OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:8a:bb:52:1b:8c:40
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan21): addr:86:49:5a:78:6f:82
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan23): addr:22:32:c7:64:87:3c
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(vlan20): addr:de:41:e1:fa:1c:5d
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 5(eth1): addr:fa:16:3e:e3:8b:f4
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:e3:8b:f4
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
