OFPST_PORT_DESC reply (xid=0x2):
 1(vlan21): addr:32:83:b6:49:01:fb
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan20): addr:22:3d:b3:0c:33:b0
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan23): addr:06:4d:38:85:81:84
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(vlan22): addr:32:ab:5d:9e:7a:f6
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 5(eth1): addr:fa:16:3e:cc:1c:bc
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 6(patch-provnet-3): addr:5a:c7:11:22:a4:ae
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ctlplane): addr:fa:16:3e:cc:1c:bc
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
