¢ ¢ ¢ ¢ ¢ ¢ ¢ ¢ ¢ ¢ ¢ ¢ ¢ ¢ ¢ ¢ ¢ ¢ ¢ ¢ ¢ ¢ ¢ ¢ ¢ ¢ ¢ ¢ ¢ ¢ ¢ ¢ ¢ ¢ ¢ ¢ ¢ ¢ ¢ ¢ ¢ ¢ ¢ ¢ ¢ ¢ ¢ ¢ ¢ ¢ ¢ ¢ ¢ ¢ ¢ ¢ ¢ ¢ ¢ ¢ ¢ ¢ ¢ ¢ ¢ ¢ ¢ ¢ ¢ ¢ Public Review for Leveraging Zipf s Law for Traffic Offloading Nadi Sarrar, Steve Uhlig, Anja Feldmann, Rob Sherwood, and Xin Huang This paper presented a router architecture design that consists of a complex software based controller and a simple fast packet forwarder. By leveraging the Zipf's property of the Internet traffic, authors proposed to improve router performance by passing a small number of heavy hitter traffic flows to the fast packet forwarder and hence offloading the software controller from most packets. The idea itself seems to be very simple. The authors showed that the top 1000 heavy hitter prefixes capture over 50% of traffic. The controller can be easily configured to offload these top heavy hitter flows to the forwarder. However, due to the churn in heavy hitter
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