Caching architectures and optimization strategies for IPTV networks

Authors:
Bill Krogfoss;Lev Sofman;Anshul Agrawal
Affiliations:
Alcatel-Lucent's corporate Chief Technology Office (CTO), Plano, Texas;Alcatel-Lucent's corporate Chief Technology Office (CTO), Plano, Texas;Alcatel-Lucent in Plano, Texas
Venue:
Bell Labs Technical Journal - Content Networking
Year:
2008

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Abstract

This paper looks at the issue of optimization for caching architectures for Internet Protocol (IP) router networks for unicast video. There are several optimization challenges when designing caching architectures. These include where the caches should be located, how much memory is needed per cache, which services should be cached where, and whether hierarchical or single level caching should be used. This paper investigates topology issues and the difficulty of caching long tail content. We propose some solutions to cache architecture optimization and partitioning and look at the issue of caching long tail content. © 2008 Alcatel-Lucent.