OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:ca:64:48:72:c7:60
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(eth1): addr:fa:16:3e:d9:aa:85
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan21): addr:ce:8f:44:17:c1:81
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(vlan23): addr:7a:33:d2:4b:5f:33
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 5(vlan20): addr:f6:72:e4:ff:06:86
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:d9:aa:85
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
