OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-e45a51-0): addr:a6:ed:1b:22:13:0c
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:e2:01:35:b5:e4:67
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
