OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:52:29:3a:d2:2d:85
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan20): addr:8a:c4:fa:4e:be:92
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan21): addr:ea:f2:49:f8:c7:ae
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(eth1): addr:fa:16:3e:bf:af:3b
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:bf:af:3b
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
