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A method of detecting mismatch fault and maintenance terminal point

A technology for maintaining terminal points and mismatching, which is used in error prevention, digital transmission systems, electrical components, etc.

Active Publication Date: 2011-12-21
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Currently, there is no solution to detect mismatch faults

Method used

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  • A method of detecting mismatch fault and maintenance terminal point
  • A method of detecting mismatch fault and maintenance terminal point
  • A method of detecting mismatch fault and maintenance terminal point

Examples

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Embodiment Construction

[0059] Figure 4 It is a flow chart of the method for detecting mismatch failure of the present invention, such as Figure 4 shown, including:

[0060] Step 400: Determine whether TESI is configured on the segment, set the bearer traffic identifier variable (PTS) of the MEP on the segment, and set the value of the bearer traffic identifier field in the CCM sent by the MEP.

[0061] In this step, when it is determined that TESI is configured on the section corresponding to the MEP itself, then set PTS to true or 1. Determining that the TESI is configured on the segment corresponding to the MEP itself is: the IPG finds out the egress port value corresponding to the corresponding entry of the TESI protected by the IPG in the forwarding table FDB. The PTS variable of the MEP corresponding to the egress port in the IPG is set to true or 1; otherwise, it is false or 0. at this time,

[0062] Set the value of the bearer traffic identifier field (traffic) in the CCM sent by the ME...

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Abstract

The disclosure provides a method for detecting a mismatch fault and a Maintenance Endpoint (MEP). The method includes: determining whether there is a Traffic Engineering Service Instance (TESI) configured in a segment, setting a Present Traffic in Segment (PTS) variable, and setting a value of a PTS field included in a Connectivity Check Message (CCM) sent from a Maintenance Endpoint (MEP); receiving the CCM by the MEP, when the value of the PTS field included in the CCM does not coincide with that of the PTS variable, setting, by the MEP, a first mismatch fault indication variable mmCCMreceived to be set; when the first mismatch fault indication variable mmCCMreceived remains set after a first preset time period expires, detecting that a mismatch fault occurs. The method finds timely the mismatch problem occurred in the segment protection of Provider Backbone Bridging-Traffic Engineering (PBB-TE), thereby preventing data loss and service interruption caused by the occurrence of mismatch.

Description

technical field [0001] The invention relates to an Ethernet protection technology, in particular to a method for detecting mismatch faults and a maintenance terminal point in a PBB-TE section protection technology. Background technique [0002] With the introduction of the carrier-class Ethernet concept, higher requirements are put forward for the protection and switching of the Ethernet in order to make the Ethernet reach the carrier-class standard. In the existing carrier backbone bridging technology (PBB-TE) protection switching technology for traffic engineering, what is currently supported is the protection of Traffic Engineering Service Instance (TESI, Traffic Engineering Service Instance), that is, a kind of end-to-end tunnel Protect. This end-to-end protection scheme not only takes a long time for protection switching, but also involves too many nodes, so it is impossible to protect the intermediate links and nodes alone. Once a link or a node in the middle fails, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/24H04L12/26H04L1/00
CPCH04L43/00H04L43/0811H04L41/0668H04L12/2602H04L43/0823H04L41/0659H04L12/24H04L43/10
Inventor 敖婷魏月华吴少勇
Owner ZTE CORP
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