OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:de:ba:f7:d5:0c:84
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan21): addr:0a:eb:bb:80:a6:1c
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan20): addr:6e:40:1f:5d:82:cc
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(eth1): addr:fa:16:3e:67:4f:89
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:67:4f:89
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
