OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:1a:17:09:3e:c6:7c
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(eth1): addr:fa:16:3e:2d:0e:80
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan20): addr:ca:66:4d:87:e5:f6
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(vlan21): addr:96:1c:c9:54:80:52
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:2d:0e:80
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
