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Method for detecting single-channel fault of ring-type network

A network and ring technology, applied in the field of Ethernet applications, can solve the problems of inability to detect link failures, inability to distinguish single-channel failures and common failures, etc., and achieve the effect of rapid positioning

Inactive Publication Date: 2008-12-03
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method can effectively detect faults between links, but it cannot distinguish between single-pass faults and common faults, let alone detect in which direction a link fault occurs when a single-pass fault occurs, and in a ring network, each network element needs maintenance Sending frequency of heartbeat information

Method used

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  • Method for detecting single-channel fault of ring-type network
  • Method for detecting single-channel fault of ring-type network
  • Method for detecting single-channel fault of ring-type network

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Embodiment Construction

[0027] figure 1 It is a schematic diagram of the workflow of the present invention. As shown in the figure, the following steps are included:

[0028] In step S100, one network element in the ring network is selected as a control network element, and other network elements in the ring network are selected as cooperative network elements.

[0029] Step S101 , the control network element periodically sends a status query message to the network elements on both sides, and the cooperative network element forwards the message to the next network element along the message sending direction after receiving the status query message. When the network is normal, the status query message is sent from the port on one side of the control network element, transmitted through the cooperative network elements in turn, and finally returned to the other port of the control network element, thus completing a check of the ring network status.

[0030] Step S102, the cooperative network element ...

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Abstract

The raised method for detecting single-channel fault in a ring network comprises: 1. selecting one network element as the control element in the loop network, and others as the cooperative elements; 2. using the control network element to dual-directional detect the link and determine whether there is single-channel fault; 3. if there is fault in the loop network, the control network element detects the port position of the failed network element. This invention can just traverse the loop network just one time to fast determine the fault point.

Description

technical field [0001] The invention relates to the application field of the Ethernet, in particular to a method for detecting a single-pass fault in a ring network, which can effectively protect the Ethernet of the ring network. Background technique [0002] With the development of communication technology, Ethernet is more and more used in the construction of metropolitan area network and campus network to build a highly reliable elastic ring network due to its simplicity, low cost and wide application. In practical applications, a single-pass fault may occur in the loop due to a problem with the device hardware or application software, that is, the link in one direction is normal, but the link in the other direction is unreachable. Untimely detection of single-pass faults will affect network applications, and improper handling may even cause unidirectional loops in the link, paralyzing the entire network. [0003] At present, the commonly used one-way fault detection met...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/26H04L12/42
CPCH04L12/437H04L43/0811
Inventor 吴克巍
Owner ZTE CORP