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Management device, and identification method and storage medium having program thereof stored therein

A technology for managing equipment and programs, applied in electromagnetic wave transmission systems, electrical components, transmission systems, etc., to solve problems such as difficulty in finding the state of an optical transmission system, and impossible to obtain information on the composition of transmission paths.

Active Publication Date: 2018-11-23
NEC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] On the other hand, when it is impossible to communicate with the machines in the transmission path due to the system design in the repeater or branch unit of the submarine cable system, or when it is impossible to obtain the transmission path due to a failure of the communication circuit of the machine in the transmission path It is difficult to find the state of the optical transmission system when the composition information of

Method used

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  • Management device, and identification method and storage medium having program thereof stored therein
  • Management device, and identification method and storage medium having program thereof stored therein
  • Management device, and identification method and storage medium having program thereof stored therein

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Embodiment Construction

[0039] An optical transmission system and a management device according to a first exemplary embodiment of the disclosed subject matter are described with reference to the drawings. figure 1 is a block diagram showing configurations of a management device and an optical transmission system according to the first exemplary embodiment. First, the configuration of an optical transmission system managed by a management device is described.

[0040] Such as figure 1 As shown, the optical transmission system according to the first exemplary embodiment includes an optical transmission / reception device 3 provided in a station house (stationhouse) X, an optical transmission / reception device 4 provided in a station house Y, and connecting optical transmission / reception devices The transmission path 10 of the receiving device 3 and the optical sending / receiving device 4 . The transmission path 10 is mainly composed of optical fibers, but may include devices such as repeaters in additio...

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Abstract

The present invention identifies a transmission route of a transmission path, even when communication with devices within the transmission path of a light transmission system is not possible. This management device is for a light transmission system having a transmission path in which the transmission route length varies depending on transmission routes between first and second light transmission / reception devices, and is provided with a management unit that pre-registers route delay information showing transmission delay time for each of the transmission routes, collects measurement delay time which is transmission delay time of the transmission path measured by the first light transmission / reception device, and identifies the transmission route corresponding to the measurement delay time, on the basis of the route delay information and the measurement delay time.

Description

technical field [0001] The disclosed subject matter relates to a management device and the like of an optical transmission system having a transmission path in which a transmission path length between optical transmission / reception devices is changed by route switching. Background technique [0002] In some cases, the physical transmission route of the optical main signal is changed due to the enhanced function of the optical transmission system, such as the route redundancy of the transmission path caused by route diversity composition or reconfigurable optical add-drop multiplexing (ROADM) function . In the above cases, it is important to obtain information from the optical transmission / reception equipment of the optical transmission system or machines on the transmission path and find out the status of the optical transmission system. [0003] On the other hand, when it is impossible to communicate with the machines in the transmission path due to the system design in th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B10/079H04L29/14H04L45/121H04L69/40
CPCH04B10/079H04L69/40H04L43/0864H04L41/0668H04B10/0795H04L45/121
Inventor 中野雄大
Owner NEC CORP