Recovery escalation with load balancing and backup resources sharing in survivable WDM optical networks

In this paper, we propose a new survivable algorithm, called Enhanced Shared-Path Protection (ESPP), to tolerate multi-link failures in WDM optical networks. In ESPP, we consider the load balancing method to reduce the blocking probability for computing the primary paths, and we also use the idea of backup resources sharing to save backup resources for computing the backup paths. In order to tolerate multi-link failures, we perform the recovery escalation mechanism to establish new routes for carrying the traffic affected by the failures. Simulation results show that, compared with the conventional algorithm, ESPP has better resource utilization ratio, lower blocking probability, and higher protection ability.

[1]  András Kern,et al.  Surviving multiple network failures using shared backup path protection , 2003, Proceedings of the Eighth IEEE Symposium on Computers and Communications. ISCC 2003.

[2]  Biswanath Mukherjee,et al.  Survivable WDM mesh networks , 2003 .

[3]  Murti V. Salapaka,et al.  A practical approach to operating survivable WDM networks , 2002, IEEE J. Sel. Areas Commun..

[4]  W. W. Lu,et al.  Fourth-generation mobile initiatives and technologies [Guest Editorial] , 2002, IEEE Commun. Mag..

[5]  Rajiv Ramaswami,et al.  Optical layer survivability: a services perspective , 2000, IEEE Commun. Mag..

[6]  Chunming Qiao,et al.  Novel algorithms for shared segment protection , 2003, IEEE J. Sel. Areas Commun..

[7]  B. Mukherjee,et al.  New and improved approaches for shared-path protection in WDM mesh networks , 2004, Journal of Lightwave Technology.

[8]  Tibor Cinkler,et al.  Segment shared protection in mesh communications networks with bandwidth guaranteed tunnels , 2004, IEEE/ACM Transactions on Networking.

[9]  Lemin Li,et al.  Shared Sub-Path Protection Algorithm in Traffic-Grooming WDM Mesh Networks , 2004, Photonic Network Communications.

[10]  Suresh Subramaniam,et al.  On double-link failure recovery in WDM optical networks , 2002, Proceedings.Twenty-First Annual Joint Conference of the IEEE Computer and Communications Societies.

[11]  Dominic A. Schupke,et al.  Capacity Efficiency and Restorability of Path Protection and Rerouting in WDM Networks Subject to Dual Failures , 2004, Photonic Network Communications.

[12]  Biswanath Mukherjee,et al.  Backup reprovisioning to remedy the effect of multiple link failures in WDM mesh networks , 2006, IEEE Journal on Selected Areas in Communications.

[13]  Byrav Ramamurthy,et al.  Shared risk link Group (SRLG)-diverse path provisioning under hybrid service level agreements in wavelength-routed optical mesh networks , 2005, IEEE/ACM Transactions on Networking.

[14]  Suresh Subramaniam,et al.  Survivability in optical networks , 2000, IEEE Netw..

[15]  J. De Vriendt,et al.  Mobile network evolution: a revolution on the move , 2002, IEEE Commun. Mag..