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L2TP protocol control and forwarding separation method and system

A protocol control and forwarding technology, applied in the field of communication, can solve the problem of inability to realize the separation of L2TP protocol forwarding and control, and achieve the effect of enhancing user carrying capacity and redundancy backup.

Inactive Publication Date: 2020-01-03
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The solution provided according to the embodiment of the present invention solves the problem that the separation of L2TP protocol forwarding and control cannot be realized in the prior art

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  • L2TP protocol control and forwarding separation method and system
  • L2TP protocol control and forwarding separation method and system
  • L2TP protocol control and forwarding separation method and system

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Embodiment Construction

[0039] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described below are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

[0040] figure 1 It is a flowchart of a method for separating L2TP protocol control and forwarding provided by an embodiment of the present invention, as shown in figure 1 shown, including:

[0041] Step S101: LAC-U receives the PPPoE protocol packet sent by the user terminal, and forwards the PPPoE protocol packet to BNG / vBNG-C;

[0042]Step S102: The LAC-U receives the first L2TP protocol message fed back by the BNG / vBNG-C according to the PPPoE protocol message, and forwards the first L2TP protocol message to the LNS-U, wherein, The IP address of the LNS-U is carried in the first L2TP protocol packet;

[0043] Step S103: The LAC-U receives the second...

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Abstract

The invention discloses an L2TP protocol control and forwarding separation method and system. The L2TP protocol control and forwarding separation method comprises the steps that an LAC-U receives a PPPoE protocol message transmitted by a user terminal, and forwards the PPPoE protocol message to a BNG / vBNG-C; the LAC-U receives a first L2TP protocol message fed back by the BNG / vBNG-C according to the PPPoE protocol message and forwards the first L2TP protocol message to an LNS-U, and the first L2TP protocol message carries an IP address of the LNS-U; and the LAC-U receives a second L2TP protocol message fed back by the LNS-U according to the first L2TP protocol message, and establishes an L2TP tunnel and a session with the LNS-U according to the second L2TP protocol message.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a method and system for separating control and forwarding of an L2TP protocol. Background technique [0002] With the development of SDN (Software Defined Network, software-defined network) technology and NFV (Network Function Virtualization, network function virtualization) technology, traditional network element devices are evolving from specialization to generalization. The evolution of traditional network element equipment from specialization to generalization mainly needs to solve two decouplings: the decoupling of control and forwarding, and the decoupling of software and hardware. [0003] BNG (Broadcast Network Gateway, broadband network gateway), as a traditional broadband access gateway device, is very important in user broadband access services and scenarios. L2TP (Layer 2Tunnel Protocol, second layer tunnel protocol) user access is a BNG device important funct...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/46
CPCH04L12/4633
Inventor 花荣荣
Owner ZTE CORP