OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-cc0ff0-0): addr:da:43:cc:9d:63:69
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-d15dd6-0): addr:82:f2:dd:79:e5:d9
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:56:37:1e:87:0d:02
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
