OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:3e:9c:b9:0b:64:9d
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan21): addr:be:31:9d:52:25:c6
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan20): addr:62:81:f6:f2:b8:66
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(eth1): addr:fa:16:3e:dc:3d:b1
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:dc:3d:b1
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
