Network survivability performance evaluation with applications in WDM networks with wavelength conversion

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Keshtgary, M

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Type of Document: Article
DOI: 10.1109/LCN.2004.84
Publisher: 2004
Abstract:
Network survivability gauges the ability of a network to support the committed Quality of Services (QoS) continuously in the presence of various failure scenarios. We perceive that both performance and availability are integral components of survivability. Therefore, we propose a composite model for survivability that consists of performance and availability analysis. A analytical technique is presented to find the excess loss due to failure (ELF) when the system is operating in gracefully degraded states. An algorithm is proposed to carry out the availability analysis of the network even when the available paths between nodes are non-disjoint. These two models are combined to construct a hierarchical model to evaluate the network survivability performance. We consider single and multiple link failures, and also node failures. A WDM network with wavelength conversion is used as an example for this evaluation. © 2004 IEEE
Keywords:
Intelligent networks ; WDM networks ; Availability ; Optical wavelength conversion ; Transient analysis ; Computer networks ; Failure analysis ; Protection ; Performance analysis ; Optical fiber networks
Source: Proceedings - 29th Annual IEEE International Conference on Local Computer Networks, LCN 2004, Tampa, FL, 16 November 2004 through 18 November 2004 ; 2004 , Pages 344-351
URL: https://ieeexplore.ieee.org/document/1367236