OFPST_PORT_DESC reply (xid=0x2):
 1(eth1): addr:fa:16:3e:03:d5:dc
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan22): addr:b6:c4:4c:d5:4f:1a
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan21): addr:3a:d2:d7:dc:20:b4
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(vlan20): addr:0a:d5:aa:8a:58:7f
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 5(patch-provnet-2): addr:ee:06:f3:21:1b:69
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:03:d5:dc
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
