OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:aa:29:b2:3c:e6:d2
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan21): addr:96:62:5b:54:7b:d8
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan20): addr:52:09:a0:b8:6e:0f
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(vlan23): addr:5a:4d:a5:f1:e4:f5
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 5(eth1): addr:fa:16:3e:83:23:5f
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:83:23:5f
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
