OFPST_PORT_DESC reply (xid=0x2):
 1(vlan20): addr:e6:9c:45:71:5c:9a
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan23): addr:b2:3c:42:f1:39:2a
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan22): addr:72:f1:eb:61:be:c9
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(eth1): addr:fa:16:3e:2c:e0:d2
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 5(vlan21): addr:52:71:e5:25:7a:99
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 6(patch-provnet-f): addr:0a:dd:7a:ff:e4:43
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ctlplane): addr:fa:16:3e:2c:e0:d2
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
