OFPST_PORT_DESC reply (xid=0x2):
 1(vlan21): addr:2e:a6:75:91:80:8b
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan23): addr:9a:62:b9:56:fe:d3
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(eth1): addr:fa:16:3e:0b:50:81
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(vlan20): addr:ea:11:e1:89:1e:58
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 5(vlan22): addr:66:91:d6:29:56:42
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 6(patch-provnet-e): addr:52:8a:7c:fa:c8:26
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ctlplane): addr:fa:16:3e:0b:50:81
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
