OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-300a71-0): addr:fe:ce:c1:b8:32:e0
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 10(tap3bafba6b-1b): addr:fe:16:3e:72:42:58
     config:     0
     state:      0
     current:    10MB-FD COPPER
     speed: 10 Mbps now, 0 Mbps max
 11(tape2e5c0f2-50): addr:ee:61:a9:55:fd:4f
     config:     0
     state:      0
     current:    10GB-FD COPPER
     speed: 10000 Mbps now, 0 Mbps max
 12(tap549b7f92-60): addr:fe:16:3e:58:f4:35
     config:     0
     state:      0
     current:    10MB-FD COPPER
     speed: 10 Mbps now, 0 Mbps max
 13(tap6df221c5-e0): addr:d2:b2:7b:ab:cd:08
     config:     0
     state:      0
     current:    10GB-FD COPPER
     speed: 10000 Mbps now, 0 Mbps max
 16(patch-br-int-to): addr:12:d3:db:01:2f:57
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 17(tap42e05e93-e9): addr:fe:16:3e:e7:63:19
     config:     0
     state:      0
     current:    10MB-FD COPPER
     speed: 10 Mbps now, 0 Mbps max
 18(tap53e01534-c0): addr:32:38:48:1a:66:a9
     config:     0
     state:      0
     current:    10GB-FD COPPER
     speed: 10000 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:1a:28:ef:f0:6c:3f
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
