OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:c2:25:5e:f8:25:29
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan21): addr:c6:10:94:4e:de:e0
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan20): addr:3e:4a:2d:1e:d4:0d
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(eth1): addr:fa:16:3e:04:f7:cc
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:04:f7:cc
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
