OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:b6:cb:03:17:90:b3
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan21): addr:7e:52:94:28:98:b9
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan23): addr:7e:e6:7b:b0:22:7d
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(vlan20): addr:da:8d:52:c8:ca:99
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 5(eth1): addr:fa:16:3e:51:2f:f8
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:51:2f:f8
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
