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Bidirectional forwarding detection switching method and edge equipment

An edge device and forwarding table technology, applied in the field of communication, can solve problems such as secondary path switching, and achieve the effects of avoiding secondary path switching, shortening transmission paths, and reducing data volume

Active Publication Date: 2020-08-04
NEW H3C SECURITY TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In this application scenario, it may cause secondary switching of the path

Method used

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  • Bidirectional forwarding detection switching method and edge equipment
  • Bidirectional forwarding detection switching method and edge equipment
  • Bidirectional forwarding detection switching method and edge equipment

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Embodiment Construction

[0052] Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of apparatuses and methods consistent with aspects of the present application as recited in the appended claims.

[0053] The terminology used in this application is for the purpose of describing particular embodiments only, and is not intended to limit the application. As used in this application and the appended 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 ...

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Abstract

The invention provides a bidirectional forwarding detection switching method and edge equipment. The bidirectional forwarding detection switching method is applied to the edge equipment, the edge equipment is first endpoint equipment of a tunnel, main path information and standby path information between the edge equipment and second endpoint equipment of the tunnel are preset by the edge equipment, and one or more pseudo wires (PW) are established between the edge equipment and the second endpoint equipment. The method comprises the following steps: when the CPU of the edge equipment detectsthat other equipment except the edge equipment in the main path fails, setting encapsulation information as first encapsulation information comprising standby path information, and transmitting firstBFD message information corresponding to a first PW; when the forwarding unit of the edge device receives a service message corresponding to the first PW, packaging the service message by using firstpackaging information including standby path information, and forwarding the obtained tunnel message; and enabling the forwarding unit to receive the first BFD message information, encapsulate the first BFD message information by using the first encapsulation information, and forward the obtained BFD message.

Description

technical field [0001] The present application relates to the field of communication technologies, and in particular to a bidirectional forwarding detection switching method and an edge device. Background technique [0002] At present, redundant paths are often set up between endpoint devices at both ends of the tunnel, so as to ensure that packets can be transmitted in the tunnel as much as possible. For example, two paths, one active and one backup, are deployed between the endpoint devices at both ends of the tunnel. When a device in the main path fails, packets can be transmitted through the backup path, which involves path switching technology. [0003] The above technologies are often combined with a pseudo wire (Pseudo Wire, abbreviated: PW) technology and applied to actual networking, and a bidirectional forwarding detection (Bidirectional Forwarding Detection, abbreviated: BFD) is used to detect and protect the PW. For example: set the active and standby paths betw...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/707H04L12/723H04L12/721H04L12/46H04L45/24H04L45/50
CPCH04L45/22H04L45/50H04L45/68H04L12/4633
Inventor 邢家茂
Owner NEW H3C SECURITY TECH CO LTD