OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:4e:d5:fc:1f:c5:68
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan20): addr:c6:cc:10:3f:cb:8b
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan21): addr:ba:a3:1a:2e:d1:c3
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(eth1): addr:fa:16:3e:91:aa:a6
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:91:aa:a6
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
