From: Eric Biederman <ebiederm@aristanetworks.com>
Date: Wed, 4 Mar 2009 07:36:04 +0000 (-0800)
Subject: veth: Allow setting the L3 MTU
X-Git-Tag: v2.6.30-rc1~662^2~378
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=38d408152a86598a50680a82fe3353b506630409;p=pandora-kernel.git

veth: Allow setting the L3 MTU

The limitation to only 1500 byte mtu's limits the utility of the veth
device for testing routing.  So implement implement a configurable
MTU.

For consistency I drop packets on the receive side when they are
larger than the MTU.  I count those drops.  And I allow
a little padding for vlan headers.

I also test the mtu when a new device is created with netlink
because that path currently bypasses the current mtu setting
code.

Signed-off-by: Eric Biederman <ebiederm@aristanetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

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