OFPST_PORT_DESC reply (xid=0x2):
 1(vlan21): addr:ea:d6:6e:f8:ab:97
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan22): addr:ce:46:01:5a:51:42
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan20): addr:72:3f:64:8e:05:d6
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(eth1): addr:fa:16:3e:44:d2:df
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 5(vlan23): addr:1a:ae:4f:ad:28:27
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 6(patch-provnet-c): addr:66:55:63:0b:e3:55
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ctlplane): addr:fa:16:3e:44:d2:df
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
