OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:86:22:08:61:67:37
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan20): addr:c2:5b:d5:0d:87:a1
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan21): addr:6e:02:c4:1e:89:6a
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(vlan23): addr:1e:0c:d2:60:f3:cf
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 5(eth1): addr:fa:16:3e:49:e8:1f
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:49:e8:1f
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
