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International Journal of Communication Networks and Security

Abstract

Current Internet is a massive, distributed network which continues to grow in size as globalization takes major role in everyone’s life like e-commerce, social networking and related activities grow. The heterogeneous and largely unregulated structure of the Internet renders tasks such as optimized service provision, rate limiting certain classes of applications (e.g. peer-to-peer), provide bandwidth guarantee for certain applications, avoiding shared congestion in flows are increasingly challenging tasks. The problem is complicated by the fact that one cannot rely on the cooperation of individual servers and routers to aid in the collection of network traffic measurements vital for these tasks. Hence we go for network monitoring and inference methods based on packet probing in the network. This paper presents an analysis of different inference methods for network characteristics to deal with shared congestion, packet forwarding priority, network tomography and evaluates each methodology based on packet loss rate and delay variance.

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