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A native content discovery mechanism for the information-centric networks

Ascigil, M; Sourlas, V; Psaras, I; Pavlou, G; (2017) A native content discovery mechanism for the information-centric networks. In: Schmidt, TC and Seedorf, J, (eds.) ICN '17: Proceedings of the 4th ACM Conference on Information-Centric Networking. (pp. pp. 145-155). Association for Computing Machinery (ACM): New York, NY, USA. Green open access

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Abstract

Recent research has considered various approaches for discovering content in the cache-enabled nodes of an Autonomous System (AS) to reduce the costly inter-AS traffic. Such approaches include i) searching content opportunistically (on-path) along the default intra-AS path towards the content origin for limited gain, and ii) actively coordinate nodes when caching content for significantly higher gains, but also higher overhead. In this paper, we try to combine the merits of both worlds by using traditional opportunistic caching mechanisms enhanced with a lightweight content discovery approach. Particularly, a content retrieved through an inter-AS link is cached only once along the intra-AS delivery path to maximize network storage utilization, and ephemeral forwarding state to locate temporarily stored content is established opportunistically at each node along that path during the processing of Data packets. The ephemeral forwarding state either points to the arriving or the destination face of the Data packet depending on whether the content has already been cached along the path or not. The challenge in such an approach is to appropriately use and maintain the ephemeral forwarding state to minimize inter-AS content retrieval, while keeping retrieval latency and overhead at acceptable levels. We propose several forwarding strategies to use and manage ephemeral state and evaluate our mechanism using an ISP topology for various system parameters. Our results indicate that our opportunistic content discovery mechanism can achieve near-optimal performance and significantly reduce inter-AS traffic.

Type: Proceedings paper
Title: A native content discovery mechanism for the information-centric networks
Event: 4th ACM Conference on Information-Centric Networking (ICN '17)
Location: Berlin, Germany
Dates: 26 September 2017 - 28 September 2017
ISBN-13: 9781450351225
Open access status: An open access version is available from UCL Discovery
DOI: 10.1145/3125719.3125734
Publisher version: http://dx.doi.org/10.1145/3125719.3125734
Language: English
Additional information: This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions.
Keywords: Off-path caching; Content discovery, Routing, Management
UCL classification: UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Electronic and Electrical Eng
URI: https://discovery.ucl.ac.uk/id/eprint/10024610
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