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Service transmission management method, device and system for subnet connection protection link

A technology for protecting links and service transmission, applied in the field of communication, can solve problems such as bandwidth waste of protection channels, and achieve the effect of improving bandwidth utilization

Active Publication Date: 2022-08-02
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this way, when the working channel is not faulty, the bandwidth on the protection channel is occupied to transmit the main service, but the main service transmitted by the protection channel is not accepted, which causes a waste of protection channel bandwidth.

Method used

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  • Service transmission management method, device and system for subnet connection protection link
  • Service transmission management method, device and system for subnet connection protection link
  • Service transmission management method, device and system for subnet connection protection link

Examples

Experimental program
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Effect test

Embodiment 1

[0027] In order to solve the problems of bandwidth waste and low bandwidth utilization in the existing SNCP networking, this embodiment provides a service transmission management method for connecting a protection link of a subnet. Please refer to figure 1 , including:

[0028] In step S101, a node at one end of the subnet connection protection link is selected as the master control node.

[0029] Specifically, for an SNCP link, when the main service is transmitted on the SNCP link, if the transmission channel needs to be switched, in order to ensure the uniqueness of the switching processing of the main service transmission channel, the node at one end of the SNCP link can be selected. As the master control node, the master control node determines whether switching processing is required, and initiates the switching processing to ensure that the switching decision is executed on the device where the master control node is located, thereby avoiding decision errors in the switc...

Embodiment 2

[0050] In order to solve the problems of bandwidth waste and low bandwidth utilization in the existing SNCP networking, this embodiment provides a service transmission management device for connecting a protection link of a subnet. Please refer to figure 2 , which specifically includes: a selection module 21 , a service management module 22 , a detection processing module 23 , a first switching processing module 24 and a second switching processing module 25 .

[0051] The selection module 21 is used to select one end node of the subnet connection protection link as the main control node, which specifically includes: for the SNCP link, when the main service is transmitted on the SNCP link, if the transmission channel needs to be switched, in order to ensure The uniqueness of the switching processing of the main service transmission channel, the node at one end of the SNCP link can be selected as the master control node, and then the master control node initiates the switching ...

Embodiment 3

[0069] This embodiment provides a service transmission management method for a time-division service SNCP link, where the time-division service is the primary service, and specifically includes:

[0070] When neither the working channel nor the protection channel fails, the master control node selects the working channel to carry the time-division service and transmit the time-division service stream. The bandwidth of the working channel can be set according to the service conditions and the bandwidth of the link. The bandwidth information of the link can be obtained by setting a signaling channel between the master node and the controlled node, and establishing the signaling communication of the SNCP interaction between the two ends through the information channel. On this signaling channel, the master node and the controlled node at both ends of the SNCP can negotiate the bandwidth occupancy on the link, and optimize the time-division bandwidth occupancy on the link according...

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Abstract

The service transmission management method, device and system for a subnet connection protection link provided by the embodiments of the present invention, the method selects one end node of the subnet connection protection link as the main control node; when the work on the link is When neither the channel nor the protection channel fails, the working channel is selected to carry the main service, and the protection channel is selected to carry the non-main service; when the working channel is faulty, a switching processing command is generated, and the switching processing command is executed and broadcast. The other node side in the connection protection link receives and executes the switching processing instruction. That is, when neither the working channel nor the protection channel fails, the working channel is selected to carry the main service, and the protection channel is selected to carry the non-main service. In the prior art, the working channel and the protection channel carry the main service at the same time, which improves the bandwidth utilization rate.

Description

technical field [0001] The present invention relates to the field of communications, in particular to a service transmission management method, device and system for connecting a protection link of a subnet. Background technique [0002] SNCP (Sub-network Connection Protection) refers to pre-arranging a dedicated protection route for a certain subnet connection. Once the subnet fails, the protection subnet will replace the subnet to undertake the transmission task in the entire network. In the synchronous digital system, it is a one-way or two-way end-to-end protection switching scheme. [0003] SNCP usually adopts dual transmission and selective reception, that is, "1+1" protection mode. Provides a pre-configured protection channel for a main service. The main service can be TDM (Testing Data Management, time division multiplexing mode). Currently, when both the working channel and the protection channel are normal, the At the same time, the main service is transmitted, a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L45/247H04L45/28H04L41/06
CPCH04L41/0654H04L41/0668H04L45/22
Inventor 金戈
Owner ZTE CORP
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