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Method and system for reducing time of transient interruption of subnetwork connection protection service

A service and subnet technology, which is applied in the field of SNCP service processing on equipment to reduce the number of instantaneous service interruptions

Inactive Publication Date: 2011-01-19
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0004] At present, one-way SNCP is generally used, that is, when a fault occurs in a certain direction of the working link, the downstream node detects a fault, and the transmission plane is switched. Since the upstream node does not detect the fault, it still chooses the original working link, and then the ASON control plane When a recovery channel is established to deliver new SNCP information, there must be a momentary interruption due to the need to switch the working position

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  • Method and system for reducing time of transient interruption of subnetwork connection protection service
  • Method and system for reducing time of transient interruption of subnetwork connection protection service
  • Method and system for reducing time of transient interruption of subnetwork connection protection service

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Embodiment Construction

[0030] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0031] refer to figure 2 , which shows a system for reducing the number of subnet connection protection service interruptions according to an embodiment of the present invention, including a service configuration unit 21, a fault detection unit 22, and a service channel switching unit 23, wherein:

[0032] The service configuration unit 21 is responsible for configuring the subnet connection protection service at the head node and the tail node, and after receiving the request from the service channel switching unit 23 to configure the recovery path of the working channel of the head node and the tail node, configure the head node and the tail node. The node and the recovery path of the working channel of the tail node;

[0033] The fault detection unit 22 is responsible for continuously detecting whether the working channel fails at the hea...

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Abstract

The invention provides a method and a system for reducing time of transient interruption of subnetwork connection protection service. The method comprises the following steps: after a head node and a tail node are configured with subnetwork connection protection service, if the fact that a working routeway fails on the head node or the tail node is detected, controlling the node to switch service to a protecting path, and controlling the node to send warning information switched to the protecting path to an opposite-end node. The method can effectively reduce the time of transient interruption when the subnetwork connection protection service restores after working faults appear in an automatic switching optical network.

Description

technical field [0001] The present invention relates to a method for processing SNCP (Sub-network Connection Protection) services on equipment, in particular to a processing method and system for recovering SNCP services in an ASON (Automatically Switched Optical Network) system . Background technique [0002] SNCP (Sub-network Connection Protection) is a protection mechanism of SDH (Synchronous Digital Hierarchy). It is a dedicated end-to-end protection scheme. The protection scheme can be a dedicated protection channel 1+1 for protection purposes only, or a dedicated protection channel can be used for 1:1 to support additional services. The so-called 1+1 protection means that the protection channel can only be used for protection purposes. If the working channel is not faulty, the protection channel will not carry any services and is in an idle state. If the working channel is faulty, the protection channel will carry services; the so-called 1+1 :1 Protection means that ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04J3/08
Inventor 干建唐思诚
Owner ZTE CORP
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