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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, data exchange networks, electrical components, etc.

Active Publication Date: 2021-10-22
苏州盛科科技有限公司
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  • 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
  • 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] A chip implementation method and device for point-to-multipoint bidirectional forwarding detection disclosed by the present invention, on the basis of being compatible with the existing BFD function, combined with the high-speed and precise characteristics of hardware, to implement Multipoint BFD (point-to-multipoint bidirectional forwarding) detection) is applied to the corresponding multicast point-to-multipoint detection. It can be used to guide the realization of a point-to-multipoint bidirectional forwarding detection function in an ASIC (Application Specific Integrated Circuit, Application Specific Integrated Circuit) or similar integrated circuits.

[0036] like figure 1 As shown, a chip implementation method for point-to-multipoint bidirectional forwarding detection di...

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Abstract

The present invention discloses a chip implementation method and device for point-to-multipoint bidirectional forwarding detection. The method includes a MBFD receiving direction processing process and an MBFD sending direction processing process. The MBFD receiving direction processing process mainly includes parsing messages , analyze the relevant information; determine whether the BFD message is an MBFD message according to the information, and perform a BFD session search. If the session is found, the information in the BFD message and the configuration information are bound and checked, and after the check, the The MBFD message is checked for MBFD validity, and after the check is passed, the corresponding method is selected for message processing. The invention realizes point-to-multipoint link detection in ASIC or similar hardware.

Description

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

Claims

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Application Information

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Patent Type & Authority Patents(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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