OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-d54b42-0): addr:b6:bd:c0:8c:ad:31
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:da:73:74:26:1e:fc
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
