OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:ca:e2:c4:00:a6:bb
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan21): addr:52:c6:c6:37:96:e7
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan20): addr:a2:94:f2:37:6e:0d
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(vlan23): addr:f6:0b:ef:e0:0e:12
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 5(eth1): addr:fa:16:3e:58:c5:f9
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:58:c5:f9
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
