OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:6a:ff:0c:2f:3c:22
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan21): addr:ae:24:c3:9a:b1:2c
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan20): addr:9e:fb:4a:38:8a:4c
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(eth1): addr:fa:16:3e:90:13:34
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:90:13:34
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
