OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-de4c81-0): addr:ba:af:b7:8d:fb:80
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:6e:92:a9:10:bd:00
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
