OFPST_PORT_DESC reply (xid=0x2):
 1(eth1): addr:fa:16:3e:84:23:1b
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan22): addr:3a:d4:54:f2:5f:9b
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan21): addr:c6:72:2f:8d:eb:41
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(vlan20): addr:3e:a2:6d:31:28:aa
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 6(patch-provnet-b): addr:be:a2:17:b5:9c:41
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:84:23:1b
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
