OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-050cad-0): addr:e6:8c:ac:73:1f:a2
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-4ff244-0): addr:c6:7a:1c:e8:e4:a5
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:4e:32:79:5d:54:75
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
