd.org (Postfix) with ESMTP id 32A6A7D3; Wed, 6 Feb 2013 10:32:39 +0000 (UTC) (envelope-from lars@netapp.com) Received: from mx12.netapp.com (mx12.netapp.com [216.240.18.77]) by mx1.freebsd.org (Postfix) with ESMTP id 176C8F17; Wed, 6 Feb 2013 10:32:38 +0000 (UTC) X-IronPort-AV: E=Sophos;i="4.84,614,1355126400"; d="scan'208";a="17031072" Received: from smtp1.corp.netapp.com ([10.57.156.124]) by mx12-out.netapp.com with ESMTP; 06 Feb 2013 02:32:36 -0800 Received: from vmwexceht01-prd.hq.netapp.com (exchsmtp.hq.netapp.com [10.106.76.239]) by smtp1.corp.netapp.com (8.13.1/8.13.1/NTAP-1.6) with ESMTP id r16AWa90025677; Wed, 6 Feb 2013 02:32:36 -0800 (PST) Received: from SACEXCMBX01-PRD.hq.netapp.com ([169.254.2.54]) by vmwexceht01-prd.hq.netapp.com ([10.106.76.239]) with mapi id 14.02.0328.009; Wed, 6 Feb 2013 02:32:35 -0800 From: "Eggert, Lars" To: Jack Vogel Subject: Re: Data Center Bridging? Thread-Topic: Data Center Bridging? Thread-Index: AQHN+LdDgifA/mtK/UqYvtRGZs2iTJhWEL0AgAACXoCAABzGAIAXD1iA Date: Wed, 6 Feb 2013 10:32:34 +0000 Message-ID: References: <50FEBF0C.6050307@freebsd.org> <50FEC109.5080601@freebsd.org> In-Reply-To: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [10.106.53.51] Content-Type: text/plain; charset="iso-8859-1" Content-ID: <83A03C9D87A4D94F84CDC20D4C836075@tahoe.netapp.com> Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Cc: "freebsd-net@freebsd.org" , "Vogel, Jack" X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 06 Feb 2013 10:32:39 -0000 Hi Jack, On Jan 22, 2013, at 19:23, Jack Vogel wrote: > I have never implemented this in the FreeBSD drivers primarily because th= e > motivation for it say, in Linux, > was to handle multiple traffic classes, for instance FCOE or iSCSI, but > FreeBSD has not had these features > to implement this for. Give me a reason to do it, and I can see about > adding it :) I'm interested in seeing if DCB can be used for lossless IP communication o= ver a simple and private LAN fabric. I have some student cycles that I can = direct at helping with the implementation, if that's useful? Lars=