OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:16:24:05:90:7d:b7
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan21): addr:c6:a6:aa:e1:16:be
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan23): addr:7a:1d:8c:a1:82:ae
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(vlan20): addr:92:fa:f3:f2:4a:c0
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 5(eth1): addr:fa:16:3e:1e:24:81
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 6(patch-provnet-3): addr:6a:de:ef:9a:f8:11
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ctlplane): addr:fa:16:3e:1e:24:81
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
