OFPST_PORT_DESC reply (xid=0x2):
 1(eth1): addr:fa:16:3e:ff:a8:13
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan22): addr:06:b6:c3:94:aa:84
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan20): addr:86:8a:12:b8:84:4e
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(vlan23): addr:f6:f8:75:a4:a3:0e
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 5(vlan21): addr:da:27:7f:16:22:96
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 6(patch-provnet-2): addr:ba:fa:e2:a3:a2:18
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:ff:a8:13
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
