Abstract

In many enterprises today, middleboxes called WAN optimizers are deployed across WAN access links in order to eliminate redundancy in network traffic and reduce WAN access costs. However, middleboxes do not cope well with end-to-end encrypted traffic and do not improve performance of mobile smartphones operating over wireless links. In this talk, we present the design and implementation of EndRE, an end system-based redundancy elimination service. Since the service relies on opportunistically leveraging resources on end hosts, EndRE is designed to be adaptive, asymmetric and parsimonious in resource usage. Based on the enterprise traffic traces, testbed experiments and a pilot deployment, we show that EndRE delivers ~30% bandwidth savings, processes payloads at speeds of 1.5-4Gbps, and translates bandwidth savings into equivalent energy savings on mobile smartphones.

Bio: Ram Ramjee received his B.Tech in Computer Science from IIT Madras in 1992, and his M.S./Ph.D. in Computer Science from University of Massachusetts, Amherst in 1994 and 1997, respectively. He is currently a Senior Researcher at Microsoft Research, India. Previously, he spent ten years at Bell Labs, NJ as a technical manager and a distinguished member of technical staff. His research interests include network protocols and architecture, wireless networking and mobile computing. He has taught two graduate-level courses in wireless networks as an adjunct faculty at Columbia University. He has served as the Technical Program Co-Chair of IEEE ICNP ’04 and ACM MobiCom’06. He has published over 50 papers, holds 16 patents and is a Fellow of the IEEE .