OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:fa:5e:1e:fe:2b:77
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(eth1): addr:fa:16:3e:fa:2e:f6
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan20): addr:76:7c:1e:02:d2:1a
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(vlan21): addr:82:ad:59:2e:00:11
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 5(vlan23): addr:c2:1c:5d:ef:5b:4b
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:fa:2e:f6
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
