OFPST_PORT_DESC reply (xid=0x2):
 1(vlan20): addr:9e:cc:b4:43:58:d8
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan21): addr:f6:db:90:64:52:4f
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan22): addr:72:c1:3b:aa:0c:c1
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(eth1): addr:fa:16:3e:10:21:05
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:10:21:05
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
