Traffic Engineering with Rerouting in DiffServ MPLS Networks

Ang, A.F. and Phang, K.K. and Ling, T.C. (2012) Traffic Engineering with Rerouting in DiffServ MPLS Networks. Malaysian Journal of Computer Science, 25 (3). pp. 122-135.

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Abstract

Traffic Engineering with Rerouting in DiffServ MPLS Networks K.K. Phang, T.C. Ling, T.F. Ang Faculty of Computer Science and Information Technology, University of Malaya, Malaysia Email: { kkphang, tchaw, angtf}@um.edu.my; ABSTRACT An important aspect of traffic engineering is the re-optimization of network resources. In this process, traffic over a congested path is rerouted to a new path to improve efficiency in network resource utilization. The aggregation nature of DiffServ MPLS networks often gives rise to long-lived flows within the network. A rerouting mechanism that supports the tearing-down of old connections and the setting-up of new connections is essential. In the absence of a rerouting mechanism, long-lived flows will be tied to inefficient paths for an extended period of time. A simple non-shortest path rerouting algorithm, namely SimpleReroute (SRR), is proposed. The simulation results indicate that SRR exhibits a lower packet loss ratio. SRR is able to reduce packet loss up to about 15 orders of magnitude, i.e. reducing the packet loss percentage from as high as 14.9% to 1% when the network is heavily congested.

Item Type: Article
Uncontrolled Keywords: Routing, Rerouting, MPLS, DiffServ, QoS
Subjects: T Technology
Depositing User: MR. ADNAN YAHYA
Date Deposited: 06 Apr 2012
Last Modified: 11 Oct 2012
URI: http://repository.um.edu.my/id/eprint/19692

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