Bandwidth updating method and control flow for synchronous digital system

A bandwidth upgrade and single-board technology, which is applied in the transmission system, electrical components, and data exchange through path configuration, can solve the problems of heavy workload of service reconfiguration, complicated operation of the upgrade method, and inability to complete the upgrade. The effect of small loss, easy operation of speed upgrade, and improvement of work reliability

Inactive Publication Date: 2008-11-26
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] 1. Creating a new STM-64 ring cannot use the slots used by the original STM-16 ring. If there are no free slot resources available, the upgrade cannot be completed, and the slots used by the STM-16 ring will eventually be used Released, but not available for upgraded STM-64 rings
[0006] 2. This upgrade method needs to reconfigure the services of the STM-16 ring on the new STM-64 ring. If the original services are many and complex, the workload of service reconfiguration will be large. In addition, during the service cutover, The damage to the business is also greater
[0007] In short, the existing upgrade method is complicated to operate and has a large business loss

Method used

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  • Bandwidth updating method and control flow for synchronous digital system
  • Bandwidth updating method and control flow for synchronous digital system
  • Bandwidth updating method and control flow for synchronous digital system

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Embodiment Construction

[0038] Below according to accompanying drawing and embodiment the present invention will be described in further detail:

[0039] In actual SDH networking, ring network and linear network are commonly used, and complex networks are generally realized by combining and changing these two networking forms. The present invention is aimed at ring network and linear network, Each will be described in detail.

[0040] In a ring network, in order to improve network reliability, MSP ring protection is generally configured. Multiplex section ring protection refers to completing a series of protocol handshake processes with the help of K bytes in the multiplex section in the overhead, and performing APS (Automatic Protection Switching, automatic protection switching) switching, so that the service signals originally transmitted on the damaged optical fiber Transfer to the protection channel (generally the opposite direction of the faulty route on the ring) for transmission, so that the ...

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Abstract

The invention relates to a method for upgrading the bandwidth of synchronous digital system of digital information communication and the relative control process, which utilizes the multiplex section protection of synchronous digital system network to online upgrade the circuit single board of network unit; for the looped network, when the multiplex section switch protection occurs between network units, the related circuit single board should be replaced instantly; for the linear network, after instantly replacing the circuit single board of protective channel and when the multiplex section switch protection occurs, replacing the circuit single board of working channel; for the linear network; when the multiplex section switch protection occurs, replacing the circuit single board of working channel, recovering the working channel, and replacing the circuit single board of protective channel; and the replaced circuit single board transmits the information of upgrading the speed of circuit single board to the APS switch protocol. The inventive operation of upgrading speed is simple with lower loss of service.

Description

technical field [0001] The invention relates to the transmission of digital information, in particular to a bandwidth upgrading method. Background technique [0002] With the rapid development of IP services, there are more and more demands for bandwidth upgrade of SDH (Synchronous Digital Hierarchy, Synchronous Digital System) network, such as upgrading the original STM-16 SDH network to STM-64 SDH network , and because of the small business volume in the early stage of network construction, in order to save investment, telecom operators hope to use low-speed circuit boards such as STM-4 first, and then replace them with higher-speed circuit boards when the business volume increases, etc. It is required that the bandwidth can be upgraded conveniently, and the less impact the upgrade has on the original business, the better. [0003] At present, most SDH devices do not support online upgrade of bandwidth. For example, if an STM-16 ring is completely upgraded to an STM-64 ri...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B1/74H04L12/24H04L12/42H04J3/06
Inventor 杜志华涂敏海崔秀国
Owner HUAWEI TECH CO LTD
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