OFPST_PORT_DESC reply (xid=0x2):
 1(vlan23): addr:d2:d2:d9:d4:64:79
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan22): addr:7a:01:26:7d:a9:d1
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan20): addr:e2:ed:c9:97:44:51
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(vlan21): addr:3e:af:1a:e5:80:2f
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 5(eth1): addr:fa:16:3e:3c:56:15
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 6(patch-provnet-4): addr:06:b3:7e:3b:88:94
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ctlplane): addr:fa:16:3e:3c:56:15
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
