OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-8ec1a8-0): addr:ea:72:9b:a6:eb:c7
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-53ced8-0): addr:a6:0d:cc:8c:39:c8
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(ovn-7018ca-0): addr:86:79:01:f7:1c:26
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:02:13:cc:ad:16:9e
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
