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Method for fault detection and convergence of Ethernet and node apparatus

A technology for fault detection and node equipment, applied in the field of communication, can solve the problems of reducing network reliability, slow convergence time, and no network convergence mechanism, and achieve the effect of improving fault detection speed

Inactive Publication Date: 2008-06-25
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The aforementioned protocols such as STP (RSTP) / EAPS / RRPP can be used to prevent loops on the Layer 2 network. The re-convergence of the protocol is triggered mainly through the Hello message mechanism of the protocol or the direct perception of port UP / DOWN events. The existing problem is that the convergence time is slower
[0012] Protocols such as STP (RSTP) / EAPS / RRPP are slow in fault detection and network convergence; however, there is no corresponding network convergence mechanism in the OAM protocol. After a link failure is detected, network convergence cannot be completed, which affects services. operation, reducing network reliability

Method used

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  • Method for fault detection and convergence of Ethernet and node apparatus
  • Method for fault detection and convergence of Ethernet and node apparatus
  • Method for fault detection and convergence of Ethernet and node apparatus

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Experimental program
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Embodiment 1

[0038] This embodiment takes a general Ethernet (Ethernet with any topology) as an example for illustration. Firstly, OAM is run on the Ethernet to detect whether the link between nodes is faulty. If so, the STP protocol is used to perform protection switching. Referring to Fig. 5, the embodiment of the present invention provides a method for Ethernet fault detection and convergence, specifically including:

[0039] 101: A node in the Ethernet periodically sends an OAM CC (Continuity Check, connectivity detection) message to an adjacent node to perform fault detection on links at both ends of the node.

[0040] Referring to FIG. 6 , it is a general Ethernet, in which each node sends an OAM CC message to its adjacent nodes to detect whether the link between the nodes is normal.

[0041] 102: If the node does not receive the CC message sent by the adjacent node within the preset time, it is determined that the link between the node and the adjacent node is faulty.

[0042] Refe...

Embodiment 2

[0051] In this embodiment, an Ethernet ring network (an Ethernet with a ring topology) is taken as an example for illustration. For an Ethernet ring network, after a network link failure is detected by running OAM, the RRPP protocol may also be used for network convergence. Referring to Fig. 7, the embodiment of the present invention provides a method for Ethernet fault detection and convergence, specifically including:

[0052] 201: A node in the Ethernet ring network periodically sends an OAM CC message to an adjacent node.

[0053] 202: If the node does not receive the CC message sent by the adjacent node within the preset time, it is determined that the link between the node and the adjacent node is faulty.

[0054] 203: The node adopts the RRPP protocol to perform network convergence.

[0055] After a link failure is detected, the node adopts the RRPP protocol to perform network convergence. The specific process is as follows:

[0056] According to the RRPP protocol, th...

Embodiment 3

[0065] Referring to FIG. 10, an embodiment of the present invention provides a node device, and the node device includes:

[0066] A detection module, configured to perform fault detection on the link according to the operation, maintenance and management agreement;

[0067] The convergence module is used for performing network convergence by adopting a corresponding layer-2 network protection protocol according to the type of the Ethernet after the detection module detects a link failure.

[0068] The above detection module may specifically include:

[0069] A sending unit, configured to periodically send a connectivity detection message of an operation, maintenance and management protocol to an adjacent node device of the node device;

[0070] The judging unit is configured to judge that the link between the node device and the adjacent node device is faulty when the node device does not receive the connectivity detection message sent by the adjacent node device of the node...

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Abstract

The invention discloses a method for detecting and converging the Ethernet failure, as well as the node equipment thereof, and belongs to the communication field. The method comprises the following steps: failure detection is carried out to a link according to the operation, the maintenance and the management protocols; when the link is detected to have a failure, a corresponding layer 2 network protecting protocol is adopted to carry out the network convergence according to the Ethernet type. The node equipment comprises a detection module and a convergence module. The invention carries out the failure detection to the link through the Ethernet OAM protocol, and the corresponding protection and switching protocol is adopted to carry out the network convergence after detecting that the link has the failure, thereby improving the failure detecting speed of the Ethernet.

Description

technical field [0001] The invention relates to the communication field, in particular to an Ethernet fault detection and convergence method and node equipment. Background technique [0002] In the prior art, link fault detection and network convergence are mainly performed through the following three protocols in Ethernet: [0003] 1) The STP (Spanning Tree Protocol, Spanning Tree Protocol) protocol and the RSTP (Rapid Spanning Tree Protocol, Rapid Spanning Tree Protocol) protocol are mainly used to solve the broadcast loop problem in the Ethernet. Referring to Fig. 1, the principle of STP is to first elect a root node (root bridge) in the network, and exchange information by sending BPDU (Bridge Protocol Data Uni, Bridge Protocol Data Unit) messages between network nodes (bridges or switches). On each node, the root node is used as the center to perform pruning through STA (Spanning Tree Algorithm, Spanning Tree Algorithm) to block redundant links, thereby eliminating pos...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/24H04L12/437
CPCH04L41/0677H04L69/40H04L12/437H04L43/0811H04L12/462
Inventor 滕新东
Owner HUAWEI TECH CO LTD
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