OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-79d6ec-0): addr:0e:72:ac:8d:9b:ac
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-1b9f6f-0): addr:de:44:14:5b:18:6e
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:9a:de:b6:9b:cb:0b
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
