OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:02:b5:4a:6e:4c:e4
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan20): addr:3a:71:20:a4:46:6a
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan21): addr:1e:ed:4c:ed:21:1f
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(eth1): addr:fa:16:3e:3b:ed:57
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:3b:ed:57
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
