OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:12:2d:7d:e6:83:b9
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan21): addr:5a:24:42:80:25:ab
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan20): addr:2a:0d:52:cf:99:92
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(eth1): addr:fa:16:3e:fa:61:ea
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:fa:61:ea
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
