OFPST_PORT_DESC reply (xid=0x2):
 1(eth1): addr:fa:16:3e:a0:05:04
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan23): addr:76:80:5b:24:38:4b
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan21): addr:aa:48:7e:c6:85:18
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(vlan44): addr:46:14:22:b5:37:98
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 5(vlan20): addr:52:33:d3:9d:eb:2a
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 6(vlan22): addr:a2:cf:76:96:c2:ba
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 7(patch-provnet-b): addr:ae:9a:93:92:8e:03
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:a0:05:04
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
