OFPST_PORT_DESC reply (xid=0x2):
 1(eth1): addr:fa:16:3e:89:22:a6
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan22): addr:02:1e:e7:7c:43:a4
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan20): addr:3e:50:06:02:c1:5e
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(vlan21): addr:46:8a:10:64:d3:97
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:89:22:a6
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
