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List: openvswitch-discuss
Subject: [ovs-discuss] How to see if the physical host is seeing VLAN tagged packets correctly leaving/arrivi
From: qzchenwl () gmail ! com (=?UTF-8?B?6ZmI5paH6b6Z?=)
Date: 2010-07-30 0:12:29
Message-ID: AANLkTikJuQuk0G6guGw9Gtibpo3AkbwAjV4_-oP4HfUM () mail ! gmail ! com
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Thanks!
2010/7/30 Ben Pfaff <blp at nicira.com>
> On Wed, Jul 28, 2010 at 10:24 PM, ??? <qzchenwl at gmail.com> wrote:
> > The physical host is running OvS.
> > ovs-vsctl add-br br0
> > ovs-vsctl add-port br0 tap1.0 tag=100
> > How to see if the packet from/to tap1.0 is tagged right?
>
> You could use tcpdump on a trunk port, e.g.:
> tcpdump -pne -i eth0 vlan 100
> presuming that eth0 is a trunk port also on br0.
>
> (Be sure to include the "vlan 100" keywords on the tcpdump command line.
> tcpdump is not very good about dealing with vlans and needs a bit of
> help.)
>
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