OFPST_PORT_DESC reply (xid=0x2):
 1(eth1): addr:fa:16:3e:67:83:8d
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan22): addr:5e:55:90:55:c4:e3
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan21): addr:b2:bb:72:8c:d6:de
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(vlan20): addr:d6:85:ef:4f:ed:53
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 5(vlan23): addr:8e:5e:0e:dd:24:a2
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:67:83:8d
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
