OFPST_PORT_DESC reply (xid=0x2):
 1(eth1): addr:fa:16:3e:18:dd:79
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan22): addr:7e:19:df:f6:a5:9a
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan23): addr:22:92:97:11:86:f7
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(vlan20): addr:72:e2:af:e7:11:68
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 5(vlan21): addr:1e:66:81:5e:49:66
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:18:dd:79
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
