OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:b2:d7:e0:4a:9a:87
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan20): addr:5e:5d:08:a7:62:1e
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan21): addr:96:cd:65:f9:5a:ae
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(eth1): addr:fa:16:3e:1e:57:82
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:1e:57:82
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
