OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:f6:28:ae:68:d5:d6
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan21): addr:da:77:f5:a7:0f:81
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan20): addr:7a:43:af:7e:58:9e
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(eth1): addr:fa:16:3e:a8:e8:6e
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:a8:e8:6e
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
