OFPST_PORT_DESC reply (xid=0x2):
 1(vlan20): addr:0e:18:35:3f:f7:df
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan21): addr:46:80:7d:b2:e3:ae
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan22): addr:9a:c3:23:55:da:cf
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(eth1): addr:fa:16:3e:71:47:fa
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:71:47:fa
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
