OFPST_PORT_DESC reply (xid=0x2):
 1(vlan20): addr:fe:70:49:45:8f:77
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan21): addr:5e:1c:fe:9b:c8:48
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan22): addr:9e:15:c8:74:cf:9f
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(eth1): addr:fa:16:3e:70:7c:86
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:70:7c:86
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
