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2010
IEEE

TCP Testing: How Well Does ns2 Match Reality?

8 years 6 months ago
TCP Testing: How Well Does ns2 Match Reality?
New transport protocols continue to appear as alternatives to the Transmission Control Protocol (TCP). Many of these are are designed to address TCP's inefficiency in operating over paths with a high bandwidth-delay product (BDP). To test these new protocols, especially comparatively, and to understand their interactions, extensions to the ns2 simulator allow real code from the linux kernel to be used within the ns2 simulations. However, how does the performance of such configurations compare to test-bed experiments of the same configuration? Although, anecdotally, there are often comments within the research community about such issues, there are no studies that quantify the differences for a specific protocol suite. Using a simple testbed, we assess four different transport protocols in a comparative study to examine how well ns2 matches reality. Our tests are all conducted at 100Mb/s over a wide range of delay and router buffer conditions: end-to-end delays from 25ms to 400ms, ...
Martin Bateman, Saleem N. Bhatti
Added 28 Feb 2011
Updated 28 Feb 2011
Type Journal
Year 2010
Where AINA
Authors Martin Bateman, Saleem N. Bhatti
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