OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-bd30a8-0): addr:a2:07:5e:3e:74:46
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-7525db-0): addr:9e:14:19:9a:f9:d3
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(ovn-cdd09c-0): addr:4a:8d:2f:4e:a9:c3
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:96:fc:93:ad:56:e7
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
