OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:96:b9:5f:35:bf:b9
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan21): addr:9a:d6:23:8b:37:a2
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan20): addr:9e:eb:24:04:08:ff
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(eth1): addr:fa:16:3e:8c:40:52
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:8c:40:52
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
