Home // ICNS 2011, The Seventh International Conference on Networking and Services // View article
Authors:
Tarik Čaršimamović
Enio Kaljić
Mesud Hadžialić
Keywords: Adaptation layer; algorithm; bandwidth allocation; blocking frequency; dynamic adaptation structure; development methodology; fairness; LSP; mpls; NGN; proportional-priority coefficient; RSVP
Abstract:
In this paper, we propose an algorithm for adaptation layer in order to improve fairness in bandwidth allocation among different traffic classes in IP/MPLS networks under heavy traffic load. We propose a definition of the blocking frequency of traffic flows at the entry of autonomous network domain and proportional-priority coefficient per traffic class and use them as the input parameters of the adaptation mechanism. In order to evaluate the validity of the proposed algorithm, we need proper simulation tools and for that purposes we extend OPNET Modeler 14.5 with the modules for adaptation process. We also propose a development methodology for the design of modules for adaptation process within network simulators. The simulations results give us the proof of our hypothesis that with a proper adaptation layer we can improve the fairness of bandwidth allocation among different traffic classes under heavy network load and at the same time keep the required QoS conditions in the preferred boundaries.
Pages: 124 to 130
Copyright: Copyright (c) IARIA, 2011
Publication date: May 22, 2011
Published in: conference
ISSN: 2308-4006
ISBN: 978-1-61208-133-5
Location: Venice/Mestre, Italy
Dates: from May 22, 2011 to May 27, 2011