A cross connection system for implementing SDH service protection switching and automatic recovery

A technology of cross-connection and protection switching, which is applied in the transmission system, digital transmission system, data exchange network, etc. It can solve the problems of affecting the operation of processing functions, slowing down processing speed, and complex processing algorithms, so as to achieve enhanced reliability and self-healing performance, quicker switching time, and simplified management

Inactive Publication Date: 2005-06-01
ALCATEL LUCENT SHANGHAI BELL CO LTD
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Problems solved by technology

[0005] The shortcoming of this implementation method is: since the configuration information of the hardware 300 is generated after being processed by the protocol processing software 101', in the case of an increasingly complex network structure, the protocol processing software 101' will process a large amount of time slot configuration information, business Fault monitoring information and network working status and other data
This makes the processing algorithm of the protocol

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  • A cross connection system for implementing SDH service protection switching and automatic recovery
  • A cross connection system for implementing SDH service protection switching and automatic recovery
  • A cross connection system for implementing SDH service protection switching and automatic recovery

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Embodiment Construction

[0025] figure 2 It is a schematic diagram of the cross-connection system structure applied to SDH service protection switching and automatic recovery of various rate levels according to the present invention. Its cross-connect capacity, cross-level and service protection switching time slot configuration level and time slot number can adapt to various SDH systems Speed ​​grade and cross function that the system needs to realize. The system is composed of a protection switching processing system 100, a cross-connection configuration information interface 200, and a cross-connection system 300.

[0026] The cross connection system 300 includes a cross matrix 320, which can be a time division cross matrix or a space division cross matrix. When it is a space division cross matrix, there are M directions of cross-connection services from or to the group road 310M (M is 1, 2... …Natural number), there are K directions from or to the branch 330K (K is 1, 2...Natural number). When the s...

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Abstract

The crossed connection system for realizing SDH business protection and conversion and automatic restoring includes protection and conversion processing system, crossed connection configuring information interface and crossed connection system. The protection and conversion processing system receives the time interval configuring information, protection configuring information and outer alarm information, processes the information and generates and outputs the crossed connection configuration information to the crossed connection configuring information interface; and the crossed connection system realizes the time interval distribution in routes and branches, protection and conversion, and other functions according to the crossed connection configuring information. The present invention speeds the conversion of SDH service to strengthen the reliability and natural curing of SDH optical transmission system.

Description

Technical field [0001] The invention relates to an SDH (Optical Synchronous Digital Network) digital cross-connection equipment, and more specifically to a cross-connection system that can realize SDH service protection switching and automatic recovery functions. Background technique [0002] Self-healing is one of the most prominent features of SDH networks. The so-called self-healing refers to the ability of the network to automatically switch routes, reconfigure services, and re-establish communications for local failures without manual intervention. Subnet Connection Protection (SNCP) is a self-healing protection method suitable for various complex network topologies and fast switching speed. SNCP adopts 1+1 protection mode, and services are simultaneously transmitted on the working subnet and the protection subnet at the same time. Normally, the receiving end of the subnet connection selects the signal transmitted on the working subnet. When the working subnet connection fai...

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Application Information

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IPC IPC(8): H04L12/24
Inventor 王琦彭松涛
Owner ALCATEL LUCENT SHANGHAI BELL CO LTD
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