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Anja Feldmann's Publications

Looking behind and beyond self-similarity: Scaling phenomena in measured WAN traffic
Citation key FGWK-LBBSS-97
Author Feldmann, Anja and Gilbert, Anna and Willnger, Walter and Kurtz, T.G.
Title of Book Proc. of the 35th Annual Allerton Conference on Communication, Control, and Computing
Pages 269–280
Year 1997
Location Allerton, IL, USA
Month October
Note This is an earlier verion of FGWK-CNNTSP-98.
Abstract In this paper, we report on some preliminary results from an in-depth, wavelet-based analysis of a set of high-quality, packet-level traffic measurements, collected over the last 6–7 years from a number of different working wide-area networks (WANs). We first validate and confirm an earlier finding, originally due to Paxson and Floyd, that actual WAN traffic is consistent with statistical self-similarity for sufficiently large time scales. Second, we illustrate that TCP traffic characteristics have undergone major changes within the last 3–4 years, because of the increasing popularity of the Web (WWW) and its emergence as the major contributor to WAN traffic. Finally, we provide empirical evidence that actual WAN traffic traces also exhibit scaling properties over small time scales, but that the small-time scaling phenomenon is distinctly different from the observed large-time scaling property. We relate this newly observed characteristic of WAN traffic to the effects that the dominant network protocols (e.g., TCP) and controls have on the flow of packets across the network, and discuss the potential that multifractals have for providing a structural modeling approach for WAN traffic that captures in a compact and parsimonious manner the observed scaling phenomena at large as well as small time scales.
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