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Processing method and protection device for controlling protection switching range in optical transport network

A technology for controlling protection and protecting channels, applied in the field of optical communication, to achieve the effect of reducing the probability of unnecessary switching

Active Publication Date: 2016-10-05
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, when a fault occurs between network element node A and network element node B, the downstream protection domain 1 and protection domain 2 should not be switched, therefore, the method of the prior art will often generate unnecessary switching

Method used

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  • Processing method and protection device for controlling protection switching range in optical transport network
  • Processing method and protection device for controlling protection switching range in optical transport network
  • Processing method and protection device for controlling protection switching range in optical transport network

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Embodiment Construction

[0036] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0037] figure 2 It is a schematic flowchart of Embodiment 1 of the processing method for controlling the protection switching range in the OTN of the present invention, as shown in figure 2 As shown, the method of the present embodiment includes:

[0038] S201: The working channel detection unit and the protection channel detection unit of the...

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Abstract

Embodiments of the present invention provide a processing method and a protection device for controlling the range of protection switching in an optical transport network. The protection control unit sets different delay times for the two detection units according to different upstream service status indications. The detection unit reports its status information to the protection control unit according to preset rules, and the protection control unit controls the switching of the working channel and the protection channel according to the status information, reducing the probability of unnecessary switching.

Description

technical field [0001] Embodiments of the present invention relate to optical communication technology, and in particular to a processing method and protection device for controlling protection switching range in an optical transport network. Background technique [0002] As the optical transport network (Optical Transport Network, hereinafter referred to as: OTN) technology is more and more widely used, the protection of service data transmitted by using the OTN technology becomes increasingly important. [0003] Due to the complexity of the operator's network, there are more and more application scenarios for cascading protection. In the cascading protection scenario, if the upstream service fails, the protection switching should only take effect in the upstream, and the downstream protection domain should not be switched. , so that the OTN equipment can minimize the service transmission time consumed by switching. [0004] In the prior art, the method of setting the swit...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B10/032
CPCH04B10/032
Inventor 雷鸣邓勇强
Owner HUAWEI TECH CO LTD
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