OFPST_PORT_DESC reply (xid=0x2):
 1(eth1): addr:fa:16:3e:6a:91:fa
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan21): addr:16:03:5b:dd:9a:9e
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan20): addr:32:97:2e:b9:3e:e7
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(vlan23): addr:92:b5:1e:47:00:28
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 5(vlan44): addr:76:5b:aa:88:0a:33
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 6(vlan22): addr:8a:71:2d:74:af:77
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 7(patch-provnet-d): addr:66:4b:8d:b4:14:77
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:6a:91:fa
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
