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Determining thenetwork topology of a communication network

a communication network and network topology technology, applied in the direction of digital transmission, data switching network, electrical apparatus, etc., can solve the problem that the last prerequisite, however, is not fulfilled in the majority of automation network deployed today

Active Publication Date: 2015-11-19
HITACHI ENERGY LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This approach allows for the accurate determination of network topology, including physical aspects, detection of unauthorized devices, and verification of network configuration against design specifications, enhancing the reliability and integrity of communication networks.

Problems solved by technology

The latter prerequisite, however, is not fulfilled in most automation networks deployed today.

Method used

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  • Determining thenetwork topology of a communication network
  • Determining thenetwork topology of a communication network
  • Determining thenetwork topology of a communication network

Examples

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Embodiment Construction

[0011]Exemplary embodiments of the present disclosure provide a method and a network management agent for determining the topology of a communication network which is widely deployable and which includes additional aspects relating to the network topology. According to an exemplary embodiment, the communication network includes one or more first network devices, which are each connected through one or more network links to one or more neighboring network devices. The one or more first network devices and the one or more neighboring network devices are synchronized according to the IEEE 1588 standard entitled “Precision Time Protocol.” Exemplary embodiments of the present disclosure avoid at least some of the disadvantages of the prior art in communication network topology determination.

[0012]According to an exemplary embodiment of the present disclosure, the network topology of a communication network is determined, where the communication network includes one or more first network ...

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Abstract

A network management agent, device or module determine the network topology of a communication network based on at least one neighbor network or end device identity and corresponding network link communication delay collected from, determined by, and stored in a Management Information Base of, at least one first network device of the communication network. Neighbor identities and communication delays are determined according to the IEEE 1588 standard.

Description

RELATED APPLICATIONS[0001]This application claims priority as a continuation application under 35 U.S.C. §120 to PCT / EP2013 / 063003, which was filed as an International Application on Jun. 21, 2013 designating the U.S., and which claims priority to European Application 12172854.7 filed in Europe on Jun. 21, 2012. The entire contents of these applications are hereby incorporated by reference in their entireties.FIELD[0002]The present disclosure relates to determining the topology of a communication network of an industrial process control system, such as a substation automation system.BACKGROUND INFORMATION[0003]In order to discover and determine the topology of a communication network, it may be required that network devices report knowledge of their local topology to a network management device. Several products exist on the market, such as, for example, Hirschmann's HiVision, wherein protocols like ARP (ARP: Address Resolution Protocol), ICMP (ICMP: Internet Control Message Protoco...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): H04L12/24H04L7/00H04L45/02
CPCH04L7/00H04L41/12H04L41/046H04L43/0852Y04S40/00H04L41/052
Inventor KIRRMANN, HUBERT
Owner HITACHI ENERGY LTD
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