OFPST_PORT_DESC reply (xid=0x2):
 1(eth1): addr:fa:16:3e:84:d9:d2
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan22): addr:fa:7a:fe:1b:87:96
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan20): addr:62:aa:1f:17:8c:8f
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(vlan21): addr:52:51:a2:d7:53:88
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:84:d9:d2
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
