OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:9a:50:c2:94:b2:54
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan21): addr:e2:f7:dc:5f:f5:be
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan20): addr:ae:37:c3:c2:38:06
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(eth1): addr:fa:16:3e:81:70:ba
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:81:70:ba
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
