OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:be:3c:de:d9:a7:fe
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan21): addr:fa:d0:78:9b:37:4d
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan20): addr:4a:0a:61:61:b2:5a
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(eth1): addr:fa:16:3e:96:27:5c
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:96:27:5c
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
