OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:de:39:2a:71:b4:6b
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(eth1): addr:fa:16:3e:63:24:c1
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan20): addr:9a:c0:3a:3c:fa:15
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(vlan21): addr:e2:3c:be:fe:46:e7
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 5(vlan23): addr:e2:ae:99:37:a4:4b
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:63:24:c1
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
