Reliable routing and reliability evaluation method for optical fiber communication ring network

An optical fiber communication ring network and optical fiber ring network technology, applied in the field of optical communication, can solve problems such as node failure and multiple failures, and achieve the effect of high accuracy

Active Publication Date: 2021-03-16
STATE GRID FUJIAN ELECTRIC POWER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are still node failures and multiple failures, so it is necessary to calculate and evaluate the reliability performance of the optical cable ring network when all these failures may occur

Method used

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  • Reliable routing and reliability evaluation method for optical fiber communication ring network
  • Reliable routing and reliability evaluation method for optical fiber communication ring network
  • Reliable routing and reliability evaluation method for optical fiber communication ring network

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Embodiment Construction

[0037] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0038] It should be pointed out that the following detailed description is exemplary and is intended to provide further explanation to the present application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

[0039] It should be noted that the terminology used here is only used to describe specific implementations, and is not intended to limit the exemplary implementations according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprising" and / or "comprising" are used in this specification, they mean There are features, steps, operations, means, components and / or combi...

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Abstract

The invention relates to a reliable routing and reliability evaluation method for an optical fiber communication looped network. The method comprises the following steps: S1, taking any two virtual links of the looped network as a cut set; S2, searching K shortest optical cable paths for the end node pair of each link of the looped network on the optical cable physical network; S3, mapping each link in the cut set obtained in the step S1 to one of the K optical cable paths of the cut set, enabling all links in any cut set not to pass through the same optical cable, and minimizing the total number of optical cable segments passed by all looped network links of the looped network; S4, establishing a reliability model of the looped network link by using a multi-component equivalent method, and calculating the availability, the failure rate and the repair rate of each link of the looped network; and S5, establishing a looped network reliability model, and calculating the reliability of theoptical fiber looped network by using a reliability block diagram method. The method can improve and evaluate the reliability when the optical fiber communication ring network is mapped to the bottomlayer optical cable network.

Description

technical field [0001] The invention relates to the technical field of optical communication, in particular to a reliable routing and reliability evaluation method of an optical fiber communication ring network. Background technique [0002] The optical fiber communication ring network has the advantages of simple implementation and strong survivability. It can provide two routing paths in opposite directions for any two nodes on the ring, which are used as the working and backup routes respectively. When the working route fails, the service is switched to the protection route. Realize the rapid recovery of business, so it has a large number of applications in the backbone and metropolitan area network. For example, the SDH self-healing ring in the optical fiber communication ring network can perform automatic protection switching when a single link failure occurs, and resume service transmission in a very short time (50ms). [0003] The optical fiber communication ring net...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/20G06Q10/06G06F119/02
CPCG06F30/20G06Q10/06393G06F2119/02
Inventor 姚文杰施加轮陈新星林烨婷陈爽陈思颖张昊陈凯强
Owner STATE GRID FUJIAN ELECTRIC POWER CO LTD
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