OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-62a6b9-0): addr:0a:35:0c:bf:5c:52
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-fc3194-0): addr:12:c3:8f:11:26:4b
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 20(tapf41fc9dc-ac): addr:fe:16:3e:32:70:79
     config:     0
     state:      0
     current:    10MB-FD COPPER
     speed: 10 Mbps now, 0 Mbps max
 21(tapae2a126f-90): addr:12:9d:ed:53:1f:c0
     config:     0
     state:      0
     current:    10GB-FD COPPER
     speed: 10000 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:aa:70:39:ee:3c:47
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
