[ovs-discuss] port mirror on bond0

[Ben Pfaff]

No, this looks OK to me.  I don't know why you are having trouble.

On Tue, Aug 28, 2012 at 12:15:04PM +0200, Oswald, Thomas wrote:
> 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?