OFPST_PORT_DESC reply (xid=0x2):
 1(tap51e20b74-05): addr:fa:16:3e:fa:22:72
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(tap03dae3fb-70): addr:fa:16:3e:6f:74:86
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(tap3f8dd461-8f): addr:fa:16:3e:7f:8a:a0
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(patch-br-int-to): addr:da:3b:6b:dd:d0:bc
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 7(tapa8607b34-d7): addr:fe:16:3e:34:33:f1
     config:     0
     state:      0
     current:    10MB-FD COPPER
     speed: 10 Mbps now, 0 Mbps max
 8(tap184a48f0-50): addr:ce:8e:60:ec:c9:5b
     config:     0
     state:      0
     current:    10GB-FD COPPER
     speed: 10000 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:c2:8b:27:ef:4d:59
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
