Evaluation of novel resilience schemes in dynamic optical transport networks

Monika Jaeger; Ralf Huelsermann; Dominic A. Schupke; Rene Sedlak

doi:10.1117/12.482424

9 September 2002 Evaluation of novel resilience schemes in dynamic optical transport networks

Monika Jaeger, Ralf Huelsermann, Dominic A. Schupke, Rene Sedlak

Proceedings Volume 4910, Optical Networking II; (2002) https://doi.org/10.1117/12.482424
Event: Asia-Pacific Optical and Wireless Communications 2002, 2002, Shanghai, China

Abstract

Today, Wavelength Division Multiplexing (WDM) transmission systems are deployed extensively in transport networks. They are used mainly for static point-to-point connections. With the availability of fast reconfigurable Optical Cross Connects (OXC) and the introduction of a control plane in the Optical Transport Network (OTN), optical channel based logical networks can be built for dynamic WDM networks. Resilience in current transport networks is mainly based on static SONET/SDH dedicated and shared protection. Distributed control planes allow new, flexible protection mechanisms (e.g. GMPLS reroute and fast reroute). To evaluate future distributed control concepts and new resilience schemes in transport networks, we have implemented a dynamic OTN simulation model. Several case studies have been performed using different protection and restoration methods. Different failure scenarios (single or multiple link failures) were used. The paper evaluates the case studies in terms of scalability, recovery time criteria, capacity use (efficiency) and availability. It is shown that the new and flexible resilience schemes are a promising alternative to traditional statically preplanned protection in transport networks. Furthermore, they provide increased network availability in multiple failure cases.

Citation Download Citation

Monika Jaeger, Ralf Huelsermann, Dominic A. Schupke, and Rene Sedlak "Evaluation of novel resilience schemes in dynamic optical transport networks", Proc. SPIE 4910, Optical Networking II, (9 September 2002); https://doi.org/10.1117/12.482424

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