OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:96:37:d0:45:e3:a1
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan21): addr:e2:46:e0:3b:64:92
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan20): addr:e6:19:8c:53:53:25
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(eth1): addr:fa:16:3e:c0:38:a3
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:c0:38:a3
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
