From owner-freebsd-net@FreeBSD.ORG Fri Aug 2 07:36:32 2013 Return-Path: Delivered-To: freebsd-net@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [8.8.178.115]) (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTP id E334420D for ; Fri, 2 Aug 2013 07:36:32 +0000 (UTC) (envelope-from steve.read@netasq.com) Received: from work.netasq.com (gwlille.netasq.com [91.212.116.1]) by mx1.freebsd.org (Postfix) with ESMTP id AA8642904 for ; Fri, 2 Aug 2013 07:36:32 +0000 (UTC) Received: from work.netasq.com (localhost [127.0.0.1]) by work.netasq.com (Postfix) with ESMTP id 13424270630D for ; Fri, 2 Aug 2013 09:36:31 +0200 (CEST) Received: from stever.netasq.com (unknown [10.2.0.1]) by work.netasq.com (Postfix) with ESMTPA id CAE2227062A4 for ; Fri, 2 Aug 2013 09:36:30 +0200 (CEST) Message-ID: <51FB617E.2090904@netasq.com> Date: Fri, 02 Aug 2013 09:36:30 +0200 From: Steve Read User-Agent: Mozilla/5.0 (X11; FreeBSD amd64; rv:17.0) Gecko/20130305 Thunderbird/17.0.3 MIME-Version: 1.0 To: freebsd-net@freebsd.org Subject: Re: Intel 4-port ethernet adaptor link aggregation issue References: In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit 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: Fri, 02 Aug 2013 07:36:33 -0000 On 01.08.2013 20:07, Joe Moog wrote: > We have an iXsystems 1U server (E5) with an Intel 4-port ethernet NIC installed, model I350-T4 (manufactured May of 2013). We're trying to bind the 4 ports on this NIC together into a single lagg port, connected LACP to a distribution switch (Cisco 4900-series). We are able to successfully bind the 2 on-board ethernet ports to a single lagg, however the NIC is not so cooperative. At first we thought we had a bad NIC, but a replacement has not fixed the issue. We are thinking there may be a driver limitation with these Intel ethernet NICs when attempting to bind more than 2 ports to a lagg. > > FreeBSD version: > FreeBSD 9.1-PRERELEASE #0 r244125: Wed Dec 12 11:47:47 CST 2012 > > rc.conf: > # LINK AGGREGATION > ifconfig_igb2="UP" > ifconfig_igb3="UP" > ifconfig_igb4="UP" > ifconfig_igb5="UP" > cloned_interfaces="lagg0" > ifconfig_lagg0="laggproto lacp laggport igb2 laggport igb3 laggport igb4 laggport igb5" > ifconfig_lagg0="inet 192.168.1.14 netmask 255.255.255.0" Am I the only one who noticed that you replaced the value of $ifconfig_lagg0 that specifies the proto and the ports with one that specifies just the address? Merge the two ifconfig_lagg0 lines into one, and it will work infinitely better, or at least no worse. ifconfig_lagg0="laggproto lacp laggport igb2 laggport igb3 laggport igb4 laggport igb5 inet 192.168.1.14 netmask 255.255.255.0" -- Steve