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Communication multi-level protection method based on intelligent optical network

An intelligent optical network, multi-level technology, applied in the field of communication networks, can solve the problems of unshared spare resources and low resource utilization, and achieve the effects of improving resource utilization, high transmission bandwidth, and reducing computing time.

Active Publication Date: 2014-03-19
STATE GRID CORP OF CHINA +4
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  • Application Information

AI Technical Summary

Problems solved by technology

Protection is often under the control of local network elements or remote network elements, without the intervention of external network management systems, the protection switching time is very short, but the backup resources cannot be shared within the network range, and the resource utilization rate is low

Method used

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  • Communication multi-level protection method based on intelligent optical network
  • Communication multi-level protection method based on intelligent optical network
  • Communication multi-level protection method based on intelligent optical network

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Embodiment Construction

[0059] An embodiment of the present invention will be further described below in conjunction with the accompanying drawings.

[0060] Such as figure 1 As shown, the nodes in the present invention are information sending and receiving ends, including a single computer, a router, a server combined with a router, and a large-scale data center, and the physical link is an optical fiber link. In this embodiment, taking the router as an example, the network topology model used is an NSFNET network, including 14 routers and 21 links; each link is made up of a pair of unidirectional optical fibers with opposite directions, and each link There are 2 wavelengths on the fiber link, and each router has 2 optical transceivers. The user request arrives according to the Poisson distribution of the parameter β at the average rate, and the duration of the established connection obeys the exponential distribution of the mean value 1 / μ (assuming μ = 1). After the user request arrives, if the c...

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Abstract

The invention relates to a communication multi-level protection method based on an intelligent optical network, and belongs to the technical field of a communication network. The method provided by the invention utilizes programmable and automatic adjustment functions of the intelligent optical network, uses characteristics of large transmission bandwidth and small delay of the optical network, carries out differentiated protection on operation requests with different importance degrees, and solves a problem that breakage of a single optical fiber easily results in severe impacts. On the one hand, the level differentiated protection can provide targeted protection, high-level operations adopt services with a high protection level, low-level operations adopt services with a low protection level, the resource utilization rate is improved, the difficulty in searching a protection path is simplified, and the operation time is reduced; and on the other hand, the utilization rate of the bandwidth is improved through a shared protection function of the medium protection level and the low protection level, and corresponding reserved network resources can also be enabled to carry out dormancy, thereby saving electric energy consumption.

Description

technical field [0001] The invention belongs to the technical field of communication networks, and in particular relates to a communication multi-level protection method based on an intelligent optical network. Background technique [0002] In recent years, WDM optical transmission network has made great progress, both in terms of optical transmission technology and deployment and application of optical transmission network are becoming more and more mature. Considering the large-capacity information carried by the optical network, considering the huge economic loss and serious impact on society caused by communication interruption, robust optical network survivability must be pursued by telecom operators and equipment manufacturers, especially Network designers must first consider the problem. The introduction of intelligent optical network (ION) is a major improvement to traditional optical transport network technology. Intelligent optical network technology represented b...

Claims

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Application Information

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IPC IPC(8): H04B10/032H04Q11/00
Inventor 马伟哲金鑫孟凡博庞东辰刘鹏明毅鲍鑫宋曼瑞曹莹陈岩松范继平刘杨
Owner STATE GRID CORP OF CHINA
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