OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:ea:8e:b7:66:85:0a
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan20): addr:ba:32:cb:4b:12:10
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan21): addr:82:58:bd:20:55:6d
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(eth1): addr:fa:16:3e:8a:e4:27
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:8a:e4:27
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
