OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:0a:18:62:ed:38:91
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan21): addr:3e:81:5d:e3:3f:20
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan20): addr:2a:64:4d:9f:a7:59
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(eth1): addr:fa:16:3e:f6:a3:b9
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:f6:a3:b9
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
