OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:2e:fd:45:4e:77:58
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan21): addr:7e:1f:1f:27:1b:b6
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan20): addr:9e:4c:14:c2:49:a6
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(eth1): addr:fa:16:3e:eb:4e:da
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:eb:4e:da
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
