Method and device for realizing fault diagnosis

A fault diagnosis and network element technology, applied in digital transmission systems, electrical components, transmission systems, etc., can solve problems such as increased complexity, inability to realize fault detection, simultaneous fault detection of multi-segment links, etc.

Active Publication Date: 2018-08-21
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The following problems exist when implementing the above method: 1. The first node needs to know the TOP view of the entire network to determine the maximum value of TTL=X, which increases the complexity of Switch
2. The above process is usually triggered by the user on demand after the user sees the link connectivity alarm; if the user specifies the maximum value of TTL=X at the same time, the maintenance time and cost of the user will be increased
Especially in a network consisting of tens of thousands of nodes and tens of thousands of connections, on-demand maintenance will greatly increase the maintenance cost
3. When multiple links in the link fail at the same time, the above method cannot realize fault detection
[0005] To sum up, the method for fault diagnosis in related technologies is complex, and there are problems that maintenance and multi-segment link failures cannot be detected at the same time

Method used

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  • Method and device for realizing fault diagnosis
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  • Method and device for realizing fault diagnosis

Examples

Experimental program
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application example 1

[0166] The network element in this application example does not support the outbound packet delivery function and does not include the head and tail nodes according to the version number supported by the device (for example, the version number is less than 6). The application example is used to detect the connectivity of the LSP.

[0167] Figure 9 It is the method flowchart of the first application example of the present invention, as Figure 9 shown, including:

[0168] Step 900, the controller decomposes the connection network involved in the LOC alarm into at least two corresponding network elements and at least one unit link; including: the controller decomposes the unit link that needs path detection, and the unit link can be listed as a link list The unit link is composed of two adjacent NEs: the line between the network node interface (NNI) of the outgoing port of the westbound NE and the NNI of the incoming port of the eastbound NE. One network element, the first po...

application example 2

[0177] The network element in this application example is determined by the version number supported by the device (for example, the version number is less than 6) to determine the support for the packet delivery function of the outbound port. This application example connection includes the first and last nodes. The application example is used to detect the connectivity between VPWS CIPs .

[0178] Figure 11 It is a method flowchart of the second application example of the present invention, such as Figure 11 shown, including:

[0179] This application example controller receives a LOC alarm between VPWS CIPs.

[0180] Step 1100, the controller decomposes the connection network involved in the LOC alarm into at least two corresponding network elements and at least one unit link; including: the controller decomposes the unit link that needs path detection, and the unit link can be listed as a link list The unit link is composed of two adjacent NEs: the line between the ne...

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Abstract

The invention provides a method and a device for realizing fault diagnosis. The method comprises the steps that under the situation that the reported alarming of a telecommunication line is received,the connecting network related to the LOC alarming is divided into at least two corresponding network elements and at least one unit links; complete circuit detection is conducted on each network element and each unit link, obtained through dividing; a fault diagnosis result is generated based on the complete circuits of all network elements and the unit links. The unit link is formed by lines from the network node interface (NNI) of the outlet of the west network element to the NNI of the inlet of the east network element. The invention is advantageous in that the processing process of faultdiagnosis can be simplified, and the fault-diagnosis efficiency can be improved.

Description

technical field [0001] This article involves but is not limited to software-defined network (SDN) technology, especially a method and device for implementing fault diagnosis. Background technique [0002] In a packet transport network (PTN, Packet Transport Network) network, the control plane and the forwarding plane are often implemented on a switching device (Switch). This implementation method determines the complexity of the switching device. On the other hand, the interface between the management plane and the switching device is defined privately by the manufacturer and is opaque. The interface left to the user is a black box without scalability. [0003] figure 1 It is a structural block diagram of an SDN network of related technologies, such as figure 1 As shown, in the SDN network, the control plane is separated from the switching device, and the switching device (Switch) is only responsible for data forwarding. The control plane consists of controllers. The co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/24H04L12/26
CPCH04L41/0631H04L43/0811H04L43/08H04L41/0677H04L41/0604H04L41/40H04L43/20
Inventor 马西照李慧艳
Owner ZTE CORP
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