OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:4a:12:c4:66:8b:6a
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(eth1): addr:fa:16:3e:b5:b2:88
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan20): addr:5a:58:15:d2:e2:43
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(vlan21): addr:ea:37:fa:72:f1:92
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 5(patch-provnet-6): addr:0e:27:65:00:8e:5c
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:b5:b2:88
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
