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Chip implementation method and device for point-to-multipoint bidirectional forwarding detection

A technology for bidirectional forwarding detection and implementation methods, applied in digital transmission systems, electrical components, transmission systems, etc.

Active Publication Date: 2020-02-21
苏州盛科科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there is no existing solution to implement Multipoint BFD based on chip hardware on the basis of compatibility with existing BFD functions.

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  • Chip implementation method and device for point-to-multipoint bidirectional forwarding detection
  • Chip implementation method and device for point-to-multipoint bidirectional forwarding detection

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Embodiment Construction

[0034] The technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the present invention.

[0035] The chip implementation method and device for point-to-multipoint bidirectional forwarding detection disclosed in the present invention are compatible with existing BFD functions and combined with the high-speed and precise characteristics of hardware to transfer Multipoint BFD (point-to-multipoint bidirectional forwarding) Detection) is applied to corresponding multicast point-to-multipoint detection. It can be used to guide the realization of point-to-multipoint bidirectional forwarding detection function in ASIC (Application Specific Integrated Circuit) or similar integrated circuits.

[0036] Such as figure 1 As shown, the chip implementation method for point-to-multipoint bidirectional forwarding detection disclosed in the present invention includes the MBFD receiving direction...

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Abstract

The invention discloses a chip implementation method and device for point-to-multipoint bidirectional forwarding detection, and the method comprises an MBFD receiving direction processing process andan MBFD sending direction processing process, and the MBFD receiving direction processing process mainly comprises the steps: carrying out the analysis of a message, and obtaining related informationthrough analysis; and determining whether the BFD message is an MBFD message according to the information, performing BFD session search, if a session is searched, performing binding check on the information in the BFD message and the configuration information, performing MBFD validity check on the MBFD message after the check, and selecting a corresponding mode to perform message processing afterthe check is passed. The present invention enables point-to-multipoint link detection in ASIC or similar hardware.

Description

Technical field [0001] The invention relates to a two-way forwarding detection technology, in particular to a chip implementation method and device for point-to-multipoint two-way forwarding detection. Background technique [0002] Bidirectional Forwarding Detection (BFD) is a path detection mechanism widely used in switching networks. There are many bearer modes, including IP (protocol for interconnection between networks) BFD, MPLS (multi-protocol label switching) BFD, and VCCV (Virtual Circuit Connectivity) Verification, virtual circuit connection detection) BFD, MPLS-TP (multi-protocol label switching-transport architecture) BFD, etc., according to different application scenarios, use different encapsulated BFD. Because of its high real-time requirements for path detection, BFD is generally implemented in hardware in switching networks. In the past, BFD only supported point-to-point link detection. IETF proposed the Multipoint BFD (point-to-multipoint bidirectional forwardin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/06H04L12/26
CPCH04L43/08H04L63/12H04L69/22
Inventor 单哲姚佳毅王超
Owner 苏州盛科科技有限公司
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