OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:02:a7:6b:c9:1c:26
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan21): addr:de:46:9f:c5:22:2e
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan20): addr:4e:8e:14:50:59:a7
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(eth1): addr:fa:16:3e:96:3c:ac
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:96:3c:ac
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
