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Method and equipment for realizing share Mesh protection, and optical network system

A technology for optical network nodes and protection paths, applied in the field of communication, can solve problems such as strong dependencies, high network operation risks, and complicated configuration operations, and achieve the effects of simple configuration operations and reliable protection switching

Active Publication Date: 2011-06-22
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In the existing technology, the shared Mesh protection is mainly realized through the manual configuration of the network management, but this method is highly dependent on the network management and other equipment, and the configuration operation is usually very complicated, and the risk of network operation is relatively high

Method used

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  • Method and equipment for realizing share Mesh protection, and optical network system
  • Method and equipment for realizing share Mesh protection, and optical network system
  • Method and equipment for realizing share Mesh protection, and optical network system

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Embodiment 3

[0088] This embodiment introduces the technical solution of the present invention in more detail through a specific application scenario. In an application scenario, if the APS overhead is divided into multiple independent physical overhead channels, that is, divided into multiple sub-APS (Sub-APS) overheads, which are allocated to different services sharing the Mesh protection service, the sub-Label can Indicates the identification of the sub-APS overhead used by the service (such as the number of the sub-APS overhead). Switch the service; if the APS overhead is not divided, and the entire APS overhead is shared by all services sharing the Mesh protection service, then the sub-Label can indicate the identification information (such as a service distinguisher) of the shared Mesh protection service. When a When the working path of the service fails, the recovery information including the identification information of the service is transmitted in the APS overhead, so as to swit...

Embodiment 4

[0313] see Figure 5 An optical network node 500 according to Embodiment 4 of the present invention may specifically include: a receiving module 510 , a first distribution module 520 and a recovery information sending module 530 .

[0314] The receiving module 510 is configured to receive a Resv message sent by the second node, where the Resv message carries a second forward-in sub-label allocated by the second node for the protection path of the first service, and the second forward-in sub-label is used to indicate the bearer A specific feature of the recovery information for the first service.

[0315] Among them, the specific features of the recovery information of the first service may include, for example: a specific identifier contained in the recovery information of the first service (for example, a service distinguisher), a specific data structure of the recovery information of the first service, a recovery An identifier of the sub-APS overhead of the information (for...

Embodiment 5

[0341] see Figure 6 , an optical network node 600 according to Embodiment 5 of the present invention may specifically include: a first allocation module 610 and a message sending module 620 .

[0342] Wherein, the first allocation module 610 is configured to allocate a second forward-in sub-label for the protection path of the first service, and the second forward-in sub-label is used to indicate a specific feature of the recovery information of the first service.

[0343] Among them, the specific features of the recovery information of the first service may include, for example: a specific identifier contained in the recovery information of the first service (for example, a service distinguisher), a specific data structure of the recovery information of the first service, a recovery An identifier of the sub-APS overhead of the information (for example, the number of the sub-APS) or other related features.

[0344] The message sending module 620 is configured to send the abo...

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Abstract

The embodiment of the invention discloses a method and equipment for realizing share Mesh protection, and an optical network system. The method for realizing share Mesh protection comprises the following steps of: receiving a second type of message sent by a second node by a first node, wherein the second node carried by the second type of message is a second forward-in sub label distributed on a protection route of a first service, and the second forward-in sub label is used for indicating to carry a specific characteristic of restoring information of the first service; distributing a first forward-out sub label on the protection route of the first service according to the second forward-in sub label, wherein the first forward-out sub label and the second forward-in sub label have a corresponding relation; and transmitting the restoring information of the first service to the second node according to the instruction of the first forward-out sub label if the fault of the working route of the first service is known. By the scheme of the embodiment, each node on the protection route can easily and accurately determine a service to be restored so as to provide reliable support for subsequent service automatic protection switching.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a method and equipment for realizing shared Mesh protection and an optical network system. Background technique [0002] The optical network is widely used due to its high service transmission rate. It can transmit customer services by establishing one or more optical network connections that meet the customer service bandwidth requirements. The reliability of service transmission is an important factor to measure whether the optical network is stable. index. [0003] The reliability of optical network service transmission can be realized by using various protection and restoration technologies, for example, the rerouting technology of the control plane can be used to restore the optical network connection. The control plane is a control network running in an optical network, which provides a control channel and runs a Generalized Multi-Protocol Label Switching (GMPLS, Ge...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/24H04Q11/00H04B10/12H04L12/56H04L45/24H04L45/28H04L69/40
CPCH04L45/22H04Q2011/0098H04L29/14H04Q2011/0081H04L69/40H04Q11/0062H04L45/28
Inventor 孙俊蔡军州
Owner HUAWEI TECH CO LTD
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