From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755061AbZHMRHj (ORCPT ); Thu, 13 Aug 2009 13:07:39 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752400AbZHMRHi (ORCPT ); Thu, 13 Aug 2009 13:07:38 -0400 Received: from moutng.kundenserver.de ([212.227.126.177]:52231 "EHLO moutng.kundenserver.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752291AbZHMRHh (ORCPT ); Thu, 13 Aug 2009 13:07:37 -0400 From: Arnd Bergmann To: "Fischer, Anna" Subject: Re: [PATCH] net/bridge: Add 'hairpin' port forwarding mode Date: Thu, 13 Aug 2009 19:06:21 +0200 User-Agent: KMail/1.12.0 (Linux/2.6.31-5-generic; KDE/4.3.0; x86_64; ; ) Cc: "linux-kernel@vger.kernel.org" , "netdev@vger.kernel.org" , Stephen Hemminger , "Paul Congdon (UC Davis)" , "evb@yahoogroups.com" , "bridge@lists.linux-foundation.org" , "davem@davemloft.net" , "virtualization@lists.linux-foundation.org" , "kaber@trash.net" , "Dickson, Mike (ISS Software)" , "adobriyan@gmail.com" , "bridge@osdl.org" References: <0199E0D51A61344794750DC57738F58E6D6B0C70D9@GVW1118EXC.americas.hpqcorp.net> In-Reply-To: <0199E0D51A61344794750DC57738F58E6D6B0C70D9@GVW1118EXC.americas.hpqcorp.net> X-Face: I@=L^?./?$U,EK.)V[4*>`zSqm0>65YtkOe>TFD'!aw?7OVv#~5xd\s,[~w]-J!)|%=]> =?utf-8?q?+=0A=09=7EohchhkRGW=3F=7C6=5FqTmkd=5Ft=3FLZC=23Q-=60=2E=60Y=2Ea=5E?= =?utf-8?q?3zb?=) =?utf-8?q?+U-JVN=5DWT=25cw=23=5BYo0=267C=26bL12wWGlZi=0A=09=7EJ=3B=5Cwg?= =?utf-8?q?=3B3zRnz?=,J"CT_)=\H'1/{?SR7GDu?WIopm.HaBG=QYj"NZD_[zrM\Gip^U MIME-Version: 1.0 Content-Type: Text/Plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Message-Id: <200908131906.21916.arnd@arndb.de> X-Provags-ID: V01U2FsdGVkX19YsopkFtqe0aGAGwP9pi4WeSfLsae7ogqu5Z6 Ufq0yGV/aNDUyfAPyA7m8bmaYsTMdDKtKtbGaKB66zsG4cT0fN 5IG6XBmFjHnTYlIsBCMQw== Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thursday 13 August 2009, Fischer, Anna wrote: > This patch adds a 'hairpin' (also called 'reflective relay') mode > port configuration to the Linux Ethernet bridge kernel module. > A bridge supporting hairpin forwarding mode can send frames back > out through the port the frame was received on. > > Hairpin mode is required to support basic VEPA (Virtual > Ethernet Port Aggregator) capabilities. > > You can find additional information on VEPA here: > http://tech.groups.yahoo.com/group/evb/ > http://www.ieee802.org/1/files/public/docs2009/new-hudson-vepa_seminar-20090514d.pdf > http://www.internet2.edu/presentations/jt2009jul/20090719-congdon.pdf > > An additional patch 'bridge-utils: Add 'hairpin' port forwarding mode' > is provided to allow configuring hairpin mode from userspace tools. > > Signed-off-by: Paul Congdon > Signed-off-by: Anna Fischer Acked-by: Arnd Bergmann