OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:9a:c8:9b:2a:60:b4
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(eth1): addr:fa:16:3e:1a:df:61
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan21): addr:ae:90:81:e8:9e:00
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(vlan20): addr:36:49:6a:0e:49:33
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:1a:df:61
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
