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Taming the Flying Cable Monster: A Topology Design and Optimization Framework for Data-Center Networks

Mudigonda, Jayaram; Yalagandula, Praveen; Mogul, Jeffrey C.;
HP Laboratories


Keyword(s): Datacenter Network; Physical design; Cabling; Wiring; Topologies;

Abstract: Data-center network designers now have many choices for high-bandwidth, multi-path network topologies. Some of these topologies also allow the designer considerable freedom to set parameters (for example, the number of ports on a switch, link bandwidths, or switch-to-switch wiring patterns) at design time. This freedom of choice, however, requires the designer to balance among bandwidth, latency, reliability, parts cost,and other real-world details. Designers need help in exploring this design space, and especially in finding optimal network designs. We describe the specific challenges that designers face, and we present Perseus, a framework for quickly guiding a network designer to a small set of candidate designs. We identify several optimization problems that can be accommodated within this framework, and present solution.

14 Pages

External Posting Date: September 6, 2011 [Fulltext]. Approved for External Publication
Internal Posting Date: September 6, 2011 [Fulltext]

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