OFPST_PORT_DESC reply (xid=0x2):
 1(eth1): addr:fa:16:3e:94:c4:d1
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan22): addr:36:22:55:9c:82:fe
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan23): addr:22:7f:ee:24:3a:42
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(vlan20): addr:82:2d:e1:9f:c0:b8
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 5(vlan21): addr:6a:26:b6:2d:83:55
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:94:c4:d1
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
