OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:f2:9b:55:ad:1e:1a
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan21): addr:76:1a:2a:ec:93:75
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan20): addr:ea:e5:f7:d1:2f:3f
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(eth1): addr:fa:16:3e:11:41:d8
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:11:41:d8
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
