OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:9e:bd:5a:ff:67:b4
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan21): addr:82:2f:9d:92:bb:06
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan20): addr:1a:f0:64:cd:9c:d1
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(eth1): addr:fa:16:3e:a2:3c:49
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:a2:3c:49
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
