OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:1e:33:4a:13:3f:85
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(eth1): addr:fa:16:3e:0c:99:e2
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan20): addr:e2:3a:53:df:35:bf
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(vlan21): addr:5a:f6:50:c7:b0:4b
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:0c:99:e2
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
