OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-7c6604-0): addr:96:ef:8d:13:ea:0d
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-090491-0): addr:a2:d6:69:85:9f:86
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:82:4a:7e:72:d6:d5
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
