Low-Overhead Dynamic Sampling for Redundant Traffic Elimination
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| Title | Low-Overhead Dynamic Sampling for Redundant Traffic Elimination |
| Authors | |
| Abstract | Protocol-independent redundant traffic elimination (RTE) is an "on the fly" method for detecting and removing redundant chunks of data from network-layer packets traversing a constrained link or path. Efficient algorithms are needed to sample data chunks and detect redundancy, so that RTE does not hinder network throughput. A recently proposed static algorithm samples chunks based on highly-redundant trigger bytes observed in data content. While this algorithm is fast, it requires pre-computed traffic information for the configuration of its static parameters, and it tends to either under-sample (reducing byte savings) or over-sample (increasing processing cost) on heterogeneous traffic. We propose a dynamic sampling algorithm for redundant content detection. Our algorithm is adaptive and self-configuring, and can precisely match the specified sampling rate. Furthermore, it offers byte savings comparable to the static algorithm, with very low additional processing overhead. |
| Publisher | ACADEMY PUBLISHER |
| Date | 2012-01-01 |
| Source | Journal of Communications Vol 7, No 1 (2012): Special Issue: Advances in Communications and Networking - II |
| Rights | Copyright © ACADEMY PUBLISHER - All Rights Reserved.To request permission, please check out URL: http://www.academypublisher.com/copyrightpermission.html. |