OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:5e:04:41:c8:59:27
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan21): addr:f6:28:81:e6:c6:49
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan20): addr:0e:83:fb:33:9d:45
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(eth1): addr:fa:16:3e:a9:96:fb
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 6(patch-provnet-1): addr:3e:1e:eb:72:ea:43
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:a9:96:fb
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
