A Novel Approach to Provision Differentiated Services in Survivable IP-over-WDM Networks
2008 (English)In: Optical Switching and Networkning Journal, ISSN 1573-4277, E-ISSN 1872-9770, Vol. 5, no 2-3, 170-176 p.Article in journal (Refereed) Published
IP-over-WDM networks are starting to replace legacy telecommunications infrastructure and they form a promising solution for next-generation networks (NGNS). Survivability of an IP-over-WDM network is gaining increasing interest from both the Internet research community and service providers (SPs). We consider a novel static bandwidth-provisioning algorithm to support differentiated services in a survivable IP-over-WDM network. We propose and investigate the characteristics of both integer linear program (ILP) and heuristic approaches to solve this problem. In the heuristic method, we propose backup reprovisioning to ensure network resilience against single-node or multiple-link failures. Illustrative examples compare and evaluate the performance of the two methods in terms of capacity-usage efficiency and computation time.
Place, publisher, year, edition, pages
2008. Vol. 5, no 2-3, 170-176 p.
Differentiated service provisioning, IP-over-WDM networks, Survivability, ILP
Engineering and Technology
IdentifiersURN: urn:nbn:se:kth:diva-91448DOI: 10.1016/j.osn.2008.01.007ISI: 000263592700011OAI: oai:DiVA.org:kth-91448DiVA: diva2:510316
QC 201203272012-03-152012-03-152012-03-27Bibliographically approved