SIMROT: A Scalable Inter-domain Routing Toolbox Ahmed Elmokash Amund Kvalbein Simula Research Laboratory Simula Research Laboratory Constantine Dovrolis Georgia Institute of Technology ABSTRACT BGP plays a crucial role in the global communications infrastructure, and there is a strong need for tools that can be used for analyzing its performance under di erent scenarios. The size and complexity of the inter-domain routing system often makes simulation the only viable method for such studies. This work addresses the lack of a comprehensive toolbox to simulate BGP. It proposes a exible topology generator that produces AS-level graphs which are annotated with business relationships. The second component of the toolbox is a light-weight BGP simulator that is capable of capturing routing dynamics, while scaling to network sizes of thousands of nodes. We employ our framework to investigate a set of what-if questions concerning the impact of di erent topology parameters on BGP dynamics. This investigation shows how our proposed framework can help in gaining important insights on inter-domain routing dynamics. 1. INTRODUCTION The inter-domain routing system is arguably the largest deployed distributed system in the world, consisting of over 37000 Autonomous Systems (ASes) and 354k routable network pre xes [4]. This
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SIMROT: a scalable inter-domain routing toolbox
Elmokashfi, Ahmed; Kvalbein, Amund; Dovrolis, Constantine
Follow ACM SIGMETRICS Performance Evaluation Review
, Volume 39 (2)
Association for Computing Machinery – Sep 15, 2011
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