OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:f6:26:20:cf:65:1a
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan20): addr:be:1b:f7:db:a7:a6
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan21): addr:56:7e:14:18:c5:7c
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(eth1): addr:fa:16:3e:7f:1c:cb
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:7f:1c:cb
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
