OFPST_PORT_DESC reply (xid=0x2):
 1(vlan20): addr:fe:f0:62:3e:ac:67
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan22): addr:9e:05:5c:8b:03:6d
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan21): addr:3a:86:4f:61:19:66
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(vlan23): addr:a6:34:e8:ba:45:e7
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 5(eth1): addr:fa:16:3e:ee:86:f9
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 6(patch-provnet-2): addr:9a:05:94:48:eb:50
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ctlplane): addr:fa:16:3e:ee:86:f9
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
