OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:16:15:e3:1b:14:26
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan21): addr:fe:19:85:55:50:bf
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan20): addr:7e:d7:6e:01:32:dc
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(vlan23): addr:1e:14:1a:4e:c6:cc
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 5(eth1): addr:fa:16:3e:d3:2c:2c
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:d3:2c:2c
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
