Claeys, M; Tuncer, D; Famaey, J; Charalambides, M; Latre, S; De Turck, F; Pavlou, G; (2014) Towards Multi-Tenant Cache Management for ISP Networks. In: Proceedings of 2014 European Conference on Networks and Communications (EuCNC). (pp. pp. 378-382). IEEE: Bologna, Italy.

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Abstract

The decreasing cost of storage and the advent of virtualization technology can allow Internet Service Providers (ISPs) to deploy multi-tenant caching infrastructures and lease them to content producers and Content Delivery Networks (CDNs). Serving content requests directly from the ISP network does not only reduce the delivery time, but also allows the ISP to optimize the network resources by controlling the placement and routing of content items. In this paper, we introduce a multi-tenant cache management approach that significantly reduces the bandwidth utilization of ISPs networks by pro-actively allocating caching space, leased by content producers and/or CDNs, and intelligently routing content to the end users. Using real content request traces, we show that the optimal solution to this problem can increase the cache hit ratio by 70.64% while reducing the bandwidth usage by 57.17% on average, compared to a commonly used reactive cache management scheme. These results provide a benchmark for the development of novel multi-tenant cache management strategies.

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