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A disjoint path selection scheme based on enhanced shared risk link group management for multi-reliability service

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4 Author(s)
T. Miyamura ; Lab. of NTT Network Service Syst., NTT Corp., Tokyo, Japan ; T. Kurimoto ; A. Misawa ; S. Urushidani

We consider a mechanism for providing a multi-reliability service in multilayer GMPLS networks. By introducing GMPLS restoration techniques and shared risk link group management, we can provide a highly reliable protected connection service. However, there is a trade-off between reliability and efficiency of network resource usage. In addition, reliability requirements differ depending on the type of service (e.g., Internet access or leased line). Thus, we propose a mechanism for calculating an efficient route for a protected connection that can satisfy specific reliability conditions requested by customers. We also present simulation results that indicate our schemes are remarkably effective for achieving a better balance between end-to-end reliability and efficiency. We also demonstrate the quantitative relationship between availability of service and resource efficiency through simulation experiments

Published in:

GLOBECOM '05. IEEE Global Telecommunications Conference, 2005.  (Volume:4 )

Date of Conference:

2-2 Dec. 2005