OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-b385c6-0): addr:a6:9b:59:7a:72:d9
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-d99a56-0): addr:c6:39:ac:f6:ce:a0
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:ce:78:e5:62:72:58
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
