OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-30bd13-0): addr:1a:4f:5b:44:44:61
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-cc0a50-0): addr:e6:6d:18:05:57:ff
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(ovn-005c4c-0): addr:c2:d0:e7:d1:df:62
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:f6:af:2b:ac:de:20
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
