OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-e3f377-0): addr:f2:85:ad:60:d9:52
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-5c7f3d-0): addr:3a:46:4a:02:fc:4c
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(ovn-3f1b6d-0): addr:ce:8b:3e:89:4d:9a
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:12:2e:4c:ad:d4:10
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
