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BFD session establishment method and system, and equipment

A session establishment and router technology, applied in the communication field, can solve the problems of high resource overhead and resource consumption.

Pending Publication Date: 2022-02-25
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The BFD protocol plays a great role in maintaining network stability, but maintaining BFD sessions consumes resources. When a network device needs to maintain a large number of BFD sessions, the resource overhead is high.

Method used

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  • BFD session establishment method and system, and equipment
  • BFD session establishment method and system, and equipment
  • BFD session establishment method and system, and equipment

Examples

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Embodiment Construction

[0041] In order to enable those skilled in the art to better understand the solutions of the present application, the technical solutions in the embodiments of the present application will be clearly described below in conjunction with the drawings in the embodiments of the present application. Apparently, the described embodiments are only some of the embodiments of the present application, not all of them.

[0042] In the embodiments of the present application, words such as "exemplary" or "for example" are used as examples, illustrations or illustrations. Any embodiment or design scheme described as "exemplary" or "for example" in the embodiments of the present application shall not be interpreted as being more preferred or more advantageous than other embodiments or design schemes. Rather, the use of words such as "exemplary" or "such as" is intended to present related concepts in a concrete manner. In the embodiments of the present application, unless otherwise specified...

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Abstract

The invention discloses a Bidirectional Forwarding Detection (BFD) session establishment method and system, and equipment, which are used for reducing the resource overhead and the operation and maintenance cost for establishing a BFD session. The BFD session establishment system provided by the invention comprises a first router and a second router, wherein the first router receives a data message and sends a BFD message to the second router according to the data message, and the second router is downstream equipment on a forwarding path of the data message.

Description

technical field [0001] The present application relates to a communication technology, and in particular to a bidirectional forwarding detection (Bidirectional Forwarding Detection, BFD) session establishment method, device and system. Background technique [0002] The BFD protocol is used to quickly detect communication failures. The BFD protocol can perform fault detection on any type of channel between communication systems, these channels include directly connected physical links, virtual circuits, Multiprotocol Label Switching (Multiprotocol Label Switching, MPLS), label switched path (label switched path, LSP), a multi-hop routing channel, and the channel may also be a unidirectional link, such as an MPLS traffic engineering (traffic engineering, TE) tunnel. [0003] After the two parties running the BFD protocol establish a BFD session, they will periodically send BFD packets to each other. If one party does not receive the BFD packet sent by the other party within th...

Claims

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Application Information

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IPC IPC(8): H04L67/141H04L67/143
CPCH04L67/141H04L67/143
Inventor 张可超张耀坤
Owner HUAWEI TECH CO LTD