OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:46:81:64:ad:41:fd
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan20): addr:6a:51:76:34:37:54
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan21): addr:9a:72:e6:fd:1b:75
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(eth1): addr:fa:16:3e:1f:30:c7
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 5(patch-provnet-8): addr:3a:8a:7d:9c:24:28
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:1f:30:c7
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
