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Method for maintaining terminal-to-terminal in WDM system

A wavelength division multiplexing and system-side technology, applied in the field of optical network communication, can solve problems such as inability to meet end-to-end path application requirements, rough path level description, etc., and achieve the effect of convenient network maintenance

Inactive Publication Date: 2006-08-30
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] The purpose of the present invention is to provide an end-to-end maintenance method for a wavelength division multiplexing system, so as to overcome the problems in the prior art that the optical network system path level description is rough and cannot meet the application requirements of the end-to-end path

Method used

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  • Method for maintaining terminal-to-terminal in WDM system
  • Method for maintaining terminal-to-terminal in WDM system
  • Method for maintaining terminal-to-terminal in WDM system

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Embodiment Construction

[0048] The core of the present invention is that in the wavelength division multiplexing system, on the basis of the description of the system path level suggested by the existing standard, different path levels are divided according to the corresponding characteristics of the layer in a more fine-grained manner, so that users can Obtain all objectively existing trail levels in the network, for example, divide OMS Trail (optical multiplex section trail) into N layers according to the number of wavelength channels it accommodates, and client trail (customer layer trail) according to the access of client layer services Rate further divides it into M layers. Then, perform end-to-end maintenance and management on the WDM system according to the paths of these different levels.

[0049] Those skilled in the art know that in existing standards, the wavelength division multiplexing system can be divided into multiple layers, namely: client layer, optical channel layer, optical multip...

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Abstract

This invention discloses an end to end protection method for a WDM system, in which, the system includes dividing different hierarchies of the system to sub-hierarchies with pre-set numbers according to a pre-set way and setting up a route list of the sub-hierarchies to carry out end-to-end maintenance to the physical links and NE devices on the route based on the list.

Description

technical field [0001] The invention relates to the technical field of optical network communication, in particular to an end-to-end maintenance method for a wavelength division multiplexing system. Background technique [0002] With the development of communication technology, new services are constantly emerging, especially the rapid rise of IP services, which has led to an exponential increase in the amount of global information. Communication services have shifted from traditional single telephone services to broadband services represented by high-speed IP data and multimedia. The bandwidth and capacity of communication networks place higher and higher demands. The huge potential bandwidth of optical fiber and the mature application of WDM (Wavelength Division Multiplexing) technology have made optical fiber communication a mainstream technology supporting communication transmission networks, and optical communication networks have become the basic platform of modern com...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04J14/02H04L12/24
Inventor 黄海荣
Owner HUAWEI TECH CO LTD
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