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Cited by 787

The DOI matches its Crossref record; 17 of the 17 references it cites were found in a registry or an index.

A signal analysis of network traffic anomalies

Barford, Paul, Kline, Jeffery, Plonka, David, Ron, Amos·2002·Proceedings of the second ACM SIGCOMM Workshop on Internet measurment - IMW '02

Abstract

Identifying anomalies rapidly and accurately is critical to the efficient operation of large computer networks. Accurately characterizing important classes of anomalies greatly facilitates their identification; however, the subtleties and complexities of anomalous traffic can easily confound this process. In this paper we report results of signal analysis of four classes of network traffic anomalies: outages, flash crowds, attacks and measurement failures. Data for this study consists of IP flow and SNMP measurements collected over a six month period at the border router of a large university. Our results show that wavelet filters are quite effective at exposing the details of both ambient and anomalous traffic. Specifically, we show that a pseudo-spline filter tuned at specific aggregation levels will expose distinct characteristics of each class of anomaly. We show that an effective way of exposing anomalies is via the detection of a sharp increase in the local variance of the filtered data. We evaluate traffic anomaly signals at different points within a network based on topological distance from the anomaly source or destination. We show that anomalies can be exposed effectively even when aggregated with a large amount of additional traffic. We also compare the difference between the same traffic anomaly signals as seen in SNMP and IP flow data, and show that the more coarse-grained SNMP data can also be used to expose anomalies effectively.

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Metadata

Authors
Barford, P., Kline, J., Plonka, D., & Ron, A.
Venue
Proceedings of the second ACM SIGCOMM Workshop on Internet measurment - IMW '02
Publisher
ACM Press
Published
2002
Pages
71
OpenAlex
W2121511513
Cited by
787
References
17
Type
conference abstract
Language
en
Open access
closed

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CoChat. (2026). Citation check: A signal analysis of network traffic anomalies. https://app.cochat.ai/papers/10.1145/637201.637210
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Barford, P., Kline, J., Plonka, D., & Ron, A. (2002). A signal analysis of network traffic anomalies. Proceedings of the second ACM SIGCOMM Workshop on Internet measurment - IMW '02. https://doi.org/10.1145/637201.637210

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