OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-197a9a-0): addr:1a:21:5b:48:a4:d3
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:fa:f9:9c:77:a8:18
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
