OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-bd0880-0): addr:72:f5:7a:13:fb:80
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:aa:83:2b:6e:67:1c
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
