A novel multi-link fault-tolerant algorithm for survivability in multi-domain optical networks

A novel multi-link fault-tolerant algorithm for survivability in multi-domain optical networks With the large-scale deployment of optical network equipments, the problems of separated domains management and the multi-domain-based survivability have become the primary challenge in new generation intelligent optical networks. Aimed at resisting multi-link failures in multi-domain optical networks (MDON), a heuristic multi-link fault-tolerant (MLFT) algorithm for survivability in MDON is proposed in this article, which applied Hamiltonian cycle protection and segment-shared protection to establish a novel survivability strategy for either intra-domain’s or inter-domain’s multiple links, respectively. Furthermore, a new virtual-link mapping scheme and link-cost formulas are presented to encourage the appropriate routing selection and load balancing, which can also contributed to better resource utilization ratio and blocking ratio. Simulation results show that MLFT realizes the multi-link fault-tolerant survivability at a lower cost with better performances in redundancy ratio, blocking ratio, and computation complexity. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Photonic Network Communications Springer Journals

A novel multi-link fault-tolerant algorithm for survivability in multi-domain optical networks

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Publisher
Springer US
Copyright
Copyright © 2012 by Springer Science+Business Media, LLC
Subject
Computer Science; Computer Communication Networks; Characterization and Evaluation of Materials; Electrical Engineering
ISSN
1387-974X
eISSN
1572-8188
D.O.I.
10.1007/s11107-011-0369-0
Publisher site
See Article on Publisher Site

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