From owner-freebsd-stable@FreeBSD.ORG Fri Feb 4 14:35:14 2011 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 00E181065672 for ; Fri, 4 Feb 2011 14:35:14 +0000 (UTC) (envelope-from ml@my.gd) Received: from mail-wy0-f182.google.com (mail-wy0-f182.google.com [74.125.82.182]) by mx1.freebsd.org (Postfix) with ESMTP id 931DB8FC29 for ; Fri, 4 Feb 2011 14:35:13 +0000 (UTC) Received: by wyf19 with SMTP id 19so2363285wyf.13 for ; Fri, 04 Feb 2011 06:35:12 -0800 (PST) Received: by 10.227.24.73 with SMTP id u9mr7931311wbb.168.1296830112003; Fri, 04 Feb 2011 06:35:12 -0800 (PST) Received: from dfleuriot.technique-admin.paris.hi-media-techno.com ([83.167.62.196]) by mx.google.com with ESMTPS id y29sm563460wbd.10.2011.02.04.06.35.11 (version=SSLv3 cipher=RC4-MD5); Fri, 04 Feb 2011 06:35:11 -0800 (PST) Message-ID: <4D4C0E9E.80304@my.gd> Date: Fri, 04 Feb 2011 15:35:10 +0100 From: Damien Fleuriot User-Agent: Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.6; en-US; rv:1.9.2.13) Gecko/20101207 Thunderbird/3.1.7 MIME-Version: 1.0 To: Bernhard Schmidt References: <4D4BED80.5060806@my.gd> <201102041342.03522.bschmidt@freebsd.org> In-Reply-To: <201102041342.03522.bschmidt@freebsd.org> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Cc: freebsd-stable@freebsd.org Subject: Re: link aggregation - bundling 2 lagg interfaces together 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: Fri, 04 Feb 2011 14:35:14 -0000 On 2/4/11 1:42 PM, Bernhard Schmidt wrote: > On Friday 04 February 2011 13:13:52 Damien Fleuriot wrote: >> Hello list, >> >> >> >> I have a firewall with 2x Intel pro dual port cards. >> >> On Intel A , port 1 goes to switch 1, port 2 goes to switch 2 >> On Intel B , port 1 goes to switch 1, port 2 goes to switch 2 >> >> >> I have created the following 2 lagg devices using LACP: >> >> lagg0 = A1 + B1 >> lagg1 = A2 + B2 >> >> This works fine. >> >> >> Now, what I had in mind was creating a lagg2 device using lagg0 and >> lagg1 with failover. >> >> That would provide redundancy in case of a switch failure. >> >> ifconfig won't let me though: >> >> # ifconfig lagg2 laggproto failover laggport lagg0 laggport lagg1 >> ifconfig: SIOCSLAGGPORT: Invalid argument >> >> >> >> I suppose it's not possible to aggregate lagg interfaces ? >> >> That would shatter my dreams :( > > I have no clue if that is at all possible, or makes any sense at all, > but can't you just add all 4 ports one lagg interface? > I'm afraid this is not an option, the switches are not stacked. They will create 2 separate etherchannels, and I'll get alerts about the MAC addresses flapping -.-