OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:e2:93:e5:8f:94:56
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(eth1): addr:fa:16:3e:7e:ca:de
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan21): addr:86:54:f6:9c:05:91
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(vlan20): addr:76:ab:8e:d2:25:db
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 5(vlan23): addr:2a:69:2b:6a:ca:f9
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:7e:ca:de
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
