Date: Wed, 22 Feb 2012 22:29:23 +0000 (UTC) From: Andrew Thompson <thompsa@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r232010 - head/share/man/man4 Message-ID: <201202222229.q1MMTNZs071844@svn.freebsd.org>
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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
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