OFPST_PORT_DESC reply (xid=0x2):
 1(vlan21): addr:f6:67:55:a7:66:54
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan20): addr:c6:78:b2:15:8d:6d
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan22): addr:3e:8d:29:aa:7c:66
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(eth1): addr:fa:16:3e:c2:36:90
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 5(vlan23): addr:86:10:44:47:0f:b9
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 6(patch-provnet-8): addr:06:cc:31:78:1e:b7
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ctlplane): addr:fa:16:3e:c2:36:90
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
