OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:ce:cb:f6:ba:a7:48
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan21): addr:ce:e3:a0:ec:6f:4e
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan20): addr:9a:d3:a7:0d:48:31
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(eth1): addr:fa:16:3e:30:40:e3
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:30:40:e3
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
