Difficulties in Simulating the Internet

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Difficulties in Simulating the Internet (2001)

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by Sally Floyd , Vern Paxson

Venue:	IEEE/ACM Transactions on Networking
Citations:	341 - 8 self

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@ARTICLE{Floyd01difficultiesin,
    author = {Sally Floyd and Vern Paxson},
    title = {Difficulties in Simulating the Internet},
    journal = {IEEE/ACM Transactions on Networking},
    year = {2001},
    volume = {9},
    pages = {392--403}
}

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Abstract

Simulating how the global Internet behaves is an immensely challenging undertaking because of the network's great heterogeneity and rapid change. The heterogeneity ranges from the individual links that carry the network's traffic, to the protocols that interoperate over the links, to the "mix" of different applications used at a site, to the levels of congestion seen on different links. We discuss two key strategies for developing meaningful simulations in the face of these difficulties: searching for invariants, and judiciously exploring the simulation parameter space. We finish with a brief look at a collaborative effort within the research community to develop a common network simulator. 1 Introduction Due to the network's complexity, simulation plays a vital role in attempting to characterize both the behavior of the current Internet and the possible effects of proposed changes to its operation. Yet modeling and simulating the Internet is not an easy task. The goal of this paper ...

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