I am using the MViz example which uses CTP protocol. When i try to get the
network throughput by dividing the received packets by the sent ones. I
noticed that the received are more than the sent! (it has to be the same or
less than the sent packets)

I did intensive debugging and noticed that the duplication just occurred at
the root node when there will be a re-transmission by the last hop node. 

I have checked the CtpForwardingEngineP.nc, i found that the duplication
check just performed at the forwarders (cache and sending queues)!

Is this a bug? and if it is, how can we fix it? 

Please help  




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