Method and apparatus for data stream detection

A technology of data flow and auxiliary flow, applied in the field of network communication, which can solve the problem of inability to detect data flow

Active Publication Date: 2009-06-17
CHENGDU HUAWEI TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Existing network data flow detection schemes can only detect data flows that contain obvious software protocol type information, that is, only when the characteristic information carried by the data flow can clearly reflect the protocol ...

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  • Method and apparatus for data stream detection
  • Method and apparatus for data stream detection

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Embodiment Construction

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0022] The embodiment of the present invention detects the type of the protocol that generates data flow matching through the association of multiple flows generated when the software is running. By setting the main stream feature and auxiliary stream feature corresponding to different protocol types, and detecting the data stream according to the main stream feature and auxiliary stream feature, the protocol type matched by the data stream is determine...

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Abstract

The embodiment of the invention discloses a data flow detecting method and a device, wherein the method comprises the following steps: judging whether feature information carried by data flow is matched with main flow feature information or not, recording source IP information of the data flow and matching results in an association list if the judging result is positive, searching the source IP information recording of the data flow in the association list if the judging result is negative, and doing auxiliary flow feature matching to the data flow if the source IP information recording of the data flow is found, wherein the association list is used to record the source IP information and matching results of the data flow, which are matched with main flow features or auxiliary flow features. The embodiment of the invention assures protocol types which are corresponding to the data flow which does not carry obvious feature information through adopting the detecting method that main flow feature information and auxiliary flow feature information are combined, and achieves detection to data flow which does not carry obvious feature information.

Description

technical field [0001] The invention relates to the technical field of network communication, in particular to a data flow detection method and device. Background technique [0002] With the continuous growth of Internet users and the continuous expansion of business, security issues have become increasingly prominent, especially the security of the metropolitan area network is facing an unprecedented severe test, business interruption and business loss are emerging one after another, especially VOIP (Voice over Internet Protocol , Internet Protocol Telephony) out of control impacted the telecom voice operation mode, and the long-distance calls, international calls and revenues all dropped sharply; the abuse of disorderly P2P (Peer-to-Peer, point-to-point) services occupied more than 50% of the network bandwidth, resulting in network Degraded performance quality and congestion, massive consumption of bandwidth for zero benefit. [0003] In response to the above-mentioned st...

Claims

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Application Information

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IPC IPC(8): H04L12/26H04L12/56
Inventor 王飞黄敏史晓华肖峰朱洪亮
Owner CHENGDU HUAWEI TECH
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