BURST TRAFFIC DETECTION DEVICE, BURST TRAFFIC DETECTION METHOD AND BURST TRAFFIC DETECTION PROGRAM

WIPO Patent Application WO/2021/234764

A1

In a control unit (15), a flow burst detection unit (30) calculates, for each flow (Fi), a flow threshold (THi) that dynamically changes in response to long-term fluctuations in the amount of traffic (Ni) in said flow (Fi), and detects a burst that occurred in said flow (Fi) by comparing the flow threshold (THi) to the amount of traffic (Ni) in the flow. In this manner, it is possible to accurately detect a flow burst in each flow (Fi), even if the amount of traffic (Ni) in the flow (Fi) fluctuates greatly over the long term.

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YOSHIDA SHUHEI (JP)
UZAWA HIROYUKI (JP)
HATTA SAKI (JP)
NITTA KOYO (JP)

PCT/JP2020/019595

November 25, 2021

May 18, 2020

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NIPPON TELEGRAPH & TELEPHONE (JP)

H04L12/70

JP2017188814A	2017-10-12
JP2017028431A	2017-02-02

ISHII KAZUSHI: "NTT-AT, network traffic monitoring system "@FlowInspector" that combines flexibility and high-speed processing", CLOUD WATCH, 12 June 2019 (2019-06-12), pages 1 - 2, XP055874526, [retrieved on 20211220]
SUN, AARON ET AL.: "Burst Detection From Multiple Data Streams: A Network-Based Approach", IEEE TRANSACTIONS ON SYSTEMS, MAN, AND CYBERNETICS, PART C (APPLICATIONS AND REVIEWS, vol. 40, no. 3, 12 January 2010 (2010-01-12), pages 258 - 267, XP011346085, DOI: 10.1109/TSMCC.2009.2037311

YAMAKAWA, Shigeki et al. (JP)

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