[ovs-dev] Tunneled packet getting lost in OVS

Ben Pfaff blp at nicira.com
Mon Sep 17 20:32:29 UTC 2012


On Mon, Sep 17, 2012 at 11:09:53AM -0700, kashyap TA wrote:
>    I am not sure if this is the right forum to put this question across, If
> its not, I apologize. I have an issue where I have an Encaped packet coming
> on a interface on Fedora 17. I can see the packet when I do tcpdump . That
> packet is supposed to go to OVS and then get directed towards the slow path
> as this is the first packet, and should show up in my controller. The
> packet never shows up in the controller. Can some one help me debug this?
> I enabled some logs using ovs-appctl and I dont see any log for this
> packet. Is there a log to print every packet that goes through ovs? One
> thing to note is that the packet snap type is 136. Would that cause OVS to
> drop it or something? Please let me know. Any kind of help will help.. :-)

I'd look for the packet in the "dpif" log module and for a
corresponding flow in "ovs-dpctl dump-flows" output.



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