OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-d491bf-0): addr:e2:94:e8:ea:bb:d3
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:3a:d5:95:52:20:a5
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
