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Method for processing of double layer channel protocol message and apparatus thereof

A technology of a processing device and a processing method, which is applied to digital transmission systems, electrical components, transmission systems, etc., and can solve the problem of insufficient processing time for control messages, failure to distinguish between control messages and data messages, and failure to establish user channels And other issues

Active Publication Date: 2008-07-23
ALCATEL LUCENT SHANGHAI BELL CO LTD
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  • Abstract
  • Description
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Problems solved by technology

[0010] The purpose of the present invention is to solve the problem that in the prior art, the received control messages and data messages are not differentiated and processed, so that when the network traffic is very large, the control messages are too late to process because the data messages take up a lot of processing time , leading to the problem that the channel of the user who dials in later cannot be established

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  • Method for processing of double layer channel protocol message and apparatus thereof
  • Method for processing of double layer channel protocol message and apparatus thereof
  • Method for processing of double layer channel protocol message and apparatus thereof

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Embodiment Construction

[0028] The present invention will be described in detail below with reference to the drawings and embodiments.

[0029] The invention provides a method for processing L2TP messages by network equipment of a virtual private network. figure 2 What is shown is a flowchart of a method for processing L2TP packets by a network device of a virtual private network in an embodiment of the present invention. The L2TP message is divided into a data message and a control message. The L2TP message includes a channel number and a type field T that distinguishes the data message from the control message, and the channel control block corresponding to the channel corresponding to the channel number contains The length threshold of the waiting queue length of the control message, for example, the channel number in this embodiment is '2', and the length threshold of the waiting queue length in the channel control block corresponding to the channel '2' is '10'. The processing method of the L2TP mes...

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Abstract

This invention provides a process method and a device for L2TP messages in the network device of a virtual special net, in which, the L2TP messages are sorted into data messages and control messages characterizing in setting a congestion threshold value first then receiving theL2TP messages and judging if they are control messages, if so, direct process and response are carried out, if they are data messages, then the channel number of the data messages and queue length of waiting for response of the control messages in related channels are got, judging if the length is larger or equal to the congestion threshold value, if so, the data messages are discarded and the next L2TP message is received, if not, then the data messages are processed and the next is received.

Description

Technical field [0001] The invention relates to the processing of Layer 2 Channel Protocol (L2TP) messages, in particular to the processing of control messages and data messages of L2TP messages in a virtual private network system. Background technique [0002] L2TP is a layer 2 protocol used to construct a virtual private network (VPN, Virtual Private Network). L2TP messages are encapsulated through User Datagram Protocol (UDP), and then point-to-point protocol (PPP) or point-to-point over Ethernet Protocol (PPPOE) further encapsulated data. L2TP messages are divided into data messages and control messages. Different control messages can establish different channels. Data messages can only be transmitted in the channel corresponding to the channel number after the channel is established by the control message. [0003] The L2TP message contains a type field (T) and a channel number. The type field (T) can be used to distinguish a data message or a control message. The channel nu...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/56H04L29/06H04L12/861
Inventor 黄彤口金海王如栋卢方
Owner ALCATEL LUCENT SHANGHAI BELL CO LTD
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