Presentation 2023-04-14
Network Anomaly Detection through Variable Granularity Traffic Analysis
Shohei Kamamura, Yuya Takeda, Yuki Takei, Masato Nishiguchi, Yuhei Hayashi, Takayuki Fujiwara,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) In the Society 5.0, it is important to accurately measure and analyze the communication traffic flow in wide-area IP networks, and to be able to promptly detect communication anomalies for achieving sustainable social infrastructure. However, in wide-area IP networks, communication traffic flow is encapsulated by headers assigned by communication carriers, and thus is observed as more macroscopic information. Therefore, it is difficult to accurately detect the occurrence of anomalies for an individual communication flow because the flow observation results obtained by flow measurement protocols such as IPFIX are the result of superimposing various communication flows with different characteristics. In this paper, we propose a method of anomaly analysis and detection method from time-series traffic flows. First, we decompose superimposing traffic flows into individual flows by using our implementation of the Fast xFlow Proxy, which can decompose communication traffic flows to a fine granularity. Then, our algorithm detects anomalies from decomposed flows based on correlation analysis. We report the results of a simulation evaluation of the proposed method, which shows that it can achieve anomaly detection quickly and accurately.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) IP Network, / xFlow / Communication Traffic / Correlation Analysis / Anomaly Detection
Paper # NS2023-9
Date of Issue 2023-04-06 (NS)

Conference Information
Committee NS
Conference Date 2023/4/13(2days)
Place (in Japanese) (See Japanese page)
Place (in English) Nihon University, Koriyama Campus + Online
Topics (in Japanese) (See Japanese page)
Topics (in English) Communication traffic theory, Traffic and quality evaluation, Network performance evaluation, QoS/QoE, Reliability and robustness, Traffic and quality management, AI and machine learning, Network and system operation management, High capacity, low latency, many connections, General
Chair Tetsuya Oishi(NTT)
Vice Chair Takumi Miyoshi(Shibaura Insti of Tech.)
Secretary Takumi Miyoshi(NTT)
Assistant Kotaro Mihara(NTT)

Paper Information
Registration To Technical Committee on Network Systems
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Network Anomaly Detection through Variable Granularity Traffic Analysis
Sub Title (in English)
Keyword(1) IP Network,
Keyword(2) xFlow
Keyword(3) Communication Traffic
Keyword(4) Correlation Analysis
Keyword(5) Anomaly Detection
1st Author's Name Shohei Kamamura
1st Author's Affiliation Seikei University(Seikei Univ.)
2nd Author's Name Yuya Takeda
2nd Author's Affiliation Seikei University(Seikei Univ.)
3rd Author's Name Yuki Takei
3rd Author's Affiliation NTT Network Innovation Center(NTT)
4th Author's Name Masato Nishiguchi
4th Author's Affiliation NTT Network Innovation Center(NTT)
5th Author's Name Yuhei Hayashi
5th Author's Affiliation NTT Network Innovation Center(NTT)
6th Author's Name Takayuki Fujiwara
6th Author's Affiliation NTT Network Innovation Center(NTT)
Date 2023-04-14
Paper # NS2023-9
Volume (vol) vol.123
Number (no) NS-2
Page pp.pp.44-49(NS),
#Pages 6
Date of Issue 2023-04-06 (NS)