OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:9a:c2:7d:9c:94:08
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(eth1): addr:fa:16:3e:8f:28:ba
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan20): addr:82:02:50:c2:35:54
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(vlan21): addr:be:4d:1a:ab:25:a7
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:8f:28:ba
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
