From owner-svn-src-head@FreeBSD.ORG  Wed Feb 22 22:29:23 2012
Return-Path: <owner-svn-src-head@FreeBSD.ORG>
Delivered-To: svn-src-head@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34])
	by hub.freebsd.org (Postfix) with ESMTP id DD4B61065677;
	Wed, 22 Feb 2012 22:29:23 +0000 (UTC)
	(envelope-from thompsa@FreeBSD.org)
Received: from svn.freebsd.org (svn.freebsd.org [IPv6:2001:4f8:fff6::2c])
	by mx1.freebsd.org (Postfix) with ESMTP id CC98C8FC08;
	Wed, 22 Feb 2012 22:29:23 +0000 (UTC)
Received: from svn.freebsd.org (localhost [127.0.0.1])
	by svn.freebsd.org (8.14.4/8.14.4) with ESMTP id q1MMTNC2071846;
	Wed, 22 Feb 2012 22:29:23 GMT (envelope-from thompsa@svn.freebsd.org)
Received: (from thompsa@localhost)
	by svn.freebsd.org (8.14.4/8.14.4/Submit) id q1MMTNZs071844;
	Wed, 22 Feb 2012 22:29:23 GMT (envelope-from thompsa@svn.freebsd.org)
Message-Id: <201202222229.q1MMTNZs071844@svn.freebsd.org>
From: Andrew Thompson <thompsa@FreeBSD.org>
Date: Wed, 22 Feb 2012 22:29:23 +0000 (UTC)
To: src-committers@freebsd.org, svn-src-all@freebsd.org,
	svn-src-head@freebsd.org
X-SVN-Group: head
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Cc: 
Subject: svn commit: r232010 - head/share/man/man4
X-BeenThere: svn-src-head@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: SVN commit messages for the src tree for head/-current
	<svn-src-head.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/svn-src-head>,
	<mailto:svn-src-head-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/svn-src-head>
List-Post: <mailto:svn-src-head@freebsd.org>
List-Help: <mailto:svn-src-head-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/svn-src-head>,
	<mailto:svn-src-head-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Wed, 22 Feb 2012 22:29:24 -0000

Author: thompsa
Date: Wed Feb 22 22:29:23 2012
New Revision: 232010
URL: http://svn.freebsd.org/changeset/base/232010

Log:
  Document the net.link.lagg.X.use_flowid sysctl from r232008.

Modified:
  head/share/man/man4/lagg.4

Modified: head/share/man/man4/lagg.4
==============================================================================
--- head/share/man/man4/lagg.4	Wed Feb 22 22:09:17 2012	(r232009)
+++ head/share/man/man4/lagg.4	Wed Feb 22 22:29:23 2012	(r232010)
@@ -16,7 +16,7 @@
 .\"
 .\" $FreeBSD$
 .\"
-.Dd October 18, 2010
+.Dd February 23, 2012
 .Dt LAGG 4
 .Os
 .Sh NAME
@@ -134,6 +134,18 @@ variable in
 .Pp
 The MTU of the first interface to be added is used as the lagg MTU.
 All additional interfaces are required to have exactly the same value.
+.Pp
+The
+.Ic loadbalance
+and
+.Ic lacp
+modes will use the RSS hash from the network card if available to avoid
+computing one, this may give poor traffic distribution if the hash is invalid
+or uses less of the protocol header information.
+Local hash computation can be forced by setting the
+.Va net.link.lagg.X.use_flowid
+.Xr sysctl 8
+variable to zero where X is the interface number.
 .Sh EXAMPLES
 Create a 802.3ad link aggregation using LACP with two
 .Xr bge 4