A Comparison of TCP Behaviour at High Speeds Using ns-2 and Linux

Martin Bateman, Saleem Bhatti, Greg Bigwood, Devan Rehunathan, Colin Allison, Tristan Henderson and Dimitrios Miras

11th Communications and Networking Simulation Symposium (CNS 2008)
Ottawa, Canada, April 14-17 2008

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Summary

We use a simple dumbbell network configuration to evaluate the fairness (using Jain's Fairnes index) of five variations of highspeed TCP (BIC, CUBIC, highspeed, scalable, hamilton) against NewReno at 1 Gb/s and at various RTTs up to 400ms. We perform the evaluation using ns2 and a testbed, both running the same code (from Linux). We compare the results obtained from the simulation and the testbed.

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