OFPST_PORT_DESC reply (xid=0x2):
 1(vlan20): addr:02:0d:95:15:4d:e2
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan23): addr:9e:66:8b:a5:64:df
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan22): addr:76:fd:27:5e:10:8f
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(eth1): addr:fa:16:3e:f9:f9:59
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 5(vlan21): addr:ee:e3:13:d0:ce:d2
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 6(patch-provnet-4): addr:b2:45:e3:19:39:be
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ctlplane): addr:fa:16:3e:f9:f9:59
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
