OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:b6:af:55:4f:b7:d8
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan21): addr:5a:ba:c6:f4:37:1f
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan20): addr:36:de:57:09:c5:ac
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(eth1): addr:fa:16:3e:3f:cb:b3
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:3f:cb:b3
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
