| Proposed new standard co-authored by OneLab researcher |
| Tuesday, 07 April 2009 09:22 |
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Dr Tanja Zseby of Fraunhofer FOKUS has co-authored a proposed new Internet standard on packet sampling. This document is the fruit of several years' work in the Packet Sampling Working Group of the Internet Engineering Task Force (IETF, the body that sets standards for the Internet) and is relevant to OneLab in the context of the project's work on packet tracking, covered in WP5, of which Dr Zseby is leader.
Information moves through the Internet in packets. On any given Internet connection, each second many millions of different packets will pass through, of many different types, for example web, peer-to-peer, voice over IP (VOIP), etc. To get a clear understanding of this Internet traffic, network operators and researchers need to have sophisticated and standardised ways of obtaining a representative sample of packets. This proposed standard, RFC 5475, "Sampling and Filtering Techniques for IP Packet Selection", does just this. The document describes sampling and filtering techniques for IP packet selection, provides a categorization of schemes and defines what parameters are needed to describe the most common selection schemes. Furthermore, it shows how techniques can be combined to build more elaborate packet selectors. Tanja Zseby leads OneLab2 Work Package 5: Packet Tracking. The progress made in this work package will, for the first time, give researchers on the PlanetLab Europe testbed the ability to sample Internet traffic as part of their experiments. In this context this new proposed standard provides the framework for this process. See full text of RFC 5475. |
