OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:36:80:0a:f2:66:9b
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan20): addr:1a:bc:81:b3:ed:01
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan21): addr:5a:e7:01:ff:b7:a1
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(eth1): addr:fa:16:3e:66:8a:fb
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:66:8a:fb
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
