OFPST_PORT_DESC reply (xid=0x2):
 1(eth1): addr:fa:16:3e:85:61:cc
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan22): addr:d2:37:15:cb:87:5d
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan20): addr:8e:51:1a:22:10:1c
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(vlan21): addr:be:eb:cd:9c:40:80
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:85:61:cc
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
