OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:de:2b:fb:42:a4:65
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan21): addr:2a:54:04:b5:31:38
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan20): addr:aa:f4:66:8d:0e:d4
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(eth1): addr:fa:16:3e:50:0c:e3
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:50:0c:e3
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
