OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-386a1a-0): addr:5a:71:e5:53:1d:b8
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-9990b8-0): addr:b2:1e:4f:4a:be:45
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:de:dd:cd:a9:07:c8
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
