Hi all:
       I am using OVN as controller to set/modify flow entries of OVS in 
openstack Pike environment. I have found sometimes pkts should sent to OVN as 
the following openflow entry:
cookie=0x569f90ea, duration=402799.438s, table=22, n_packets=0, n_bytes=0, 
idle_age=65534, hard_age=65534, priority=100,udp,metadata=0x18,tp_dst=53 
actions=controller(userdata=00.00.00.06.00.00.00.00.00.01.de.10.00.00.00.64,pause),resubmit(,23)
       But unlikely other openflow controllers, for ovn I can't capture pkts 
sent to controller, and pkts that controller returns to the switch. I guess the 
communication between OVN and vswitch is unix socket, am I right? How could I 
capture pkts between OVN and Vswitch ?

Thank you!

Timo 


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