OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:c6:44:f5:fb:15:4c
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(eth1): addr:fa:16:3e:6e:d1:97
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan20): addr:9e:6e:19:61:75:21
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(vlan21): addr:52:39:8c:72:7f:89
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 5(vlan23): addr:26:55:5c:bf:6d:46
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:6e:d1:97
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
