OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:aa:e3:e7:90:f8:65
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan21): addr:62:94:f3:3d:eb:81
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan20): addr:6e:9a:86:88:e0:66
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(eth1): addr:fa:16:3e:60:a4:d7
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:60:a4:d7
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
