OFPST_PORT_DESC reply (xid=0x2):
 1(vlan20): addr:f6:ec:2c:4d:63:08
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan22): addr:8a:f1:9c:52:98:5d
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan21): addr:9e:c7:ca:01:ab:94
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(vlan23): addr:8e:1c:e6:bd:5e:74
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 5(eth1): addr:fa:16:3e:41:e6:bc
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:41:e6:bc
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
