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A kind of bfd detection method and device

A detection method and detection result technology, applied in the field of communication, can solve problems such as the inability to provide a fault detection mechanism for multi-path tunnels and the inability to guarantee connectivity, and achieve the effects of improving bandwidth utilization, shortening convergence time, and saving bandwidth

Active Publication Date: 2020-09-08
NEW H3C TECH CO LTD
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Problems solved by technology

[0004] When the primary path fails, the BFD session needs to be deleted. After the backup path of the multipath tunnel is switched to the primary path, a BFD session needs to be recreated for the multipath tunnel. Provides a fault detection mechanism for multipath tunnels, resulting in unguaranteed connectivity

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  • A kind of bfd detection method and device
  • A kind of bfd detection method and device
  • A kind of bfd detection method and device

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Embodiment Construction

[0018] The terms used in the embodiments of the present application are only for the purpose of describing specific embodiments, rather than limiting the present application. As used in this application and the claims, the singular forms "a", "the" and "the" are intended to include the plural forms as well, unless the context clearly dictates otherwise. It should also be understood that the term "and / or" as used herein is meant to include any and all possible combinations of one or more of the associated listed items.

[0019] It should be understood that although the embodiments of the present application may use terms such as first, second, and third to describe various information, such information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another. For example, without departing from the scope of the present application, first information may also be called second information, and similarly, second ...

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Abstract

The present application provides a BFD detection method and device. The method includes: creating a first BFD session for the main path, determining a first session parameter corresponding to the first BFD session, and performing an operation on the main path according to the first session parameter The path performs BFD detection; a second BFD session is created for each backup path, and the second BFD session corresponding to the second BFD session is determined according to the weight value of the main path, the weight value of the backup path, and the first session parameter. Two session parameters, performing BFD detection on the backup path according to the second session parameters. Through the technical solution of the present application, the reliability of detection can be improved, and when the main path fails, the connectivity of the backup path can be continuously detected, invalid path switching can be avoided, and the convergence time can be shortened.

Description

technical field [0001] The present application relates to the technical field of communications, and in particular to a BFD detection method and device. Background technique [0002] BFD (Bidirectional Forwarding Detection, bidirectional forwarding detection) is a general, standardized, medium-independent and protocol-independent fast fault detection mechanism, which is used to detect the link connectivity status in the IP network and ensure that the communication between network devices can be quickly detected faults, so that timely measures can be taken to ensure the continuous operation of the business. BFD can quickly detect the failure of the bidirectional forwarding path between two network devices for various upper-layer protocols (such as routing protocols, etc.), and can provide millisecond-level detection. [0003] A multi-path tunnel may include multiple paths, where there is a primary path among the multiple paths, and other paths other than the primary path are...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/26H04L12/707H04L45/24
CPCH04L43/02H04L43/0811H04L45/22
Inventor 刘生根
Owner NEW H3C TECH CO LTD
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