[ovs-discuss] [ovn] help with creating logical topology with l3 gateway

Dumitru Ceara dceara at redhat.com
Thu Mar 25 11:43:56 UTC 2021


On 3/25/21 12:40 PM, Dumitru Ceara wrote:
>> Also, to see exactly where the packet is dropped, please share the
>> output of:
>>
>> inport=$(ovs-vsctl --bare --columns ofport list interface vm1)              
>> flow=40440000000340440000000108004500005417cd40004001b3980a000102644000020800e1d35d0a0001c1635c6000000000d789050000000000101112131415161718191a1b1c1d1e1f202122232425262728292a2b2c2d2e2f3031323334353637
> To "demystify" this a bit, I got the packet contents by running the
> following command while ping was running from vm1:
> 
> ip netns exec vm1 tcpdump -vvvnne -i vm1 -c1 -XX | ovs-tcpundump
> 
>> ovs-appctl ofproto/trace br-int in_port=$in_port $flow | ovn-detrace

And here's a typo, sorry, should be:

ovs-appctl ofproto/trace br-int in_port=$inport $flow | ovn-detrace



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