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Shared Sub-Path Protection Algorithm with Recovery Time Constraint in WDM Networks

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6 Author(s)
Lei Guo ; Northeastern Univ., Shenyang ; Xingwei Wang ; Jin Cao ; Lemin Li
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This paper proposes a new heuristic algorithm called Traffic recovery time Constrained Shared Sub-Path Protection (TC_SSPP) to provide survivability in WDM networks with Shared-Risk-Link-Group (SRLG). By properly setting the delay parameter of each link and running the Delay Constrained Shortest Path Algorithm (DCSPA) to compute the backup sub-paths, TC_SSPP can effectively guarantee the traffic recovery time for connection requests. Simulation results show that TC_SSPP outperforms the traditional algorithms.

Published in:

Networking and Services, 2008. ICNS 2008. Fourth International Conference on

Date of Conference:

16-21 March 2008