OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:e6:d8:6f:67:32:3f
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan21): addr:12:37:24:90:e0:fd
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan23): addr:be:cf:38:0d:4d:64
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(vlan20): addr:c6:2a:77:75:25:7e
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 5(eth1): addr:fa:16:3e:7c:3d:7a
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:7c:3d:7a
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
