OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:3a:1a:9c:d5:09:3e
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan21): addr:ca:33:0a:da:c6:7c
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan20): addr:5a:97:2c:48:93:c3
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(eth1): addr:fa:16:3e:eb:99:ab
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:eb:99:ab
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
