OFPST_PORT_DESC reply (xid=0x2):
 1(eth1): addr:fa:16:3e:7a:7c:e1
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan23): addr:8e:5d:67:88:92:7c
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan21): addr:22:cb:09:04:2d:35
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(vlan44): addr:36:9c:ed:07:d7:bd
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 5(vlan20): addr:f6:3c:ec:a6:d3:36
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 6(vlan22): addr:6e:26:63:c9:85:8f
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 7(patch-provnet-8): addr:62:17:45:93:76:b9
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:7a:7c:e1
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
