OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:26:a4:10:a3:f2:89
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan21): addr:96:7d:b3:0d:b6:c9
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan20): addr:02:13:b3:21:4d:4c
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(eth1): addr:fa:16:3e:4c:43:08
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:4c:43:08
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
