OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-ff167d-0): addr:0a:0a:da:cb:a7:e7
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:52:88:f2:3c:0d:4b
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
