OFPST_PORT_DESC reply (xid=0x2):
 1(eth1): addr:fa:16:3e:6a:c6:cb
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan22): addr:82:dd:15:2f:e5:fb
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan20): addr:66:e9:e1:a2:76:23
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(vlan21): addr:7a:98:0f:6d:f5:1d
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:6a:c6:cb
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
