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

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 th...

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Main Authors UZAWA, Hiroyuki, NITTA, Koyo, HATTA, Saki, YOSHIDA, Shuhei
Format Patent
LanguageEnglish
French
Japanese
Published 25.11.2021
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Abstract 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. Dans une unité de commande (15), une unité de détection de rafale de flux (30) calcule, pour chaque flux (Fi), un seuil de flux (THi)) qui change de manière dynamique en réponse à des fluctuations à long terme de la quantité de trafic (Ni) dans ledit flux (Fi), et détecte une rafale qui s'est produite dans ledit flux (Fi) en comparant le seuil de flux (THi) à la quantité de trafic (Ni) dans le flux. De cette manière, il est possible de détecter avec précision une rafale de flux dans chaque flux (Fi), même si la quantité de trafic (Ni) dans le flux (Fi) fluctue fortement sur le long terme. 制御部(15)において、フローバースト検出部(30)は、フロー(Fi)ごとに、当該フロー(Fi)のトラフィック量(Ni)の長期的な変動に応じて動的に変化するフロー閾値(THi)を計算し、フロー閾値(THi)と当該フロー(Fi)のトラフィック量(Ni)とを比較することにより、当該フロー(Fi)で発生したバーストを検出する。これにより、フロー(Fi)のトラフィック量(Ni)が長期的に大きく変動する場合でも、フロー(Fi)ごとにフローバーストを正確に検出できる。
AbstractList 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. Dans une unité de commande (15), une unité de détection de rafale de flux (30) calcule, pour chaque flux (Fi), un seuil de flux (THi)) qui change de manière dynamique en réponse à des fluctuations à long terme de la quantité de trafic (Ni) dans ledit flux (Fi), et détecte une rafale qui s'est produite dans ledit flux (Fi) en comparant le seuil de flux (THi) à la quantité de trafic (Ni) dans le flux. De cette manière, il est possible de détecter avec précision une rafale de flux dans chaque flux (Fi), même si la quantité de trafic (Ni) dans le flux (Fi) fluctue fortement sur le long terme. 制御部(15)において、フローバースト検出部(30)は、フロー(Fi)ごとに、当該フロー(Fi)のトラフィック量(Ni)の長期的な変動に応じて動的に変化するフロー閾値(THi)を計算し、フロー閾値(THi)と当該フロー(Fi)のトラフィック量(Ni)とを比較することにより、当該フロー(Fi)で発生したバーストを検出する。これにより、フロー(Fi)のトラフィック量(Ni)が長期的に大きく変動する場合でも、フロー(Fi)ごとにフローバーストを正確に検出できる。
Author NITTA, Koyo
UZAWA, Hiroyuki
YOSHIDA, Shuhei
HATTA, Saki
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DocumentTitleAlternate バーストトラフィック検出装置、バーストトラフィック検出方法およびバーストトラフィック検出プログラム
DISPOSITIF DE DÉTECTION DE TRAFIC EN RAFALE, PROCÉDÉ DE DÉTECTION DE TRAFIC EN RAFALE ET PROGRAMME DE DÉTECTION DE TRAFIC EN RAFALE
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Snippet 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...
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ELECTRICITY
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
Title BURST TRAFFIC DETECTION DEVICE, BURST TRAFFIC DETECTION METHOD AND BURST TRAFFIC DETECTION PROGRAM
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