OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:de:d3:2f:a0:31:8a
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(eth1): addr:fa:16:3e:5c:9b:15
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan20): addr:ee:58:99:d5:58:68
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(vlan21): addr:f2:e6:22:be:de:da
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:5c:9b:15
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
