OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:36:6f:b9:74:db:03
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(eth1): addr:fa:16:3e:de:85:7a
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan20): addr:6a:d3:17:ff:dd:48
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(vlan21): addr:ee:de:1e:21:8d:64
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:de:85:7a
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
