OFPST_PORT_DESC reply (xid=0x2):
 1(vlan20): addr:de:1c:74:fd:aa:51
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan21): addr:c6:a8:9e:21:c7:b2
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(eth1): addr:fa:16:3e:5a:33:34
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(vlan22): addr:66:2b:62:0f:5d:50
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:5a:33:34
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
