OFPST_PORT_DESC reply (xid=0x2):
 1(eth1): addr:fa:16:3e:5d:4e:0c
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan22): addr:c2:d2:cc:fd:c6:79
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan21): addr:1a:1f:96:7f:4e:e1
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(vlan23): addr:3a:89:31:5d:9a:dd
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 5(vlan20): addr:f2:38:25:24:29:3f
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:5d:4e:0c
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
