OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:a2:5c:b4:77:c3:ef
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan21): addr:e6:fb:0b:48:66:b0
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan20): addr:12:8a:d8:bc:25:33
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(eth1): addr:fa:16:3e:3c:2c:5e
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 5(patch-provnet-3): addr:9a:11:92:ef:0a:ee
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:3c:2c:5e
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
