Simulation studies of OpenFlow-based in-network caching strategies

  • Authors:
  • Ting Li;Nathanael Van Vorst;Rong Rong;Jason Liu

  • Affiliations:
  • Florida International University;Florida International University;Florida International University;Florida International University

  • Venue:
  • Proceedings of the 15th Communications and Networking Simulation Symposium
  • Year:
  • 2012

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Abstract

We propose an in-network caching architecture using Open-Flow to coordinate caching decisions in the network. Our scheme, called CacheFlow, extends the cache-and-forward concept by moving contents closer to the clients hop-by-hop using TCP for sending requests and retrieving contents. As such, CacheFlow can be incrementally implemented and deployed in the real network. In this paper, we present a simulation study of several caching policies, including a random cache policy, a statically optimal cache placement policy and a new disk placement strategy that places popular contents at the "center" of the network. Experimental results show that simple in-network caching policies can be realized using today's technology to improve network performance.