From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756450AbZHMX1I (ORCPT ); Thu, 13 Aug 2009 19:27:08 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1755919AbZHMX1H (ORCPT ); Thu, 13 Aug 2009 19:27:07 -0400 Received: from 74-93-104-97-Washington.hfc.comcastbusiness.net ([74.93.104.97]:56547 "EHLO sunset.davemloft.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754403AbZHMX1F (ORCPT ); Thu, 13 Aug 2009 19:27:05 -0400 Date: Thu, 13 Aug 2009 16:27:16 -0700 (PDT) Message-Id: <20090813.162716.207478915.davem@davemloft.net> To: anna.fischer@hp.com Cc: linux-kernel@vger.kernel.org, netdev@vger.kernel.org, shemminger@linux-foundation.org, ptcongdon@ucdavis.edu, evb@yahoogroups.com, bridge@lists.linux-foundation.org, virtualization@lists.linux-foundation.org, kaber@trash.net, arnd@arndb.de, mike.dickson@hp.com, adobriyan@gmail.com, bridge@osdl.org Subject: Re: [PATCH] net/bridge: Add 'hairpin' port forwarding mode From: David Miller In-Reply-To: <0199E0D51A61344794750DC57738F58E6D6B0C70D9@GVW1118EXC.americas.hpqcorp.net> References: <0199E0D51A61344794750DC57738F58E6D6B0C70D9@GVW1118EXC.americas.hpqcorp.net> X-Mailer: Mew version 6.2.51 on Emacs 22.1 / Mule 5.0 (SAKAKI) Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: "Fischer, Anna" Date: Thu, 13 Aug 2009 16:55:16 +0000 > 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 Applied to net-next-2.6