OFPST_PORT_DESC reply (xid=0x2):
 1(vlan23): addr:e2:55:c9:8b:41:44
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(eth1): addr:fa:16:3e:96:ae:07
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan22): addr:5e:92:be:e0:a6:3f
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(vlan20): addr:de:83:9b:2a:f5:9e
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 5(vlan21): addr:36:b4:ce:24:10:b4
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 6(patch-provnet-e): addr:56:e1:a5:52:52:f4
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ctlplane): addr:fa:16:3e:96:ae:07
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
