OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:c2:2a:a0:b9:1e:3d
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(eth1): addr:fa:16:3e:90:01:c5
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan20): addr:ae:eb:10:30:fd:5d
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(vlan21): addr:4a:65:1a:d4:84:60
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 6(patch-provnet-8): addr:d6:f4:b3:0c:a3:95
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:90:01:c5
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
