OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-ffa6b6-0): addr:8a:52:01:87:43:e0
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:b2:91:97:ad:03:12
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
