OFPST_PORT_DESC reply (xid=0x2):
 1(eth1): addr:fa:16:3e:cb:d2:47
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan22): addr:0e:f6:82:60:70:3b
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan21): addr:26:43:c8:e2:1f:e5
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(vlan20): addr:86:2f:ae:74:d6:58
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:cb:d2:47
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
