OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:4e:32:d1:da:89:26
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan21): addr:4a:41:94:1f:3b:b7
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan20): addr:0a:97:67:2a:23:a3
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(eth1): addr:fa:16:3e:c1:db:a9
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:c1:db:a9
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
