OFPST_PORT_DESC reply (xid=0x2):
 1(eth1): addr:fa:16:3e:ef:0e:5f
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan23): addr:ea:61:a5:e1:8b:a0
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan44): addr:86:79:e7:5f:ea:c1
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(vlan22): addr:02:56:2b:9b:59:14
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 5(vlan21): addr:f6:f1:39:af:75:33
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 6(vlan20): addr:52:92:e3:6c:99:28
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:ef:0e:5f
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
