OFPST_PORT_DESC reply (xid=0x2):
 1(vlan20): addr:da:d0:5e:52:d1:c9
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan21): addr:22:87:03:75:43:41
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan22): addr:62:5c:6d:c8:60:b3
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(eth1): addr:fa:16:3e:5c:0d:ac
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:5c:0d:ac
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
