OFPST_PORT_DESC reply (xid=0x2):
 2(ovn-18df05-0): addr:ee:a8:ac:74:d7:3e
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:02:26:e9:87:35:a5
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
