OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:72:0f:8c:68:a0:71
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan21): addr:0e:8c:f1:7a:22:b6
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan20): addr:5a:07:29:53:3a:88
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(eth1): addr:fa:16:3e:af:41:93
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:af:41:93
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
