OFPST_PORT_DESC reply (xid=0x2):
 1(eth1): addr:fa:16:3e:54:b4:56
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan22): addr:3a:4b:8b:56:2b:0d
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan21): addr:46:05:d5:2d:ea:44
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(vlan20): addr:b6:cb:b4:8a:b5:f4
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:54:b4:56
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
