OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:b6:83:25:3d:8e:29
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan21): addr:2e:bc:42:84:bf:be
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan20): addr:4a:85:e6:81:f7:0c
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(eth1): addr:fa:16:3e:f0:e6:02
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:f0:e6:02
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
