Application layer-based data segmenting method and device thereof

A data segmentation and application layer technology, applied in the field of communication, can solve the problems of high cost of application protocol analysis, inability to achieve versatility and high efficiency, and achieve the effect of improving accuracy and efficiency

Active Publication Date: 2009-10-14
HANGZHOU DPTECH TECH
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Problems solved by technology

However, the application protocol analysis is very expensive, and specific analysis of

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  • Application layer-based data segmenting method and device thereof
  • Application layer-based data segmenting method and device thereof
  • Application layer-based data segmenting method and device thereof

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[0043] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0044] The core idea of ​​the present invention is: by analyzing the common characteristics of application protocol transmission data, defining segmentation data units according to the protocol type, transmission direction, and protocol content feature definitions, and segmenting the protocol data into logical units that conform to the protocol data, thereby It can meet the data logic of most application layer protocols. In the prior art, the depth detection device uses a fix...

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Abstract

The invention discloses an application layer-based data segmenting method which is applied to depth detection equipment. The method comprises the following steps of: detecting whether the data flow of the user is a data flow with a dialogue by the depth detection equipment and if so, acquiring the segmental characteristics corresponding to the data flow; segmenting the data flow according to the received segmental characteristics by the depth detection equipment to acquire a depth detection unit; and detecting the depth of the depth detection unit by the depth detection equipment. The method can highly effectively solve the segmental problem of the depth detection data of the application layer equipment, match the depth detection unit with the resolving process of the majority of protocols, prevent the data packet of the protocols from being analyzed and be used for depth detection-based reorganization of an engine and flow detection-based establishment and destruction of the detected flow of the engine, thus significantly improving the precision and efficiency of the detection.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to an application layer-based data segmentation method and device. Background technique [0002] With the development of the network, there are more and more services at the application layer (above layer 4). Devices based on the application layer, such as IPS (Intrusion Prevention System, intrusion prevention system), bandwidth management equipment, etc., need to perform in-depth packet inspection. In addition to analyzing the content below layer 4 of IP packets (including source address, destination address, source port, destination port and protocol type), text detection also adds application layer analysis to identify various network applications and their contents. [0003] When performing in-depth inspection on packets, it is necessary to reorganize and copy packets according to different protocols, that is, to copy multiple data packets to the memory for reasse...

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Application Information

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IPC IPC(8): H04L12/26H04L12/56H04L29/08H04L29/06
Inventor 闵捷
Owner HANGZHOU DPTECH TECH
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