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Ryan Wu and Andrew Chien (2004)

Evaluation of Rate-based Transport Protocols for Lambda-Grids

In: Proceedings of the Thirteenth IEEE International Symposium on High-Performance Distributed Computing, IEEE Press.

Lambda-Grids are richly interconnected collections of plentiful, geographically-distributed computing and storage resources. This rich connectivity is enabled by dedicated dense wavelength division multiplexing (DWDM) optical paths. With abundant bandwidth in the center of the network (many DWDM links), contention and sharing bottlenecks move from the network core to end systems. In such networks, traditional TCP is insufficient to provide acceptable performance. We identify the key communication characteristics of this radically different network, introducing a new multipointto- point communication pattern for data-intensive application. We evaluate several promising rate-based data transport protocols (RBUDP, SABUL/UDT and GTP) for lambda-Grids under a range of communication patterns (single stream, multiple parallel streams, converging streams, and rapid transitions). Our experim