OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:5e:18:34:75:ed:32
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan20): addr:26:4d:f8:95:9d:ed
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan21): addr:02:f1:db:44:ac:40
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(eth1): addr:fa:16:3e:a8:c8:15
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:a8:c8:15
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
