OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-6718a9-0): addr:9a:18:9c:6f:5c:d5
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-672825-0): addr:12:44:8d:85:14:60
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(ovn-e4c887-0): addr:5e:4e:d2:4b:71:05
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:f2:a0:56:c7:d4:83
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
