OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-ffcd10-0): addr:16:c1:cd:35:c1:bb
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:e6:6b:85:27:fb:1d
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
