[ovs-discuss] OpenvSwitch port mirroring virtual interfaces to physical interface

[Justin Pettit]

What version of OVS are you using?  Are you using the distribution tarball or the latest from git?  What do you see when you run "ovs-dpctl dump-flows br0" when it should be mirroring?  You should see any entry for both the destination and mirror port(s).  Try it with both the case that does and does not work to see if they look different.  You may also want to check the logs for any strange messages.

--Justin


On Feb 20, 2011, at 11:25 PM, Jen-Wei Hu wrote:

> Hi Justin, 
> 
> Thanks for your response. The MTU value of all interface (tap0-tap2, eth0, eth1) except lo in our host is default value 1500. If not this issue, have any good comments? Thanks!
> 
> Jen-Wei
> 
> On Mon, Feb 21, 2011 at 1:41 PM, Justin Pettit <jpettit at nicira.com> wrote:
> OVS shouldn't have any problem mirroring to physical ports.  You may want to make sure that there aren't any MTU issues (i.e., the MTU on the taps is larger than eth0).
> 
> --Justin
> 
> 
> On Feb 20, 2011, at 5:31 PM, Jen-Wei Hu wrote:
> 
> > Hi all,
> >
> > In addition to man of ovs-vsctl, this thread (http://openvswitch.org/pipermail/discuss_openvswitch.org/2010-December/001150.html) helps us to set up port mirroring in our environment. But we meet some problems which you all help us. In our host, which installed ovs, have 3 virtual interfaces (tap0 - tap2) and 2 physical interface (eth0, eth1). We have added tap0-tap2, eth0, eth1 to bridge br0. Our ovs could mirror the traffic from tap0 and tap1 to tap2 successfully but mirror the same traffic to eth1 will not work. Could ovs mirror VM traffic to physical interface? Or we have some basic concept need to be clear?
> >
> > Thanks
> >
> > Jen-Wei
> > _______________________________________________
> > discuss mailing list
> > discuss at openvswitch.org
> > http://openvswitch.org/mailman/listinfo/discuss_openvswitch.org
> 
>