Ethernet-based network topology integrity diagnosis method and system

A technology of network topology and diagnosis method, which is applied in the field of network topology integrity diagnosis based on Ethernet, and can solve problems such as lack of network topology integrity, insufficient direct diagnosis method, and inability to monitor

Inactive Publication Date: 2018-11-23
CSR ZHUZHOU ELECTRIC LOCOMOTIVE RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0009] In view of this, the object of the present invention is to provide a network topology integrity diagnosis method and system based on Ethernet, to solve the problem that the existing network topology integrity diagnosis method is not direct enough to monitor the network failure directly caused by the disconnection of the physical connection. Due to the lack of topology integrity, the technical problem of not being able to directly obtain the communication status information of related network devices

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  • Ethernet-based network topology integrity diagnosis method and system
  • Ethernet-based network topology integrity diagnosis method and system
  • Ethernet-based network topology integrity diagnosis method and system

Examples

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Embodiment 1

[0052] as attached figure 1 As shown, a specific embodiment of an Ethernet-based network topology integrity diagnosis method. The method for diagnosing network topology integrity based on Ethernet specifically includes the following steps:

[0053] S101) The diagnostic server 2 analyzes and saves the network topology input from the outside;

[0054] S102) The diagnostic server 2 collects network port status information of the switching device 4 according to the analyzed network topology;

[0055] S103) Diagnosis server 2 diagnoses the status of all switching devices 4, terminal devices 3 and connection cables 6 in the network topology according to the collected network port status information;

[0056] S104) The diagnosis server 2 packages the result of this diagnosis according to the protocol and sends it to the device that needs the topology integrity state;

[0057] S105) Periodically execute all the operations from step S102 to step S104 above.

[0058] When the status...

Embodiment 2

[0068] as attached figure 2 And attached image 3 As shown, a specific embodiment of an Ethernet-based network topology integrity diagnosis system includes: a backbone network 1 , and a diagnosis server 2 and a terminal device 3 connected to the backbone network 1 . The backbone network 1 further includes two or more switching devices 4 , and the switching devices 4 are connected by connecting cables 6 , and the connecting cables 6 are connected to network ports 5 of the switching devices 4 .

[0069] The physical layer and the data link layer of the diagnostic server 2, the terminal device 3 and the switching device 4 all conform to the IEEE802.3 standard.

[0070] The switching device 4 is a management switching device, and the processor of the switching device 4 runs the program of network port status collection and packet sending. As a typical specific embodiment of the present invention, the switching device 4 further includes a router and / or a managed switch.

[0071...

Embodiment 3

[0075] as attached Figure 4 As shown, the switching device 4 includes a switch 1, a switch 2, a switch 3, a switch 4, a switch 5 and a switch 6. When it is found that the network port 5 at one end of the connection cable 6 connected between the switch two and the switch four is not physically connected, the connection cable 6 is marked as color one, such as red (as attached Figure 4 As shown by the dotted line in the center), it means that the communication at both ends of the connection cable 6 is completely disconnected.

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Abstract

The invention discloses an Ethernet-based network topology integrity diagnosis method and system. The diagnosis method comprises the following steps that S101. a diagnosis server parses and stores a network topology input externally; S102. the diagnosis server collects and exchanges equipment port state information according to the parsed network topology; S103. the diagnosis server diagnoses states of all exchange equipment, terminal equipment and connection cables in the network topology according to collected port state information; S104. the diagnosis server packages and sends the diagnosis result to equipment requiring topology integrity state according to a protocol; and S105. all operations of S102-S104 are performed periodically. The existing network topology integrity diagnosis method is not direct enough, cannot detect deficiency of network topology integrity directly caused by cut off of physical connection, and cannot acquire communication state information of related network equipment directly.

Description

technical field [0001] The invention relates to the technical field of network communication, in particular to an Ethernet-based network topology integrity diagnosis method and system. Background technique [0002] At present, in most industrial control systems, there is a set of communication networks for communication between devices, such as: CAN communication network in the automotive field, WTB and MVB communication networks in the rail transit field, and the very popular industrial Ethernet. control network, etc. During the operation of these network systems, a large amount of status data and control data will be transmitted. Since these data play an extremely important role in the operation of the system, it is very necessary to diagnose the integrity of the network topology of the above-mentioned network systems. [0003] Industrial control systems will transmit a large amount of important data such as status, diagnosis, and control during operation. When the system...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/24H04L12/26
CPCH04L41/12H04L43/06H04L43/08
Inventor 唐鹏辉邹智荣唐军莫云边汤贵罗钦洋高英明
Owner CSR ZHUZHOU ELECTRIC LOCOMOTIVE RES INST
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