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A method and device for ppp message traversing l2tp

A technology of message and message header, applied in the direction of transmission system, electrical components, etc., can solve the problems of increasing equipment burden, long time consumption, affecting the online process, etc., to improve message transmission performance, shorten dial-up time, and improve The effect of penetration efficiency

Active Publication Date: 2022-04-29
FENGHUO COMM SCI & TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] In the above process, the LAC and LNS send packets through multiple inter-process scheduling and finally call SFWD, resulting in low efficiency, long time consumption, and risk of delay
When there are many users, there will be retransmission of messages, which will affect the online process in severe cases. At the same time, it will increase the burden on the equipment, slow the online speed, and the status is unstable.

Method used

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  • A method and device for ppp message traversing l2tp
  • A method and device for ppp message traversing l2tp
  • A method and device for ppp message traversing l2tp

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[0056] In a preferred embodiment, after the SFWD module strips the L2TP header and fills the PPP instance ID and the PPP session ID through the L2TP and PPP session mapping relationship, sending the PPP module to process specifically includes:

[0057] When an L2TP data packet needs to be sent, query the L2TP user table, obtain the PPP instance ID\PPP session ID of the PPP protocol according to the L2TP tunnel ID\L2TP session ID in the table; strip the layer 2 header, IP header, UDP header, keep PPP header; SFWD module adds 6 bytes before PPP header, including 4 bytes of PPP instance ID and 2 bytes of PPP session ID, for encapsulation; SFWD module sends the encapsulated message To the PPP module; the PPP module adds a PPPoE header to the PPP packet according to the PPP instance ID and PPP session ID of the PPP protocol.

[0058] In a preferred embodiment, after the SFWD module strips the L2TP header and fills the PPP instance ID and the PPP session ID through the L2TP and PPP ...

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Abstract

The invention discloses a method and device for PPP messages to pass through L2TP, and relates to the technical field of L2TP tunnel transmission. The method includes: after the L2TP protocol module establishes the L2TP session channel, it informs the SFWD module of the L2TP and PPP session mapping table; when the PPP module When sending a PPP control message, send the PPP control message to the SFWD module, and the SFWD module queries the mapping relationship between L2TP and PPP session in the session mapping table, and directly encapsulates the L2TP data packet header according to the mapping relationship; there is L2TP When a data packet or a PPP control message needs to be sent, the SFWD module strips the L2TP packet header and fills in the PPP instance ID and PPP session ID through the mapping relationship between L2TP and PPP session, and then sends it to the PPP module for processing. The method and device for PPP message traversing L2TP of the present invention can realize higher-performance transmission of PPP message after the L2TP tunnel is established successfully.

Description

technical field [0001] The invention relates to the technical field of L2TP tunnel transmission, in particular to a method and a device for PPP messages to traverse L2TP. Background technique [0002] Tunneling is a method of transferring data between networks by using the infrastructure of the Internet. The data (or payload) transmitted through the tunnel may be data frames or packets of different protocols. The tunneling protocol re-encapsulates data frames or packets of other protocols and sends them through the tunnel. [0003] At present, the L2TP protocol (Layer Two Tunneling Protocol, Layer Two Tunneling Protocol) is mainly used for corporate offices and business travelers to remotely connect to the corporate headquarters via a public network through a virtual tunnel. [0004] In the implementation of L2TP, after the L2TP tunnel is successfully established, the device also needs to enable the PPP protocol (Point to Point Protocol, point-to-point protocol), which is ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L61/2592H04L67/141H04L67/104H04L69/22H04L69/06H04L45/745
CPCH04L61/2592H04L67/141H04L67/104H04L69/22H04L69/06H04L45/745
Inventor 向晓洁戎江霁
Owner FENGHUO COMM SCI & TECH CO LTD
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