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Method and equipment for detecting link fault

A link fault and detection method technology, applied in the field of communication, can solve problems such as consuming network bandwidth, long time to detect faults, and affecting processing performance of network equipment, so as to speed up convergence time, speed up fault time, and shorten fault detection the effect of time

Active Publication Date: 2014-10-08
NEW H3C TECH CO LTD
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  • Summary
  • Abstract
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  • Claims
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Problems solved by technology

[0004] However, the principle of BFD fault detection technology is to periodically send BFD packets. If no BFD packets are received for N consecutive times, the corresponding link is considered to be faulty. Therefore, it takes a long time to detect faults.
Furthermore, if the fault detection time needs to be shortened, the interval for sending BFD packets needs to be reduced, which will seriously consume network bandwidth and affect the processing performance of network devices

Method used

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  • Method and equipment for detecting link fault
  • Method and equipment for detecting link fault
  • Method and equipment for detecting link fault

Examples

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Embodiment Construction

[0033] Aiming at the problems existing in the prior art, an embodiment of the present invention provides a link fault detection method, which can be applied to a network including multiple network devices. by figure 1 It is a schematic diagram of the application scenario of the embodiment of the present invention, and the network devices included in the network are specifically: network device A, network device B, network device C, network device D, network device E, network device F, and network device G.

[0034] In an embodiment of the present invention, the network manager can configure a fault point monitoring list on each network device, and the fault point monitoring list is used to record the correspondence between the fault point information and the address information of the notified object. Wherein, the fault point information specifically includes: a fault source ID and a fault point ID, where the fault source ID is used to identify a network device where a fault o...

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Abstract

The invention discloses a method and equipment for detecting a link fault. The method includes the steps that the detection device of network equipment detects that a first numerical value of the voltage of an interface is changed into a second numerical value; the detection device of the network equipment generates an interruption signal and outputs the interruption signal to a controller of the network equipment; after receiving the interruption signal, the controller of the network equipment determines fault point information corresponding to the interface and determines that a link corresponding to the fault point information breaks down. According to the method and equipment, fault detection time can be shortened, whole network fault perception is accelerated, and convergence time of whole network services is shortened.

Description

technical field [0001] The present invention relates to the technical field of communications, in particular to a link fault detection method and equipment. Background technique [0002] Such as figure 1 As shown, when network device D has traffic to send to network device A, network device D will send the traffic to network device A through the main link. When the primary link fails, network device D will send traffic to network device A through the standby link. In order to switch traffic to the standby link in time when the primary link fails, network device D needs to be able to detect whether the primary link fails in time. [0003] In the prior art, a BFD (Bidirectional Forwarding Detection, bidirectional forwarding detection) fault detection technology is used to detect whether a link is faulty, which monitors whether a link is faulty by exchanging BFD packets between two network devices. For example, when the link between network device A and network device B fail...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/26H04L12/703H04L45/28
Inventor 幺双超孟丹罗忠海
Owner NEW H3C TECH CO LTD
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