Dynamic Groupcast Traffic Grooming in WDM Networks

Groupcast communication is gaining momentum due to the increasing demands of bandwidth-intensive parallel computing and collaborations. Groupcast is a multipoint-to-multipoint communication pattern, where one or more member nodes in a group are allowed to send traffic with various rates to all other members within the group. Efficient implementation of groupcast requires in-group or cross-group traffic grooming. This paper studies the application of traffic grooming to support dynamic groupcast provisioning in WDM networks with ring and mesh topologies. The design issues such as routing, in-group and cross-group traffic grooming and traffic sub-grouping are addressed.