OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-60a170-0): addr:66:e8:bd:4b:bc:74
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-504f48-0): addr:0a:d4:b9:16:d6:c0
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:e2:0d:5c:42:73:8e
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
