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Content-aware Traffic Engineering
Citation key FPSUF-CATE-12
Author Frank, Benjamin and Poese, Ingmar and Smaragdakis, Georgios and Uhlig, Steve and Feldmann, Anja
Title of Book Proceeings of ACM SIGMETRICS 2012 (poster session)
Pages 413–414
Year 2012
ISBN 978-1-4503-1097-0
DOI http://dx.doi.org/10.1145/2254756.2254819
Location London, UK
Address New York, NY, USA
Month June
Note Poster session; also published as Perfomance Evaluation Review, 40(1):413–414, http://dx.doi.org/10.1145/2318857.2254819
Publisher ACM
Abstract Recent studies show that a large fraction of Internet traffic is originated by Content Providers (CPs) such as content distribution networks and hyper-giants. To cope with the increasing demand for content, CPs deploy massively distributed server infrastructures. Thus, content is available in many network locations and can be downloaded by traversing different paths in a network. Despite the prominent server location and path diversity, the decisions on how to map users to servers by CPs and how to perform traffic engineering by ISPs, are independent. This leads to a lose-lose situation as CPs are not aware about the network bottlenecks nor the location of end-users, and the ISPs struggle to cope with rapid traffic shifts caused by the dynamic CP server selection process. In this paper we propose and evaluate Content-aware Traffic Engineering (CaTE), which dynamically adapts the traffic demand for content hosted on CPs by utilizing ISP network information and end-user location during the server selection process. This leads to a win-win situation because CPs are able to enhance their end-user to server mapping and ISPs gain the ability to partially influence the traffic demands in their networks. Indeed, our results using traces from a Tier-1 ISP show that a number of network metrics can be improved when utilizing CaTE.
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