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Impact of traffic mix on caching performance in a content-centric network

Abstract : For a realistic traffic mix, we evaluate the hit rates attained in a two-layer cache hierarchy designed to reduce Internet bandwidth requirements. The model identifies four main types of content, web, file sharing, user generated content and video on demand, distinguished in terms of their traffic shares, their population and object sizes and their popularity distributions. Results demonstrate that caching VoD in access routers offers a highly favorable bandwidth memory tradeoff but that the other types of content would likely be more efficiently handled in very large capacity storage devices in the core. Evaluations are based on a simple approximation for LRU cache performance that proves highly accurate in relevant configurations.
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Conference papers
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Contributor : Philippe Robert Connect in order to contact the contributor
Submitted on : Friday, February 3, 2012 - 3:56:45 PM
Last modification on : Friday, January 21, 2022 - 3:16:56 AM

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  • HAL Id : hal-00666169, version 1
  • ARXIV : 1202.0108



Christine Fricker, Philippe Robert, James Roberts, Nada Sbihi. Impact of traffic mix on caching performance in a content-centric network. IEEE NOMEN 2012, Workshop on Emerging Design Choices in Name-Oriented Networking, Jun 2012, Orlando, United States. ⟨hal-00666169⟩



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