OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:72:32:cb:ef:05:85
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan21): addr:22:e0:ec:67:5b:f2
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan20): addr:9e:f7:11:07:33:62
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(vlan23): addr:56:a9:a1:25:68:80
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 5(eth1): addr:fa:16:3e:ba:66:c0
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:ba:66:c0
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
