Link failure detection method and device

A technology of link failure and detection method, applied in the direction of data exchange, digital transmission system, electrical components, etc. through path configuration, can solve problems such as wrong judgment, reduce fault detection accuracy, etc., to achieve the effect of improving accuracy

Active Publication Date: 2007-10-17
NEW H3C TECH CO LTD
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  • Abstract
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  • Claims
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Problems solved by technology

Therefore, if only the fault detection results of MEP2 and MEP3 are used to judge whether the end-to-end link where the aggregated link is located is connected, a wrong judgment may be made, which reduces the fault detection of the end-to-end link where the aggregated link is located. the accuracy of

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  • Link failure detection method and device
  • Link failure detection method and device
  • Link failure detection method and device

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Embodiment Construction

[0038] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0039] Fig. 3 is a flow chart of performing fault detection on the end-to-end link where the aggregated link is located provided by the embodiment of the present invention, as shown in Fig. 3, the specific steps are as follows:

[0040] Step 301: Create a MEP on each aggregated link, specify MD and MA for each MEP.

[0041] Specifically, if the aggregated link has an aggregated logical port, configure the MEP on the aggregated logical port; if the aggregated link does not have an aggregated logical port, but the aggregated link has a primary On the master port, for example, if the physical links of member ports 1, 2, and 3 form an aggregated link, and member port 2 is the master port, configure the MEP on port 2.

[0042] There are two types of MEPs: an inward (Up) MEP and an outward (Down) MEP. If the MEP corresponding to a port is...

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Abstract

The invention discloses a link fault detection method, including: create an MEP on each aggregation link in advance; then, any one port of each aggregation link receives the CFM message from the remote MEP or MIP, send this message to this aggregation link to create the MEP, the MEP may determine the link fault detection results between itself equipment and remote MEP or MIP equipment according to all the received all CFM message, the invention still discloses a link fault detection device, including: aggregation port receiving and sending module and MEP module. The invention may create a MEP on each aggregation link, ensure this MEP to detect all CFM message such as CCM or LBR or LTR message received by the whole aggregation link, thus improves the fault detection accuracy for end to end link of the aggregation link located.

Description

technical field [0001] The invention relates to the technical field of fault detection, in particular to a link fault detection method and device. Background technique [0002] The success of Ethernet technology in the field of LAN, as well as its advantages of simple deployment and maintenance, have prompted service providers, equipment manufacturers and standardization organizations to advance Ethernet technology to the field of MAN and WAN. However, the main obstacle facing the entry of Ethernet technology into the carrier field is the lack of effective maintenance and management tools, so Connectivity Fault Management (CFM, Connectivity Fault Management) came into being. [0003] CFM provides end-to-end connectivity detection. It mainly performs layered link monitoring and fault detection on Layer 2 interconnection services provided by operators. It mainly includes three functions: [0004] 1. Connectivity Check (CC, Connectivity Check) function. A maintenance associat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/26H04L1/00H04L12/56H04L12/28H04L12/24
Inventor 孙加君
Owner NEW H3C TECH CO LTD
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