OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-ca3ef1-0): addr:3a:db:db:d3:c5:03
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-2dbb18-0): addr:16:96:12:2b:7c:75
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:ee:f2:24:2b:71:02
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
