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Convergence may or may not be the issues, but we need
to simulate real TCP traffic as opposed to traffic from traces.
Our
objective in these simulations is show how TCP flow control mechanism interacts
with the competing approaches of RPR mac fairness flow control mechanism.
Traces will dump traffic on the RPR mac regardless of what RPR mac flow
control does. On the other hand TCP sources may never come out of
their slow start to utilize the available bandwidth from
RPR.
Our
objective is to make sure we design RPR mac which doesn't interfere with upper
level flow control mechanisms like TCP or any other protocol that implements
flow control.
Thus
analysis based real TCP sources is must at some point for us to compare
solutions.
For a
common reference, we can decide the number of sources and the type of TCP (any
of the RENO, TAHOE, VEGAS TCP implementations).
-Sanjay K. Agrawal
Luminous Networks
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