OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:d6:30:7d:28:01:c8
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan21): addr:da:d5:6d:4d:db:b4
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan20): addr:66:66:01:e8:3a:00
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(eth1): addr:fa:16:3e:1e:72:b6
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 5(patch-provnet-5): addr:fe:88:24:a2:22:5d
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:1e:72:b6
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
