OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-368b6f-0): addr:8a:a2:5a:04:0c:fb
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-cc140a-0): addr:ba:a2:f7:4e:c9:22
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(ovn-3f5a0f-0): addr:de:54:71:04:cb:f6
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:c6:16:c8:39:ed:c2
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
