OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:be:bb:34:3c:6a:65
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan20): addr:86:df:c7:51:17:43
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan21): addr:4e:ef:12:f6:be:71
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(eth1): addr:fa:16:3e:07:f2:25
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:07:f2:25
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
