OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-e236d9-0): addr:36:a1:0f:4f:81:c8
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-c15e92-0): addr:ce:34:6d:f4:34:6b
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:c2:51:ac:6c:eb:53
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
