The multicast policy and its relationship to replicated data placement
ACM Transactions on Database Systems (TODS)
RDMAR: a bandwidth-efficient routing protocol for mobile ad hoc networks
WOWMOM '99 Proceedings of the 2nd ACM international workshop on Wireless mobile multimedia
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Multicasting is used within local-area networks to make distributed applications more robust and more efficient. The growing need to distribute applications across multiple, interconnected networks, and the increasing availability of high-performance, high-capacity switching nodes and networks, lead us to consider providing LAN-style multicasting across an internetwork. In this paper, we propose extensions to two common internetwork routing algorithms -- distance-vector routing and link-state routing -- to support low-delay datagram multicasting. We also suggest modifications to the single-spanning-tree routing algorithm, commonly used by link-layer bridges, to reduce the costs of multicasting in large extended LANs. Finally, we show how different link-layer and network-layer multicast routing algorithms can be combined hierarchically to support multicasting across large, heterogeneous internetworks.