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Joint Optimization of Intra- and Inter-Autonomous System Traffic Engineering

Ho, KH, Pavlou, George, Wang, Ning and Howarth, Michael (2009) Joint Optimization of Intra- and Inter-Autonomous System Traffic Engineering IEEE Transactions on Network and Service Management (TNSM), 6 (2). pp. 64-79.

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Traffic Engineering (TE) involves network configuration in order to achieve optimal IP network performance. The existing literature considers intra- and inter-AS (Autonomous System) TE independently. However, if these two aspects are considered separately, the overall network performance may not be truly optimized. This is due to the interaction between intra- and inter-AS TE, where a good solution of inter-AS TE may not be good for intra-AS TE. To remedy this situation, we propose a joint optimization of intra- and inter-AS TE in order to improve the overall network performance by simultaneously finding the best egress points for inter-AS traffic and the best routing scheme for intra-AS traffic. Three strategies are presented to attack the problem, sequential, nested and integrated optimization. Our evaluation shows that, in comparison to sequential and nested optimization, integrated optimization can significantly improve overall network performance by being able to accommodate approximately 30%-60% more traffic demand.

Item Type: Article
Divisions : Faculty of Engineering and Physical Sciences > Electronic Engineering > Centre for Communication Systems Research
Authors :
Date : June 2009
Identification Number : 10.1109/TNSM.2009.090601
Additional Information : © 2009 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
Depositing User : Ning Wang
Date Deposited : 11 Feb 2014 17:41
Last Modified : 11 Feb 2014 17:41

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