OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-5c7f3d-0): addr:92:56:7d:9b:86:a6
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-facc7c-0): addr:56:8e:13:7a:db:1c
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(ovn-3f1b6d-0): addr:32:31:c6:fa:23:a7
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:ca:91:eb:d2:c3:b5
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
