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Method and routing equipment for BFD session establishment

A technology for session establishment and equipment, applied in the field of detection, which can solve problems such as reduced reliability of fault detection

Active Publication Date: 2015-04-08
HUAWEI TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, since the backhaul is processed on the IP path, if the IP path fails, the BFD detection result is still that the bidirectional link to be detected is faulty, which reduces the reliability of fault detection

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  • Method and routing equipment for BFD session establishment
  • Method and routing equipment for BFD session establishment
  • Method and routing equipment for BFD session establishment

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Embodiment Construction

[0085] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0086] In addition, the term "and / or" in this article is only an association relationship describing associated objects, which means that there may be three relationships, for example, A and / or B, which may mean: A exists alone, A and B exist at the same time, There are three cases of B alone. In addition, the character " / " in this article genera...

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Abstract

The embodiments of the application provide a method and routing device for BFD session establishment. On one hand, in the embodiments of the application, a first routing device sends a link identifier for identifying the bidirectional link to be detected and a first descriptor assigned by the first routing device for the bidirectional link to be detected to a second routing device, thereby enabling the second routing device to determine the bidirectional link to be detected according to the link identifier, and to create a first relationship of the bidirectional link to be detected, the first descriptor and a second descriptor, wherein the second descriptor is the descriptor assigned by the second routing device for the bidirectional link to be detected; the first routing device further receives a first BFD message sent by the second routing device through the bidirectional link to be detected according the first relationship, wherein the first BFD message comprises the first descriptor and the second descriptor, thereby enabling the first routing device to create a second relationship of the bidirectional link to be detected, the first descriptor and the second descriptor.

Description

technical field [0001] The present invention relates to detection technology, in particular to a bidirectional forwarding detection (Bidirectional Forwarding Detection, referred to as BFD) session establishment method and routing equipment. Background technique [0002] In order to quickly detect network failures, bidirectional forwarding detection (Bidirectional Forwarding Detection, referred to as BFD) is required. When a bidirectional link failure is detected, service path switching can be triggered in time to achieve the purpose of protecting services. In the dynamic BFD implementation of bidirectional link fault detection, a routing device can send BFD packets to another routing device through the bidirectional link to be detected (that is, a bidirectional link), and the other routing device performs backhaul processing on the corresponding IP path , that is, encapsulate the BFD packet in an IP packet and return it to the routing device through the IP path. [0003] Ho...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/26H04L12/56H04L12/24
CPCH04L41/0677H04L43/0811H04L45/00H04L45/28H04L45/02H04L43/10
Inventor 杨杰苏现群黄永年王歆平
Owner HUAWEI TECH CO LTD
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