OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:fa:f5:60:0e:4a:fe
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan20): addr:82:f5:14:ba:72:8f
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan21): addr:3e:3f:fb:21:c3:3a
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(eth1): addr:fa:16:3e:e8:bc:fa
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:e8:bc:fa
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
