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Device and method for implementing point-to-multipoint at mpls SBFD reflection end

A point-to-multipoint, reflection-end technology, applied in the field of communication, can solve the problems of complicated operation and low efficiency

Active Publication Date: 2021-11-26
SUZHOU CENTEC COMM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The BFD technology in the related art requires the traditional three-way handshake process when establishing a session, and the traditional handshake process is not only cumbersome to operate, but also inefficient

Method used

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  • Device and method for implementing point-to-multipoint at mpls SBFD reflection end
  • Device and method for implementing point-to-multipoint at mpls SBFD reflection end
  • Device and method for implementing point-to-multipoint at mpls SBFD reflection end

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Embodiment Construction

[0054] The present invention will be described in detail below in conjunction with specific embodiments shown in the accompanying drawings. However, these embodiments do not limit the present invention, and any structural, method, or functional changes made by those skilled in the art according to these embodiments are included in the protection scope of the present invention.

[0055] Before introducing the present invention, briefly introduce SBFD.

[0056]SBFD can be divided into sender and reflector according to their roles. The sender actively sends SBFD packets (for the purpose of initiating SBFD detection), maintains and updates the state machine, initiates negotiation, etc., and the reflector passively reflects the received SBFD packets. The sending end sends the SBFD message, and the reflecting end replies with the SBFD message to detect whether the link between the nodes is normal.

[0057] The SBFD message is encapsulated in the UDP message, and then the UDP messag...

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Abstract

The invention discloses a point-to-multipoint device and method for an MPLS SBFD reflection end. The device includes: a message identification module, which is used to identify the type of the received message, and sends the message to a corresponding module according to the message type; an OAM engine module, which is used to generate loopback information, and Send the loopback information and the MPLS message to the message editing module; the message editing module is used to edit the MPLS message according to the loopback information, and send the edited message to the message loopback module. The message loopback module sends the edited message to the message identification module. Compared with the prior art, the MPLS SBFD reflection end of the present invention realizes the point-to-multipoint device, which separates the editing step of the SBFD reply message to the sending end from the encapsulation step of the MPLS label, and multiplexes the data after the message is looped back. For the forwarding information of the message, look up the routing table to determine the exit of the next hop and edit the information, so as to realize that one reflection end supports multiple senders.

Description

technical field [0001] The invention relates to the communication field, in particular to a device and method for implementing point-to-multipoint at an MPLS SBFD reflection end. Background technique [0002] In today's network development, the requirements for operation and maintenance are getting higher and higher, and higher requirements are put forward for how to quickly and effectively detect network anomalies and perform backup and recovery. [0003] Bidirectional Forwarding Detection (Bidirectional Forwarding Detection, referred to as BFD) is a mechanism for fast error detection in the network. At present, there are Internet Protocol (Internet Protocol-BFD, referred to as IP-BFD), Multi-Protocol Label Switching (Multi-Protocol Label Switching-BFD, referred to as MPLS-BFD), multi-protocol label switching transmission network bidirectional forwarding detection (MPLS Transport Profile BFD, referred to as TP-BFD) and other BFD technologies. The BFD technology in the rela...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/723H04L12/721H04L12/741H04L12/46H04L45/50H04L45/74
CPCH04L45/50H04L45/70H04L45/745H04L12/4633
Inventor 李磊何志川周杰
Owner SUZHOU CENTEC COMM CO LTD