Abstract

With wide deployment of optical transport networks and the emergence of bandwidth-intensive applications, the idea of multicasts and groupcasts in optical networks stems from the ability to set up optical point-to-multipoint (multicast) and multipoint-to-multipoint (groupcast) sessions in wavelength-routed networks. As the technology for intelligent optical networks grows, optical groupcast applications (such as grid computing, distributed interactive simulations, multimedia-rich interactive services, virtual private network services, personal–customized content authoring services, and Ethernet LAN services) will become widely popular. In this paper we introduce the concept of groupcast routing and wavelength assignment (GC-RWA) and evaluate the performance of GC-RWA for light-forests corresponding to the groupcast sessions, when these light-forests are composed of lightpaths and light-trees.

© 2009 Optical Society of America

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