OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:26:26:9e:1f:be:e7
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan21): addr:de:b1:54:83:1e:21
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan20): addr:b2:98:51:b6:46:a4
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(eth1): addr:fa:16:3e:f0:f5:2e
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 5(patch-provnet-6): addr:16:6f:39:49:1b:32
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:f0:f5:2e
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
