OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-13039c-0): addr:ae:fb:4b:1c:30:6c
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:da:10:de:05:19:74
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
