International real-time streaming of 4K digital cinema
Future Generation Computer Systems - IGrid 2005: The global lambda integrated facility
Real time switching and streaming transmission of uncompressed 4K motion pictures
Future Generation Computer Systems
Multi-point 4K/2K layered video streaming for remote collaboration
Future Generation Computer Systems
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This paper presents the design principles of an advanced multicast router and evaluates its performance in experiments. Our multicast router features cluster computing, which has been used to develop a high performance search engine and GRID computing. The router consists of a small-scale cluster attached to a regular router. While it is not a standard router architecture, it offers high extensibility and availability without much investment. Our design is based on the new multicast technology called Flexcast [10], which naturally supports incremental deployment of the multicast infrastructure unlike IP multicast. In Flexcast, multicast packets are replicated at each router like IP multicast. However, Flexcast is implemented in the layer above the network layer; the multicast stream is transmitted by unicast between routers that support Flexcast, and bypasses routers that do not support it. The goal of this paper is to bring the concept of incremental deployment to a multicast router as well as the protocol, by means of cluster computing. We implemented several routers on Linux PCs and tested them in experiments. The results of the experiments reveal that forwarding performance and availability are greatly enhanced by cluster computing. Our efforts provide the economy, efficiency, and extensibility needed to realize the multicast infrastructure.