OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:4e:1b:a8:a6:e4:6c
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan20): addr:9e:59:b4:e4:03:1a
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan21): addr:8e:0f:a3:26:3a:07
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(eth1): addr:fa:16:3e:95:66:64
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:95:66:64
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
