WO2015136812A1 - Serveur intermédiaire, système de réseau et procédé de limitation de l'emplacement et de la cause de la dégradation de la qualité de leurs communications - Google Patents

Serveur intermédiaire, système de réseau et procédé de limitation de l'emplacement et de la cause de la dégradation de la qualité de leurs communications Download PDF

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Publication number
WO2015136812A1
WO2015136812A1 PCT/JP2014/083530 JP2014083530W WO2015136812A1 WO 2015136812 A1 WO2015136812 A1 WO 2015136812A1 JP 2014083530 W JP2014083530 W JP 2014083530W WO 2015136812 A1 WO2015136812 A1 WO 2015136812A1
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WO
WIPO (PCT)
Prior art keywords
communication
communication delay
pattern
communication quality
completion time
Prior art date
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PCT/JP2014/083530
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English (en)
Japanese (ja)
Inventor
延之 村中
啓生 宮本
橋本　和則
Original Assignee
株式会社日立製作所
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Publication date
Application filed by 株式会社日立製作所 filed Critical 株式会社日立製作所
Publication of WO2015136812A1 publication Critical patent/WO2015136812A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/64—Hybrid switching systems
    • H04L12/6418—Hybrid transport
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/04—Arrangements for maintaining operational condition

Definitions

  • 10 is an example of a setting table for periodic communication information in the third embodiment. It is an example of the record table for periodic communication in Example 3 form. 10 is a flowchart of a periodic communication specifying unit in the third embodiment. It is a difference block diagram with Example 1 of the middle server in Example 4.
  • FIG. 14 is an example of a setting table for communication delay increase / decrease measurement in the fourth embodiment.
  • FIG. 10 is a sequence diagram of communication delay increase / decrease measurement in the fourth embodiment.
  • 10 is a flowchart of a communication delay increase / decrease measurement unit in the fourth embodiment.
  • 14 is an example of a result table of communication delay increase / decrease measurement in the fourth embodiment. It is a block diagram of the field device in Example 5. It is a difference block diagram with Example 1 of the middle server in Example 5.
  • the communication delay pattern 1302 stores the number of the index 1201 in the communication delay pattern setting table 253 as a number indicating the corresponding communication delay pattern.
  • the location candidate 1303 stores a location candidate that causes such communication delay when the communication delay pattern 1302 of the entry is generated.
  • the cause candidate 1304 stores a candidate for a cause of such communication delay when the communication delay pattern 1302 of the entry is generated.
  • FIG. 26 is an example of the analysis setting table 257 according to the communication delay pattern and the influence range in this embodiment.
  • the analysis setting table 257 based on the communication delay pattern and the influence range includes a priority 2601 and a countermeasure order determination reference 2602 in addition to the first embodiment in the second embodiment.
  • FIG. 29 when the communication requirements in the network system are not clarified and the period of periodic communication is unknown, the criterion for determining the period and the increase in communication delay as parameters (thresholds that are counted in the communication delay pattern to be described) An example of a method for creating a threshold to be counted) based on a monitoring result of actual communication is shown.
  • the period 3302 stores the period interval of the periodic communication.
  • the unit is not limited to [sec].
  • the IP and src port numbers of the partner side and the sender side of dst and src, respectively, are stored as periodic communication information. For items that are difficult to determine, * or the like may be designated as a wild card. In particular, the src port number is often assigned automatically during communication.
  • IP it is possible to perform masking that makes the upper bits valid, or to express other than IP address such as host name and domain name.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)

Abstract

L'invention concerne un système de réseau où un serveur intermédiaire, qui transmet des communications de commande entre un serveur d'applications et des machines sur le terrain, comporte une unité de transmission qui transmet des communications de commande réciproques périodiques au départ du serveur d'applications et à destination des machines sur le terrain, ainsi qu'une unité de mesure de délai de communication qui mesure le temps écoulé entre la transmission par l'unité de transmission et le moment où la communication réciproque est achevée. Lorsque le temps d'achèvement se dégrade, le profil de cette dégradation est mis en correspondance avec un profil défini afin d'analyser la dégradation de la qualité de la communication, et l'emplacement ainsi que la cause de la dégradation de la qualité de la communication sont limités sur la base du résultat de l'analyse de la dégradation de la qualité de la communication.
PCT/JP2014/083530 2014-03-12 2014-12-18 Serveur intermédiaire, système de réseau et procédé de limitation de l'emplacement et de la cause de la dégradation de la qualité de leurs communications WO2015136812A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2014-048495 2014-03-12
JP2014048495A JP2015173375A (ja) 2014-03-12 2014-03-12 ミドルサーバ、ネットワークシステム及びその通信品質劣化箇所と原因の絞り込み方法

Publications (1)

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WO2015136812A1 true WO2015136812A1 (fr) 2015-09-17

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PCT/JP2014/083530 WO2015136812A1 (fr) 2014-03-12 2014-12-18 Serveur intermédiaire, système de réseau et procédé de limitation de l'emplacement et de la cause de la dégradation de la qualité de leurs communications

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JP (1) JP2015173375A (fr)
WO (1) WO2015136812A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022244254A1 (fr) * 2021-05-21 2022-11-24 日本電信電話株式会社 Dispositif de détection de flux périodique, dispositif d'inférence de retard, procédé de détection de flux périodique et programme

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7330511B2 (ja) * 2020-02-18 2023-08-22 富士通フロンテック株式会社 自動取引装置、予防書換え方法、プログラム

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008061139A (ja) * 2006-09-01 2008-03-13 Kddi Corp ネットワーク監視装置およびネットワーク監視方法、コンピュータプログラム
JP2012038213A (ja) * 2010-08-10 2012-02-23 Fujitsu Ltd 判定装置、判定方法及びコンピュータプログラム
JP2013042435A (ja) * 2011-08-18 2013-02-28 Fujitsu Ltd 監視装置、監視方法、および監視プログラム

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008061139A (ja) * 2006-09-01 2008-03-13 Kddi Corp ネットワーク監視装置およびネットワーク監視方法、コンピュータプログラム
JP2012038213A (ja) * 2010-08-10 2012-02-23 Fujitsu Ltd 判定装置、判定方法及びコンピュータプログラム
JP2013042435A (ja) * 2011-08-18 2013-02-28 Fujitsu Ltd 監視装置、監視方法、および監視プログラム

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
MASATO TSURU ET AL.: "Network Performance and Quality Monitoring Based on Active Measurement", THE JOURNAL OF THE INSTITUTE OF ELECTRONICS, INFORMATION AND COMMUNICATION ENGINEERS, vol. 93, 1 April 2010 (2010-04-01), pages 298 - 303 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022244254A1 (fr) * 2021-05-21 2022-11-24 日本電信電話株式会社 Dispositif de détection de flux périodique, dispositif d'inférence de retard, procédé de détection de flux périodique et programme

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