Networking Investigate

Provisioning Data-Aggregation Sessions in Lambda Grids

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Executive Summary

Many large-scale scientific applications need to aggregate large amounts of data from multiple distributed sites to a centralized facility. The authors call such a request as a Data-Aggregation Request (DAR). In this paper, they investigate the novel problem of on-demand DAR provisioning over a Wavelength-Division Multiplexing (WDM) backbone network. They provide a mathematical formulation for the problem as a Mixed Integer Linear Program (MILP). To solve large versions of the problem, they propose a DAR Provisioning heuristic (called DARP).They use the MILP with various objectives as a benchmark for studying the performance of DARP.

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