OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-e686e2-0): addr:5a:65:12:10:c6:6b
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-df0984-0): addr:66:fa:8b:a3:e7:94
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(ovn-73ab13-0): addr:ea:98:95:7b:0d:49
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:b6:74:45:03:fd:e9
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
