OFPST_PORT_DESC reply (xid=0x2):
 1(tap61afd60f-88): addr:fa:16:3e:50:30:5d
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(tap4bed13d5-ed): addr:fa:16:3e:eb:97:83
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(tapcf58ea1a-f9): addr:fa:16:3e:17:46:c7
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(patch-br-int-to): addr:3e:eb:d1:45:87:bb
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 7(tapf55ec4ea-9a): addr:fe:16:3e:78:db:5d
     config:     0
     state:      0
     current:    10MB-FD COPPER
     speed: 10 Mbps now, 0 Mbps max
 8(tap71972b09-e0): addr:a6:8b:f8:f4:3e:cb
     config:     0
     state:      0
     current:    10GB-FD COPPER
     speed: 10000 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:82:f4:32:8b:12:34
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
