Gwendal SIMON

Gwendal SIMON

Maître de Conférences, HDR
Département Systèmes Réseaux, Cybersécurité et Droit du numérique

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Caching Policies for In-Network Caching


LI Zhe1,2, SIMON Gwendal1,2, GRAVEY Annie1,2

Type de document

Communication dans une conférence avec acte


ICCCN 2012: IEEE International Conference on Computer Communication Networks, IEEE, 30 july - 02 august 2012, Munich, Germany, 2012




Recent works on Information Centric Networking enable the exploitation of the caching resources in the new generation of routers (Content Routers or CR). So far, only a basic Least Recently Used (LRU) strategy implemented on every CR has been proposed. More generally, the research community lacks methods for analyzing and evaluating caching policies (other than LRU) in generic multi-cache topologies. In this paper, we provide a model that approximates the hit-ratios of any multi-cache topology for the Least Recently/Frequently Used (LRFU) caching policies, which consist of a spectrum of policies based on a trade-off between recency and frequency. We also present a way to approximate the perforamnces of the network of caches when the input traffic changes. The approximation results can be used to decide suitable policy for CR at different positions in the network topology. With appropriate policy for each single CR, we are able to improve the performance of the whole in-network caching system.


1 : INFO - Dépt. Informatique (Institut Mines-Télécom-Télécom Bretagne-UEB)
2 : IRISA - Institut de recherche en informatique et systèmes aléatoires (UMR CNRS 6074 - Université de Rennes 1 - INRIA - INSA de Rennes - ENS de Cachan - Télécom Bretagne - Université de Bretagne Sud)

Mots clés

Content Centric Network, Multi-cache Network, Analytical Model



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