OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:72:89:19:c1:68:8f
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan21): addr:7e:5e:c0:55:4f:e4
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan20): addr:8e:c3:24:94:f7:75
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(eth1): addr:fa:16:3e:0d:b4:7f
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:0d:b4:7f
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
