OFPST_PORT_DESC reply (xid=0x2):
 1(eth1): addr:fa:16:3e:96:61:92
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan22): addr:72:64:14:38:09:6b
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan21): addr:5a:94:88:81:ef:16
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(vlan23): addr:e2:06:77:e1:48:6b
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 5(vlan20): addr:5a:5c:2f:8e:85:01
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:96:61:92
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
