OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:f6:4b:a6:30:a5:19
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan21): addr:aa:e6:e1:52:83:94
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan23): addr:e6:b9:ef:33:a9:e6
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(vlan20): addr:4e:df:b4:85:44:43
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 5(eth1): addr:fa:16:3e:ee:bc:66
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:ee:bc:66
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
