ASIAN INTERNET ENGINEERING CONFERENCE (AINTEC) 2013
Date: 13th-15th November 2013
Venue: Doi Suthep 1 – 2, Kantary Hills Hotel, Chiang Mai, Thailand
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On mice, elephants and information centric zoos
Dario Rossi (TELECOM ParisTech, France)Abstract
One of the main research directions along which the future Internet is evolving can be identified in the paradigmatic shift from a network of hosts toward a network of caches. This evolution raised a debate in the scientific community, and raised new challenges for ICN performance evaluation as well, on both modeling and algorithmic aspects.
One of such recent debate revolves around the usefulness of pervasive caching, i.e., adding caching capabilities to possibly every router of the future Internet. Recent research argues against it, on the ground that it provides only very limited gain with respect to the current CDN scenario, where caching only happens at the network edge. In this talk, we instead show that advantages of ubiquitous caching appear only when meta-caching and forwarding decisions are tightly coupled -- and especially appear when ideal Nearest Replica Routing (iNRR) forwarding and Leave a Copy Down (LCD) meta-caching are jointly in use.
Another component of the debate revolves around the scalability of individual algorithms (e.g., name based lookup and routing) and components (e.g., caches) of these novel Information Centric Networking (ICN) architectures. By exploiting a peculiar characteristics of ICN (i.e., the fact that contents are split in chunks), and the nature of video streaming (which dominates Internet traffic), we propose a novel two-layers caching scheme that allows multi-Terabyte caches to sustain content streaming at multi-Gbps speed.
To assist and promote cross-comparison, we make all our code available to the scientific community in ccnSim http://www.enst.fr/~drossi/ccnSim