OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:16:64:03:1d:b4:03
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan20): addr:ea:08:0b:97:28:db
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan21): addr:de:d3:7c:b4:20:d0
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(eth1): addr:fa:16:3e:65:36:ff
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:65:36:ff
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
