OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:8e:38:24:72:ab:e1
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(eth1): addr:fa:16:3e:20:d1:57
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan21): addr:82:08:67:f0:87:1e
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(vlan20): addr:1e:df:f4:cf:7a:b0
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 5(vlan23): addr:52:3d:2e:2a:d3:ea
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:20:d1:57
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
