OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:fe:35:03:76:a7:79
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(eth1): addr:fa:16:3e:74:9b:07
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan20): addr:0a:ee:b6:71:9b:15
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(vlan21): addr:66:aa:66:05:d7:b6
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 6(patch-provnet-9): addr:a6:f6:4b:c4:e8:36
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:74:9b:07
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
