OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-964ae1-0): addr:1a:4d:ef:0e:3c:a9
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-329dd4-0): addr:e6:d9:65:01:c8:9d
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:42:cd:48:e6:f2:a4
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
