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Traffic engineering and routing in survivable multi-service networks

Research output: Chapter in Book/Report/Conference proceedingConference contribution

This paper presents a new framework for Traffic Engineering (TE) of primary and backup paths and routing of Quality of Service (QoS) and Best-Effort (BE) flows in multiservice backbone networks capable of surviving against single or multiple node and/or link failure(s). The aforementioned framework involves an off-line and an on-line phase. In the off-line phase either a method based on an Integer Linear Programming (ILP) TE problem or a method based on a heuristic TE algorithm provides the primary and the backup routes (where required) for the QoS-guaranteed flows and the routes for the BE flows. In the on-line phase the QoS and BE flows are routed based on the outputs of the off-line phase. In the case that one or more primary paths fail the corresponding backup paths are used for restoration. However, if one or more backup paths also fail or a backup path is not defined dynamic restoration is applied. Test results regarding the two off-line TE methods are presented.

Original languageEnglish
Title of host publicationInternational Zurich Seminar on Communications, 2004, Zurich, Switzerland. 2004
PublisherIEEE
Pages48-51
Number of pages4
ISBN (Print)078938329X
DOIs
Publication statusPublished - 24 Aug 2004
Event2004 International Zurich Seminar on Communications: Access - Transmission -Networking - Zurich, Switzerland
Duration: 18 Feb 200420 Feb 2004

Conference

Conference2004 International Zurich Seminar on Communications
CountrySwitzerland
CityZurich
Period18/02/0420/02/04

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