Easily tracing a packet with ofproto/trace and ovs-tcpundump

gistfile1.txt

# Get packet info thatll later be used for the trace. This info describes the flow.
1. tcpdump -XX -c1 -nn -i <dev> <some filter thatll just capture the flow you want> | ovs-tcpundump
# Lookup the port ID on which the packet is coming in
2. ovs-ofctl show <ovs bridge>
# Perform trace
ovs-appctl ofproto/trace <ovs bridge> in_port=${port id in step 2} ${pkt data from step 1}