OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-d552ee-0): addr:7e:7b:a1:3e:da:a0
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:ba:40:ce:f2:37:87
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
