OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:aa:3f:d3:b5:0b:f6
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan20): addr:72:6a:e1:00:62:65
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan21): addr:f2:49:62:ac:9c:c9
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(eth1): addr:fa:16:3e:07:45:f5
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:07:45:f5
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
