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Method for regulating tunnel service of synchronous digital hierarchy network

A synchronous digital system and service adjustment technology, applied in the field of optical transmission, can solve problems affecting users' normal services and service interruptions, and achieve the effect of shortening service interruption time and improving performance

Inactive Publication Date: 2008-11-05
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because this traditional method adjusts the crossover or path in both the space-division cross-connect module and the time-division cross-connect module, the service interruption time caused by service adjustment will be much longer than 50ms, which will easily cause service interruption and affect the normal business of users

Method used

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  • Method for regulating tunnel service of synchronous digital hierarchy network
  • Method for regulating tunnel service of synchronous digital hierarchy network
  • Method for regulating tunnel service of synchronous digital hierarchy network

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] In this embodiment, the system first receives a service under a non-protected tunnel (that is, the next TU-level service from AU1 to AU2), and after the tunnel service is successfully configured, it receives an SNCP protected tunnel service. The service adjustment command (that is, AU1 and AU2 form a mutual protection tunnel), the specific adjustment method is:

[0027] Step 1: Receive non-protected tunnel service, that is, the next TU-level service from AU1 to AU2. Because it is the first configuration, there is no fixed tunnel service point configured in the time division cross-connect module, so proceed to the next step. Before this step, a unique service identifier can also be configured for each non-protection tunnel service.

[0028] Step 2: Allocate an idle position in the time-division cross-connect module to the tunnel service, mark it as a fixed tunnel service point of the tunnel service, and use the service identifier of the tunnel service to identify the fix...

Embodiment 2

[0033] In this embodiment, when the system receives a service adjustment command to adjust the current SNCP protection tunnel service to a non-protection tunnel service, the corresponding adjustment method is: search for the fixed tunnel service point of the SNCP protection tunnel service, and place it in the space division cross-connect module Just delete the SNCP space division protection crossover to the fixed tunnel service point of the tunnel service.

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Abstract

The invention discloses a tunnel service regulation means, including: (1) establishing fixed tunnel service points, for each tunnel service, in a time-division cross module; (2) under the service collocation command, allocating one or two space division cross to fixed tunnel service points of the current tunnel service in the space division cross module, and allocating a time-division cross passing through the fixed tunnel service points of the current tunnel service in the time-division cross module; (3) after receiving the tunnel service regulation command, regulating cross or route of the corresponding tunnel service in the space division cross according to the command, and maintaining the cross or route of the tunnel service in the time-division intercross module to be constant. The use of this invention can greatly shorten the service intermittent disconnection time caused by the SDH tunnel regulation, and controls it within 50ms (while that of the traditional method totally greatly exceed 50ms), thereby greatly improving performance of user service.

Description

technical field [0001] The invention relates to the field of optical transmission, in particular to a tunnel service adjustment method of a synchronous digital system network. Background technique [0002] Optical transmission networks, including transmission networks such as WDM (Wavelength Division Multiplexing), SDH (Synchronous Digital Hierarchy, Synchronous Digital Hierarchy), and SONET (Synchronous Optical Network, Synchronous Optical Network), have been widely used in the telecommunications field. Recently, with the development of ASON (Automatic Switch Optical Network, automatic switching optical network), the application of the tunnel service is also more and more extensive. During the application process, the user needs to adjust the path and crossover of the tunnel service. In the prior art, the crossover or path of the current tunnel service in the space-division cross-connect module and the time-division cross-connect The tunnel service is adjusted to SNCP prot...

Claims

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Application Information

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IPC IPC(8): H04Q11/00H04L12/56H04L12/46H04L12/701
Inventor 涂晓平
Owner ZTE CORP
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