Shared protection control method and device of optical data unit (ODU) loop

A technology for optical data unit and shared protection, which is applied in multiplexing system selection devices, selection devices, data exchange networks, etc., can solve problems such as inconvenience in the use process, achieve finer protection granularity, enrich protection methods, and enhance The effect of configurability

Inactive Publication Date: 2011-03-30
ZTE CORP
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0005] At present, there is no standard for shared protection of electrical layer channels. How to realize shared protection in optical layer channels has many solutions. Set the corresponding loop protection channel, the limitation on the loop channel protection will be quite large, it is very inconvenient to use

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  • Shared protection control method and device of optical data unit (ODU) loop
  • Shared protection control method and device of optical data unit (ODU) loop
  • Shared protection control method and device of optical data unit (ODU) loop

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Embodiment Construction

[0043] The basic idea of ​​the present invention is: when protecting the channel service in the optical layer, special protection channels must be set for optical signals of different wavelengths, once the protection channel of the corresponding wavelength fails, the signal of this wavelength cannot be transmitted through the protection channel , which will seriously limit the protection of the protection channel to the service. The present invention proposes to realize the protection control of the ODU shared loop in the electrical layer, which improves the utilization rate of network resources and enhances the configurability of service protection; more detailed The protection granularity of the ODU shared ring enriches the protection methods and provides dedicated shared protection for the optical data unit ODU.

[0044] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail b...

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Abstract

The invention discloses a shared protection control method of an optical data unit (ODU) loop, which comprises the following steps: arranging two virtual channel loops in the ODU loop, wherein one virtual channel loop is used for bearing service transmission, and the other virtual channel loop is used as a virtual protection channel loop; and when an alarm or a fault is detected in the virtual channel loop for bearing services, carrying out virtual channel loop protection control according to the detection result. The invention simultaneously discloses a shared protection control device of the ODU loop, which comprises a setting unit, a detecting unit and a protection control unit, wherein the setting unit is used for setting two virtual channel loops in the ODU loop, one virtual channel loop is used for bearing the service transmission, and the other virtual channel loop is used as the virtual protection channel loop; the detecting unit is used for detecting whether the alarm or fault occurs in the virtual channel loop for bearing the services; and the protection control unit is used for carrying out virtual channel loop protection control according to the detection result. In the invention, the protection granularity of the ODU shared loop is refined and the protection modes are enriched.

Description

technical field [0001] The present invention relates to a loop sharing protection control technology in an optical transport network (OTN, Optical Transport Network), in particular to a method and device for loop sharing protection control based on an optical data unit (ODU, Optical Data Unit) in the OTN. Background technique [0002] As network services have an increasing demand for bandwidth, operators and system manufacturers have been constantly considering the issue of improving service delivery technologies. The evolution of the digital transmission network has also changed from the initial one based on T1 / E1 (a line technology is a rate representation in Pulse Code Modulation (PCM, Pulse Code Modulation) technology. E1 is a European standard, which is also used in my country and supports rate 2048kps; T1 is the North American standard, supporting the rate of 1544kps) the first generation digital transmission network, experienced the second generation digital transmissi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04Q11/00H04B10/20
CPCH04L12/437H04J3/085
Inventor 董均富森
Owner ZTE CORP
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