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Making IP traffic engineering robust to intra- and inter-AS transient link failures

Amin, M, Ho, KH, Wang, N, Howarth, MP and Pavlou, G (2008) Making IP traffic engineering robust to intra- and inter-AS transient link failures In: IEEE Network Operations and Management Symposium, 2008-04-07 - 2008-04-11, Salvador, BRAZIL.

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Abstract

Intra- and inter-AS transient link failures are common in operational IP networks. Robust intra- and inter-AS Traffic Engineering (TE) schemes have been proposed to optimize network performance against transient link failures. The existing literature has focused solely on either intra- or inter-AS link failure. They have, however, neglected the interactions between robust intra- and inter-AS TE, specifically the impact of intra-AS link failure on inter-AS TE and vice versa. As a result, the overall network performance may not be truly robust to link failures if the interactions are neglected. This paper proposes a joint robust TE approach that takes the interactions into account for achieving good network performance under both normal state and any single intra- or inter-AS link failure. We propose a two-phase heuristic to solve the problem and compare its performance withfour alternative approaches that do not consider the interactions. Evaluation results reveal that our joint robust TE approach achieves higher robustness against intra- and inter-AS link failures than all the alternatives.

Item Type: Conference or Workshop Item (UNSPECIFIED)
Additional Information:

Copyright 2008 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.

Divisions: Faculty of Engineering and Physical Sciences > Electronic Engineering > Centre for Communication Systems Research
Depositing User: Melanie Hughes
Date Deposited: 16 Dec 2011 11:38
Last Modified: 23 Sep 2013 18:57
URI: http://epubs.surrey.ac.uk/id/eprint/60779

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