OFPST_PORT_DESC reply (xid=0x2):
 1(eth1): addr:fa:16:3e:e2:e5:ea
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan21): addr:c6:ed:12:38:04:66
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan20): addr:5a:a7:7e:c1:fe:87
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(vlan22): addr:26:57:a8:9d:9c:47
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 5(vlan44): addr:9a:df:57:5d:f6:bf
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 6(vlan23): addr:22:53:62:35:f6:bc
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 7(patch-provnet-d): addr:c6:e1:f5:33:43:c2
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:e2:e5:ea
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
