OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-0a7cae-0): addr:de:68:36:d0:0a:2f
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:0a:56:3c:5b:74:a0
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
