OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-40b76f-0): addr:72:a7:51:0a:ee:9d
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:c6:cf:4e:1b:5e:dd
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
