OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:c2:8d:db:cc:81:23
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan20): addr:1a:24:60:fc:d9:54
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan21): addr:ea:a6:d8:15:16:35
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(vlan23): addr:e2:2d:f2:6d:a1:aa
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 5(eth1): addr:fa:16:3e:c5:fd:41
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:c5:fd:41
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
