OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:7a:b5:41:e6:f4:ef
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(eth1): addr:fa:16:3e:c2:cd:d1
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan21): addr:76:57:ac:cd:82:44
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(vlan20): addr:42:ba:d0:54:14:92
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 5(vlan23): addr:f2:3d:00:18:d0:9e
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:c2:cd:d1
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
