OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-90b35d-0): addr:36:0f:34:25:fd:76
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-9c4f18-0): addr:6a:76:9c:11:c0:01
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(ovn-a27e69-0): addr:1a:07:91:0d:e2:45
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:32:38:4f:f6:14:22
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
