Method for checking multiplex section state

A multiplexing section and status technology, applied in the direction of correct operation test, electromagnetic wave transmission system, electrical components, etc., can solve problems such as switching failures that cannot be solved, and achieve the effect of reducing business loss and damage

Inactive Publication Date: 2006-12-06
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The APS protocol itself cannot solve the switching failur

Method used

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  • Method for checking multiplex section state
  • Method for checking multiplex section state
  • Method for checking multiplex section state

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Embodiment Construction

[0031] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0032] The implementation idea of ​​this technical solution is: through each node, information such as its own multiplex section status and the local highest priority request is diffused to the subnet on the ring, and each node has information such as the multiplex section status of all nodes in a subnet surface. Each node can determine its own correct state according to the highest priority request list of all nodes it owns, and use it to check whether the state of all nodes in the current subnet is correct, and correct it if it finds an error.

[0033] First of all, the status information of the multiplex section needs to be broadcast regularly. The purpose of the regular broadcast is to enable each network element to have an overall overview, and to know the correct status of the full ring according to the switching request of the ...

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Abstract

This invention discloses a method for checking a multiplex segment state including the following steps: every nexus spreads its own multiplex segment state and local maximum priority request information in a ring subnetwork to make it have the state information list of all nexuses and any other one nexus request to determine its own correct state according to its owned list and check if their conversion state is correct and to correct them if finding any mistakes. This invention also discloses a methodf or exercising to start checking such states by conversion at fixed time and finishes the test of correctness of the said nexus attribute parameter and its state.

Description

technical field [0001] The invention relates to a multiplex section protection switching method of a transmission system, in particular to a method for checking the state of a multiplex section. Background technique [0002] The multiplex section protection switching protocol APS (Auto Protection Switching) of transmission equipment is clearly defined in ITU-T G.841 of the International Telecommunication Union. Multiplex section protection switching has always been a relatively weak link in the transmission system, because it is a real-time fast dynamic protocol process, which is restricted by whether the multiplex section attribute parameter configuration is correct and the stability of the control software and hardware. Any momentary failure of any link on the multiplex section ring may cause switching failure. The common reasons for the failure of multiplex section switching include: incorrect configuration or loss of multiplex section attribute parameters, abnormal K-by...

Claims

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Application Information

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IPC IPC(8): H04B10/12H04B10/08H04L1/24H04L29/06H04B10/032
Inventor 孙俊柏
Owner HUAWEI TECH CO LTD
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