OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:76:f6:4f:c8:9c:cd
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan20): addr:4a:69:52:76:95:76
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan21): addr:7e:04:06:a0:3e:38
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(eth1): addr:fa:16:3e:f3:7e:6f
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 6(patch-provnet-1): addr:3a:cb:48:6e:6e:c5
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:f3:7e:6f
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
