A method for realizing multiple protection of bearer network and bearer network

A bearer network and multiple protection technology, applied in the direction of data exchange network, digital transmission system, electrical components, etc., can solve the problems of lack of regularity, impossibility, scattered OLP paragraphs, etc., to avoid separation difficulties, investment efficiency and protection efficiency maximized effect

Active Publication Date: 2019-02-26
中国移动通信集团内蒙古有限公司
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] However, for some sections of the network using OLP for overlay protection, because the OLP sections are scattered and lack regularity, it is impossible to realize the protection of the three-way source end to the destination end for key business areas, such as: county-level central stations, etc.

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  • A method for realizing multiple protection of bearer network and bearer network
  • A method for realizing multiple protection of bearer network and bearer network
  • A method for realizing multiple protection of bearer network and bearer network

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Embodiment Construction

[0036] In the embodiment of the present invention, the SDH and PTN are uniformly carried on the OTN, different routing optical cables are established between each core office of the OTN core layer, and finally the shortest path from the source end to the destination end is calculated, and the shortest path is used as a protection path.

[0037] Specifically, the calculating the shortest path from the source end to the destination end includes: calculating a cost value from the source end to the destination end, and obtaining the shortest path from the source end to the destination end according to the calculated minimum cost value;

[0038] Wherein, the calculation of the cost value from the source end to the destination end includes: calculating the cost value from the source end to the destination end according to COST=(∑cost)×Q;

[0039]Here, COST is the total paragraph cost value, cost is the cost value of each paragraph, and Q is the weight value; the paragraph is: the di...

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Abstract

The invention discloses a method for realizing multi-protection of network bearer. The method comprises: uniformly bear SDH and PTN on the optical transport network OTN, establish different routing optical cables between each core office of the OTN core layer, and calculate the source end The shortest path to the destination end is used as the protection path. The present invention also discloses a bearer network that realizes multiple protections. The bearer network includes: SDH, PTN, and OTN; wherein, the SDH and PTN are uniformly carried on the OTN through channels; the OTN includes: a core layer and the aggregation layer, each core office of the core layer has different routing optical cables; the OTN also includes: computing equipment, used to calculate the shortest path from the source end to the destination end, and the shortest path is used as a protection path.

Description

technical field [0001] The invention relates to the protection technology in the transmission network, in particular to a method for realizing multiple protection of the bearer network and the bearer network. Background technique [0002] Currently, the bearer network includes: Synchronous Digital Hierarchy (SDH), Packet Transport Network (PTN), and Optical Transport Network (OTN), etc. Among them, 2G services are mainly carried on SDH , 3G services are mainly carried on the PTN. [0003] The network structures of SDH, PTN, and OTN all include core layer, aggregation ring, and access ring. Specifically, the core layer of SDH is mainly carried by bare optical fibers, the aggregation ring of SDH is generally carried by optical cables, and long-distance sections are carried by OTN The SDH access ring is carried by optical cables; the core layer of PTN is carried by OTN or bare optical fibers, the aggregation ring of PTN is generally carried by OTN or optical cables, and the ac...

Claims

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): H04L12/24H04L12/703H04L45/28
Inventor边德明毕胜王艳秋牛纯志韩华侯英波吴满全李景文王军
Owner中国移动通信集团内蒙古有限公司