OFPST_PORT_DESC reply (xid=0x2):
 1(eth1): addr:fa:16:3e:08:72:ba
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan20): addr:4a:36:d1:96:24:fd
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan22): addr:4e:91:22:c5:8e:da
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(vlan44): addr:a6:69:7d:34:98:6f
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 5(vlan23): addr:e6:56:3f:8b:68:64
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 6(vlan21): addr:f6:51:1c:6e:14:73
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 7(patch-provnet-b): addr:2e:8a:82:73:cc:12
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:08:72:ba
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
