Method for detecting tunnel faults and traffic engineering (TE) node

A detection method and technology of traffic engineering, applied in the communication field, can solve the problems of increasing the loss or delay of fault notification packets, blocking fault notification, and delaying the processing of fault tunnels.

Active Publication Date: 2011-07-27
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When there are a large number of tunnels at the same fault point, a large number of fault notification messages will be generated, which will cau

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  • Method for detecting tunnel faults and traffic engineering (TE) node
  • Method for detecting tunnel faults and traffic engineering (TE) node
  • Method for detecting tunnel faults and traffic engineering (TE) node

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Embodiment Construction

[0024] The technical solutions in the embodiments of the present invention are clearly and completely described below.

[0025] see figure 1 , an embodiment of the present invention provides a tunnel fault detection method, including:

[0026] S11, a node with a traffic engineering (TE) function receives a link failure report message, and the node with a traffic engineering (TE) function is referred to as a TE node for short in this application document;

[0027] S12. The node determines the faulty link that has failed according to the link fault report message;

[0028] S13. The node detects whether there are one or more tunnels with the node as the head node and passing through the faulty link;

[0029] S14. If there is one or more tunnels with the node as the head node and passing through the faulty link, determine that the tunnel is a faulty tunnel.

[0030] The node detecting whether there are one or more tunnels with the node as the head node and passing through the f...

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Abstract

The embodiment of the invention provides a method for detecting tunnel faults and a traffic engineering (TE) node. In the method, a TE node receives a link fault report message; the node determines a fault link having a fault in accordance with the link fault report message; the node inspects whether one or more tunnels which take the node as the head node and pass through the fault link exist or not; and if so, determining the tunnel(s) to be a fault tunnel(s). According to the embodiment of the invention, the TE node can detect all fault tunnels once without judging the fault tunnels one by one until a fault notification of every tunnel is received. Therefore, compared with the prior art, the TE node can detect fault tunnels in time in a network with a large number tunnels.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a tunnel fault detection method and a traffic engineering (Traffic Engineering, TE) node. Background technique [0002] The task of mapping traffic flows onto the physical topology of the network is called Traffic Engineering TE. TE is a powerful tool through which you can balance the traffic load between different links, routers and switches in the network, so that all these devices are neither overused nor underused, so that they can be effectively utilized resources across the web. [0003] In order to ensure the security of tunnels in the network, the first node deployed with traffic engineering TE needs to quickly detect faults so as to ensure TE processing in time. In the current existing technology, there are mainly two methods for fault detection of TE tunnels. One is to directly rely on the soft state refresh mechanism of the Resource Reservation Protocol (RSVP) ...

Claims

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Application Information

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IPC IPC(8): H04L12/26H04L12/24H04L45/28
CPCH04L43/0811H04L12/4633H04L45/28H04L12/46H04L45/00H04L41/0654
Inventor 陈飞白涛陈磊
Owner HUAWEI TECH CO LTD
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