OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:6e:6e:de:0d:7e:d2
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan20): addr:36:9a:c0:7c:41:fd
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan21): addr:6e:6f:43:27:0c:8a
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(eth1): addr:fa:16:3e:d1:e2:3d
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:d1:e2:3d
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
