OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-74c9be-0): addr:6a:db:63:25:ec:19
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:6a:8b:b8:ed:42:55
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
