[ovs-discuss] port mirror on bond0

[Oswald, Thomas]

in syslog I see this messages: 

Aug 28 12:14:04 autolab8 ovs-vsctl: 00001|vsctl|INFO|Called as ovs-vsctl add-port br100 eth3
Aug 28 12:14:04 autolab8 kernel: [ 2308.962045] device eth3 entered promiscuous mode
Aug 28 12:14:04 autolab8 ovs-vsctl: 00001|vsctl|INFO|Called as ovs-vsctl -- set Bridge br100 mirrors=@m -- --id=@bond0 get Port bond0 -- --id=@eth3 get Port eth3 -- --id=@m create Mirror name=mymirror select-dst-port=@bond0 select-src-port=@bond0 output-port=@eth3

On a vm I execute a ping to a remote router-ip (outside the host). On the correspondig vnet0 I get a dump with tcpdump. Also on eth1 and eth2 that are members of bond0

# ovs-vsctl show
d1c0be94-786d-452e-bcbf-a294edfdddea
    Bridge "br100"
        Port "eth3"
            Interface "eth3"
        Port "bond0"
            trunks: [3000, 3001, 3002, 3003]
            Interface "eth2"
            Interface "eth1"
        Port "vnet0"
            tag: 3001
            Interface "vnet0"
        Port "br3001"
            tag: 3001
            Interface "br3001"
                type: internal
        Port "br100"
            Interface "br100"
                type: internal
    ovs_version: "1.4.0+build0"


# ovs-appctl bond/list
bond    type    slaves
bond0   stable  eth1, eth2

do you see anything that is strange? 



-----Ursprüngliche Nachricht-----
Von: Ben Pfaff [mailto:blp at nicira.com] 
Gesendet: Montag, 27. August 2012 02:06
An: Oswald, Thomas
Cc: discuss at openvswitch.org
Betreff: Re: [ovs-discuss] port mirror on bond0

On Fri, Aug 24, 2012 at 11:35:35AM +0200, Oswald, Thomas wrote:
> I have an issue with a port mirror. I bundled the interfaces eth1, eth2 in bond0. After that I want to see the network traffic on it. "tcpdump -i bond0" doesn't work. I configured a port mirror in the following way: 
> 
> 	ovs-vsctl add-port br100 eth3
> 
> 	ovs-vsctl -- set Bridge br100 mirrors=@m 
> 		-- --id=@bond0 get Port bond0 
> 		-- --id=@eth3 get Port eth3 
> 		-- --id=@m create Mirror name=mymirror select-dst-port=@bond0 select-src-port=@bond0 output-port=@eth3
> 
> 
> Now I'm a little bit confused because I assumed that all traffic ingress and egress on bond0 is mirrored to eth3 and I just have to tcpdump on that interface, but I see nothing. 
> 
> Any idea? 

Your configuration looks correct to me.  Is there anything in the
ovs-vswitchd log about a configuration problem?