Method for implementing Ethernet protection switching

A technology of protection switching and Ethernet, which is applied in the field of realization of Ethernet protection switching, can solve problems such as unsatisfactory carrier-level protection, lack of organic combination of Ethernet OAM technology and services, and achieve protection switching time requirements and reduce impact effects

Inactive Publication Date: 2017-08-22
FENGHUO COMM SCI & TECH CO LTD
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  • Abstract
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Problems solved by technology

However, when current PTN equipment uses Ethernet to carry IP-based services, Ethernet OAM technology and services are not organically c

Method used

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  • Method for implementing Ethernet protection switching

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Embodiment Construction

[0022] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments.

[0023] see figure 1 As shown, the embodiment of the present invention provides a method for implementing Ethernet protection switching, the method comprising:

[0024] S1. Establish two links between the source end and the sink end to deliver service data configuration, one of which is the active link, and the other link is the backup link. Both the source end and the sink end have The main control protection module, the main link and the backup link are respectively equipped with Ethernet OAM to realize the end-to-end OAM intercommunication of the link;

[0025] S2, Ethernet OAM sends OAM messages in the form of FPGA periodic packets, OAM messages include OAM CV frames for detecting link alarm information and APS frames with Ethernet OAM source link identification address cfm id, OAM CV The frame sending period is 3.33ms. The APS frame of t...

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Abstract

The invention discloses a method for implementing Ethernet protection switching. The method comprises: S1, two links carrying out service data configuration and issuing are established between a source terminal and a destination terminal, wherein one of the two links serves as a main link and the other one serves as a standby one, the source terminal and the destination terminal are provided with main control protection modules respectively, and the main link and the standby line are equipped with Ethernet OAM units for realizing end-to-end OAM intercommunication of links; S2, the Ethernet OAM units send OAM messages by means of FPGA periodic packet sending, wherein the OAM messages include OAM CV frames for detecting link alarm information and APS frames with cfm ids and the APS frame of the main link is not enabled and the APS frame of the standby link is enabled; and S3, the main control protection modules determine the link states according to the OAM messages of the main link and the standby link respectively; and if a fault occurs at the main link or the main link works normally again or a fault occurs at the standby link after switching of the main link, the main control protection modules of the source terminal and the destination terminal issue a switching command to carry out link switching.

Description

technical field [0001] The invention relates to the technical field of Ethernet protection switching, in particular to a method for realizing Ethernet protection switching. Background technique [0002] According to the actual needs of operators' network operations, the network management work is usually divided into three categories: Operation, Administration, and Maintenance, or OAM, which mainly completes the analysis of daily networks and services, Forecasting, planning and configuration work, as well as day-to-day operational activities such as testing and fault management of the network and its services. [0003] The protection switching time PST (Protection Switching Time) is defined as a period of time from the moment when a network fault occurs to the time when the protection path corresponding to the working path across the fault is activated and takes effect. The protection of the optical path The switching time is actually the failure time of an optical path cau...

Claims

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Application Information

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IPC IPC(8): H04L12/703H04L12/707H04L45/28H04L45/24
CPCH04L45/22H04L45/28
Inventor 丁浩邓李力刘啸戎听红
Owner FENGHUO COMM SCI & TECH CO LTD
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