OFPST_PORT_DESC reply (xid=0x2):
 1(vlan20): addr:6a:1a:bd:9d:38:76
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(eth1): addr:fa:16:3e:3e:d1:ec
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan21): addr:9a:80:c4:e1:f8:ea
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(vlan23): addr:96:0b:00:87:f7:39
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 5(vlan22): addr:0e:2e:33:4f:55:39
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 6(patch-provnet-8): addr:5a:75:19:e9:e3:86
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ctlplane): addr:fa:16:3e:3e:d1:ec
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
