OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-e01c02-0): addr:da:ab:01:f4:87:e7
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:12:5f:f3:ba:fb:a4
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
