OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:42:8a:92:5a:5e:df
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan21): addr:06:a6:b4:bf:e9:0d
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan20): addr:46:77:eb:87:1b:28
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(eth1): addr:fa:16:3e:30:a8:8f
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:30:a8:8f
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
