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Ethernet looped network automatic protection rotation method and device

A technology of automatic protection switching and protection switching, which is applied in the field of network communication, can solve the problem of a large number of occupations, and achieve the effects of automatic protection switching, reducing VLAN resources, and reducing OAM levels

Inactive Publication Date: 2008-09-24
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In the process of realizing the present invention, the inventor found that in the above-mentioned prior art solution, two levels of OAM are required, and a large amount of VLAN resources are required to isolate the management / control messages of different Ethernet ring instances.

Method used

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  • Ethernet looped network automatic protection rotation method and device
  • Ethernet looped network automatic protection rotation method and device
  • Ethernet looped network automatic protection rotation method and device

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Embodiment Construction

[0042] The embodiment of the present invention provides an Ethernet ring network automatic protection switching method and device.

[0043] The embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. The processing flow of the method described in the embodiments of the present invention is as follows figure 1 shown, including the following steps:

[0044] Step 1-1. Establish and maintain the corresponding relationship between the link corresponding to each node port and the Ethernet ring instance.

[0045] In the embodiment of the present invention, it is first necessary to establish an Ethernet ring instance for the service VLAN to be protected in the Ethernet ring network, and set a corresponding Ethernet ring instance identifier.

[0046] The embodiment of the present invention provides a figure 2 The structure diagram of the Ethernet ring network is shown in the figure. The Ethernet ring network is composed o...

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Abstract

The embodiment of the invention provides an Ethernet-ring-network automatic protection switching method and a device thereof. The method mainly comprises: after nodes detecting that links between nodes go wrong or recover from failure, nodes determine Ethernet-ring instances which are affected or not affected by the failure or recover from the failure; protection switching messages carrying information of Ethernet-ring instances which are affected or not affected by the failure or recover from the failure are sent. The utilization of the embodiment of the invention can realize automatic protection switching of Ethernet-ring-network under a circumstance of reducing OAM (Operation, Administration and Maintenance) layers and reducing resources of VLAN (Virtual Local Area Network).

Description

technical field [0001] The invention relates to the field of network communication, in particular to a method and device for automatic protection switching of an Ethernet ring network. Background technique [0002] ERP (Ethernet Ring Protection, Ethernet Ring Protection) is an Ethernet service protection method. ERP is based on physical or logical ring topology, and utilizes the related characteristics of closed ring and Ethernet to realize fast protection switching of point-to-point, point-to-multipoint and multipoint-to-multipoint services. ERP has the characteristics of high bandwidth utilization, fast protection switching speed, low network construction cost, and supports point-to-multipoint and multipoint-to-multipoint service switching. [0003] In the prior art, when realizing the automatic protection switchover of the Ethernet ring network, fault monitoring is performed between adjacent nodes of the Ethernet ring network, and when a fault is detected, an APS (Automa...

Claims

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Application Information

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IPC IPC(8): H04L12/42H04L12/26
Inventor 龙昊杨洋
Owner HUAWEI TECH CO LTD
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