Protection method of transmission service

A business and main business technology, applied in the field of communication, can solve the problems of low business rate, unprotected, business interruption, etc., to achieve the effect of improving protection ability, increasing construction cost, and ensuring effective utilization

Inactive Publication Date: 2008-03-12
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

These protection methods cannot be protected if the service is interrupted after both the protection and working channels fail.
[0004] Patent CN200410054858.2 proposes a protection method with one working channel and multiple protection channels for this situation. This method improves the reliability of services that need to be protected, but the transmission rate of services that need to be protected is too low. In the case of protection, it will greatly increase the cost of network construction

Method used

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  • Protection method of transmission service
  • Protection method of transmission service
  • Protection method of transmission service

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Embodiment Construction

[0025] Below according to accompanying drawing and embodiment the present invention will be described in further detail:

[0026] The main idea of ​​the present invention is: define n (n>1) services as a group, specify m (m>1) paths between the source end and the sink end of this group of services as the protection of the working paths of this group of services path, as shown in Figure 1. Under normal circumstances, the service source sends service signals to the working path, and sends additional service signals on the protection path. When a failure of a working path is detected, the extra service on a path with normal service signals in the protection path is cut off. The transmission of the main service signal on the failed working path is realized through the protection path. In this method, as long as no more than m paths (including working paths and protection paths) fail at the same time, services can all be protected.

[0027] As shown in Figures 2 and 3, the method...

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Abstract

A transmission services' protection method comprises following steps as A. a plurality of the paths are defined as one group which is deemed as the operating path; also, a plurality of the paths are defined between the source end and sink end of the group of the operating path as the protection path; the service source end sends the service signals to the operating path and the additional service signals are transmitted via the protection path; B. When the failure of a operating path is detected, disconnecting the additional service transmission via a protection path with the normal service signal and the protection path is used to send the main service signals from the failed operating path. The utility model improves the service protective capability and network's self-recovery capability. Also, the bandwidth is effectively used and cost is saved.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a method for protecting transmission network services. Background technique [0002] In today's information society, the quality requirements for information services are getting higher and higher, and the types of services are also diverse. Synchronous Digital Hierarchy (SDH: Synchronous Digital Hierarchy) and Synchronous Optical Network (SONET: Synchronous Optical Network) are hot spots in the application of transmission technology today. As the transmission technology of the telecommunications backbone network, SDH / SONET considers the reliability of the network when planning and designing, and includes a series of protection technologies in the system: Sub-Network Connection Protection (SNCP: Sub-Network Connection Protection), multiplexing Segment protection (MSP: Multiplex Section Protection) and so on. These protection technologies enable the user's business to be s...

Claims

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Application Information

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IPC IPC(8): H04L12/28H04L1/22H04L12/24
Inventor 匡天祺
Owner ZTE CORP
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