OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:4a:cc:6e:f7:89:e1
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan20): addr:aa:09:b7:b8:f2:5b
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan23): addr:8e:39:5d:8f:52:46
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(vlan21): addr:ba:2b:67:3e:42:99
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 5(eth1): addr:fa:16:3e:2a:f6:2c
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:2a:f6:2c
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
