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OTN switching method and device and equipment and storage medium

A technology of protection switching and link switching, which is applied in the field of optical communication, can solve the problems of long switching time, total switching time, and increased OTN network bandwidth usage, so as to reduce switching time and increase usage

Active Publication Date: 2020-05-08
SHANGHAI SINO TELECOM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the method of the prior art, because the serial execution method switches one of the main low-order services preferentially, and sets a waiting time for other groups of low-order services, the total protection switching time increases as the number of groups of low-order services increases. Linear growth, the total switching time will be longer, and it is difficult to meet the requirement that the service recovery time is less than 50 milliseconds; due to the limitation of the OTN network bandwidth in the parallel execution mode, it is impossible to switch each group of low-order services at the same time, which not only increases the OTN network. Bandwidth usage, and it takes a long time to complete the switching of each group of low-order services

Method used

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  • OTN switching method and device and equipment and storage medium
  • OTN switching method and device and equipment and storage medium

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] figure 1 It is a flow chart of an OTN switching method in Embodiment 1 of the present invention. This embodiment is applicable to the case of switching multiple groups of low-order services in an OTN network. This method can be performed by an OTN switching device. The device It can be realized by means of software and / or hardware, and integrated in an electronic device that executes the method. In this embodiment, the electronic device that executes the method can be an electronic device such as a computer, a tablet computer, or a smart phone. Specifically, refer to figure 1 , the method specifically includes the following steps:

[0029] S110. Converge at least one group of low-order services into high-order client-side services.

[0030] Wherein, the low-order service is a client-side signal, which may be a low-rate service such as SDH, Ethernet or OTN service. It should be noted that the low-order services involved in the embodiment of the present invention may b...

Embodiment 2

[0059] Figure 5 It is a schematic structural diagram of an OTN switching device in Embodiment 2 of the present invention. The device can execute the OTN switching method involved in the above embodiment, and the device can be implemented by means of software and / or hardware. Specifically, refer to Figure 5 , the device includes: a low-order service aggregation module 510 , a protection switching mechanism establishment module 520 and a switching module 530 .

[0060] Among them, the low-order service aggregation module 510 is used to aggregate at least one group of low-order services to high-order client-side services;

[0061] A protection switching mechanism establishment module 520, configured to establish at least one protection switching mechanism within the high-order client-side service;

[0062] The switching module 530 is configured to switch the link between the high-order client side and a high-order line backup side according to the protection switching mechani...

Embodiment 3

[0069] Embodiment 3 of the present invention provides an electronic device and a readable storage medium. Image 6 It is a block diagram of electronic equipment used to realize the OTN switching method of the embodiment of the present invention, such as Image 6 Shown is a block diagram of an electronic device according to an OTN switching method according to any embodiment of the present invention. Electronic device is intended to represent various forms of digital computers, such as laptops, desktops, workstations, personal digital assistants, servers, blade servers, mainframes, and other suitable computers. Electronic devices may also represent various forms of mobile devices, such as personal digital processing, cellular telephones, smart phones, wearable devices, and other similar computing devices. The components shown herein, their connections and relationships, and their functions, are by way of example only, and are not intended to limit implementations of the invent...

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Abstract

The embodiment of the invention discloses an OTN switching method and device, equipment and a storage medium. The method comprises the following steps: converging at least one group of low-order services to high-order client side services; establishing at least one protection switching mechanism at the high-order client side; and when a switching triggering condition is received, switching a linkbetween the high-order client side and a high-order line standby side according to the protection switching mechanism. According to the scheme of the embodiment of the invention, switching of multiplegroups of low-order services in the OTN network is realized, the use of network bandwidth is not increased while the switching time consumption is reduced, and the problem that the switching time isrelatively long due to the fact that each low-order service needs to be switched in the prior art is solved.

Description

technical field [0001] Embodiments of the present invention relate to the technical field of optical communication, and in particular, to an OTN switching method, device, equipment, and storage medium. Background technique [0002] Optical Transport Network (OTN) is widely used in the backbone transport network. It is based on WDM technology and is fully backward compatible. It can be used with Synchronous Digital Hierarchy (SDH) and WDM (Wavelength Division Multiplexing (WDM) equipment integration provides large-scale multiplexing, crossover and configuration, and significantly improves the adaptation and transmission efficiency of transmission networks for high-bandwidth data. Once the optical fiber of the OTN network is damaged, a large number of services will be interrupted. Therefore, we must improve the survivability of the optical transport network. One measure of network survivability is switching performance. Generally, the industry stipulates that the service recov...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04Q11/00H04B10/032
CPCH04B10/032H04Q11/0062H04Q2011/0079H04Q2011/0081
Inventor 王凡苗洪庆庄云飞吴志远谢虎李琳
Owner SHANGHAI SINO TELECOM TECH
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