Hi all,

  I would like to do modification on existing TCP-reno inside NS2. Such that
TCP can know the current transmission rate. E.G.:

    >NODE1 -------> NODE2  start transmission at 3 minutes ago, currently
had 20Mbytes transfered.

    >When I do a function call $TCP return_size

    >TCP layer return: "Node1 to Node2 20Mbytes"

  It is the step stone to modification on TCP layer for developing my
project, *not generating graphs from trace file after simulation :)
  Appreciate for you guys to give me any advice.

Regards,
  Scottie

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