OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:fa:4e:a1:e8:88:82
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan20): addr:06:39:21:54:64:03
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan21): addr:26:86:9b:5b:b5:59
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(eth1): addr:fa:16:3e:2f:be:23
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:2f:be:23
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
