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A method and device for detecting a shared risk link group

A technology of shared risk links and links, which is applied in the field of detection of shared risk link groups, can solve problems such as difficulties in implementation, and achieve the effect of easy testing and analysis

Active Publication Date: 2019-09-10
ALIBABA GRP HLDG LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, it is difficult to implement the method of judging whether the link group to be tested is in the same shared risk link group based on the polarization characteristics.

Method used

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  • A method and device for detecting a shared risk link group
  • A method and device for detecting a shared risk link group
  • A method and device for detecting a shared risk link group

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Embodiment Construction

[0047] In order to enable those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described The embodiments are only some of the embodiments of the present application, but not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the scope of protection of this application.

[0048]The transmission medium of the link group in the general optical network is optical fiber. In the manufacturing process of optical fiber, various thermal processes such as precipitation, melting, and wire drawing will cause local thermal disturbance of the material, resulting in microscopic inhomogeneity in the refractive ind...

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Abstract

The present application provides a method and device for detecting a shared risk link group. The method includes: respectively recording a first curve and a second curve of the power corresponding to the backlight in the first link to be tested and the second link to be tested as a function of time; calculating the first curve and the second curve The similarity value of the curve, and based on the similarity value, it is judged whether the first link under test and the second link under test are in the same shared risk link group. A method and device for detecting a shared risk link group provided in an embodiment of the present application, by testing the power characteristics of the backlight of the detection light in the link to be tested, and judging the link group to be tested based on the one-dimensional power characteristic Whether they are in the same shared risk link group is relatively simple in practical applications.

Description

technical field [0001] The present application relates to the technical field of optical network communication, in particular to a method and device for detecting a shared risk link group. Background technique [0002] With the continuous development of optical network communication technology, various new types of optical network services are also emerging, such as cloud computing, video on demand, wavelength rental, optical layer virtual private network and so on. While these new types of optical network services bring convenience to people's lives, they also impose stricter requirements on the reliability of optical networks. In order to enhance the reliability of the optical network, generally a backup path can be set for the main transmission path in the optical network. When the main transmission path in the optical network fails, the optical network services on the main transmission path can be switched to the backup path to ensure the normal operation of the optical...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B10/077
CPCG01M11/00H04B10/0731H04B10/0775H04B10/07955
Inventor 陈秀忠谢崇进庞俊英
Owner ALIBABA GRP HLDG LTD
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