OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:8e:1e:dc:40:1a:33
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan21): addr:5a:63:fc:81:91:71
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan20): addr:e6:ac:c0:71:28:6e
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(eth1): addr:fa:16:3e:ef:54:e2
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:ef:54:e2
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
