Minimizing Bandwidth on Peering Links with Deflection in Named Data Networking
Tue, 04/23/2013 - 10:55 by Damien Saucez
Abstract
Content dissemination is the primary usage of the Internet today, whereas the existing Internet architecture based on TCP/IP is mainly designed for point-to-point communications. Information-Centric Networking (ICN) has been proposed to conciliate Internet usage and technology. The idea is to omit the notion of host and location and establish content as the first class citizen of the network. ICN advocates in-network caching, i.e., to cache content on the path from content providers to requesters. This on-path caching achieves good overall performance but is not optimal as content may be replicated reducing so total number of cached content. To overcome this limitation, we introduce the notion of off-path caching where we allocate content to well defined off-path caches within the network and deflect the traffic off the optimal path toward these caches spread across the network. Off-path caching improves the global hit ratio by efficiently utilizing the network-wide available caching capacity, and permits to reduce egress links’ bandwidth usage.
- Authors
- Chadi Barakat, Anshuman Kalla, Damien Saucez and Thierry Turletti
- Source
Third International Conference on Communications and Information Technology , 2013.
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