OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:42:68:56:29:75:a3
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(eth1): addr:fa:16:3e:46:20:ea
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan23): addr:3a:53:1a:8a:3c:df
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(vlan20): addr:22:1f:4c:ff:88:a1
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 5(vlan21): addr:3e:37:67:3d:bc:e9
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:46:20:ea
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
