OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:16:e4:42:fc:0c:46
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan21): addr:9e:d2:38:c2:f7:83
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan20): addr:ca:4d:f5:d6:08:1d
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(eth1): addr:fa:16:3e:c5:9c:2b
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:c5:9c:2b
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
