OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:ea:d6:49:65:a3:e2
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(eth1): addr:fa:16:3e:89:97:59
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan23): addr:6e:c6:8a:aa:d5:c8
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(vlan20): addr:e2:f0:eb:20:60:31
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 5(vlan21): addr:de:0f:cd:c7:15:67
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:89:97:59
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
