OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-011fdd-0): addr:be:41:ae:e7:32:58
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-cb98fb-0): addr:42:e3:26:15:45:3b
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(ovn-45d4c7-0): addr:da:4e:2b:a3:c3:3f
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:9a:49:09:9f:25:42
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
