OFPST_PORT_DESC reply (xid=0x2):
 1(vlan21): addr:2a:60:14:50:91:24
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan20): addr:16:42:00:de:30:e5
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan22): addr:c2:62:14:46:b8:95
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 5(eth1): addr:fa:16:3e:75:61:d5
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:75:61:d5
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
