Resource assignment in multi-service survivable networks based on the cycle-oriented approach

Service Convergence is a prospective goal to reach considerable economic benefits in a Multi-Service Network (MSN) environment. Elements such as Multi-Service Provisioning Platforms and Multi-Technology Network Management systems together with suitable MSN modeling are the key underlying components supporting that goal. The paper relates to the framework of MSN modeling and specifically addresses the issue of assigning resources in an MSN environment to provide differential survivability. In this paper we specify aspects of MSN survivability, explain the Cycle-oriented approach for Path Protection/Restoration and the survivable traffic types to be supported. We detail two network models for optimal resource allocation with special emphasis on large-network considerations and present some typical results that reflect the strengths of the network models developed.