OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:be:10:cc:4a:77:d6
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan20): addr:fa:c4:27:e1:06:34
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan21): addr:12:fc:f1:07:aa:0f
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(eth1): addr:fa:16:3e:39:c0:94
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:39:c0:94
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
