Invited: Routing Strategies for Capacity-Efficient and Fast-Restorable Mesh Optical Networks

Invited: Routing Strategies for Capacity-Efficient and Fast-Restorable Mesh Optical Networks Wavelength division multiplexed (WDM)-based mesh network infrastructures that route optical connections using intelligent optical cross-connects (OXCs) are emerging as the technology of choice to implement the next generation core optical networks. In these architectures a single OXC is capable of switching tens of terabits of traffic per second. With such data transfer rates at stake, it becomes increasingly challenging for carriers to (1) efficiently and cost-effectively operate and manage their infrastructure, and (2) cope with network failures while guaranteeing prescribed service level agreements (SLAs) to their customers. Proper routing of primary and backup paths is a critical component of the routing and restoration architecture required to meeting these challenges. In this paper we review some of the various strategies and approaches proposed so far to intelligently route connections while at the same time providing guaranteed protection against various types of network failures. We explore the tradeoffs associated with these approaches, and investigate in particular different, sometimes competing aspects, such as cost/capacity required, level of protection (link vs. node failure), restoration time, and complexity of route computation. Photonic Network Communications Springer Journals

Invited: Routing Strategies for Capacity-Efficient and Fast-Restorable Mesh Optical Networks

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Kluwer Academic Publishers
Copyright © 2002 by Kluwer Academic Publishers
Computer Science; Computer Communication Networks; Electrical Engineering; Characterization and Evaluation of Materials
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  • Optical network design and restoration
    Doshi, B.; Dravida, S.; Harshavardhana, P.; Hauser, O.; Wang, Y.

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