OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:76:43:45:34:ad:5a
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan21): addr:ea:52:a3:da:3d:83
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan20): addr:de:90:72:20:3a:7f
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(eth1): addr:fa:16:3e:28:14:0c
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:28:14:0c
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
