OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:ce:28:64:1d:61:9c
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan20): addr:7a:60:f3:49:f3:ed
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan21): addr:7a:5c:ff:94:e7:87
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(eth1): addr:fa:16:3e:01:33:27
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:01:33:27
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
