OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:ca:1a:9e:09:1d:01
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan21): addr:ae:d3:6b:e7:54:14
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan20): addr:fe:a7:cb:a8:2c:db
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(eth1): addr:fa:16:3e:6a:eb:dd
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:6a:eb:dd
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
