OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:76:87:23:d8:44:98
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan21): addr:a2:ec:18:94:44:42
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan20): addr:ee:ea:29:c1:20:b3
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(eth1): addr:fa:16:3e:48:83:03
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 5(vlan23): addr:9a:aa:fd:29:b8:f9
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:48:83:03
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
