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QoSPlan: A Measurement Based Quality of Service aware Network Planning Framework

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Abstract

In this article we present QoSPlan—a measurement based framework for preparing information relevant to Quality of Service (QoS)-aware IP network planning, which aims at reducing a core operational expenditure for the network operator. QoSPlan is designed to reduce the cost of deployment and maintenance of network monitoring systems. The process involves analysis of pre-existing accounting data to estimate a network-wide traffic matrix. Part of this estimation process relates to the generalization of QoS-related effective bandwidth coefficients taken from traffic analyzed on the network. We offer recommendations on how to appropriately realize QoSPlan to maximize its accuracy and effectiveness when applied to different network traffic scenarios. This is achieved through a thorough sensitivity analysis of the methods proposed using real traffic scenarios and indicative network topologies. We also provide an economic analysis of the deployment and maintenance costs associated with QoSPlan in comparison to a direct measurement approach, demonstrating cost savings of up to 60 % given different topology sizes.

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Notes

  1. We consider an end node device to be a source or sink of a traffic flow, i.e. the source or destination nodes attached to the network.

  2. We consider edge nodes to be the point of attachment of an end node device to the core network, i.e. the ingress or egress nodes of the network

  3. Each OPNET simulation model was build using existing OPNET network models. An IPFIX device and packet probe device was developed as an add-on to the OPNET router models. The implementations were validated within a number of test case scenarios, which demonstrated expected results

  4. We take the term collection module to mean a centralized location for the storage of accounting records collected from a set of metering devices

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Acknowledgments

This work has received support from Science Foundation Ireland via grant numbers 03/CE3/I405 (Autonomic Management of Communications Networks and Services) and 08/SRC/I1403 (Federated, Autonomic Management of End-to-End Communications Services) and the Irish Research Council for Science, Engineering and Technology, co-funded by Marie Curie Actions under FP7.

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  1. Telecommunications Software & Systems Group, Waterford Institute of Technology, Cork Road, Waterford, Ireland

    Alan Davy, Brendan Jennings & Dmitri Botvich

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  1. Alan Davy
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  2. Brendan Jennings
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  3. Dmitri Botvich
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Correspondence to Alan Davy.

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Neither the entire paper nor any part of its content has been published or has been accepted for publication elsewhere. It has not been submitted to any other journal.

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Davy, A., Jennings, B. & Botvich, D. QoSPlan: A Measurement Based Quality of Service aware Network Planning Framework. J Netw Syst Manage 21, 474–509 (2013). https://doi.org/10.1007/s10922-012-9243-3

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