OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:ae:36:2f:14:13:dc
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan21): addr:06:78:fd:b0:fd:35
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan20): addr:be:0d:79:27:8a:a2
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(eth1): addr:fa:16:3e:5a:36:9a
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:5a:36:9a
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
