OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:52:38:ef:ed:5a:36
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan20): addr:a2:8d:52:d3:de:a6
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan21): addr:1e:f1:f2:fa:bb:81
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(eth1): addr:fa:16:3e:fc:d8:d2
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:fc:d8:d2
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
