Network data flow recognizing system and method

A technology of identification system and identification method, which is applied in the field of network data flow identification system, can solve problems such as misidentification and unrecognizable P2P data flow identification, and achieve the effect of reducing the amount of calculation

Inactive Publication Date: 2006-10-25
江苏钊阳冷暖科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] The technical problem to be solved by the present invention is to provide a system and method for network data flow ide

Method used

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  • Network data flow recognizing system and method
  • Network data flow recognizing system and method
  • Network data flow recognizing system and method

Examples

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Example Embodiment

[0027] Such as figure 1 As shown, in the first embodiment of the network data flow identification system of the present invention, the network data flow identification system is connected to a network based on the TCP / IP protocol and passes through a splitter or a network mirror server (not shown in the figure) To obtain the data stream in the network, it includes a data stream identification module 13 and a data stream feature library 14.

[0028] The current P2P network TV mainly includes PPLIVE, boiling point, Coolstreaming, Ppstream, CCIPTV, etc. The corresponding characteristics of the data stream are as follows:

[0029] (1) PPLIVE network TV flow characteristics: UDP flow characteristics: in a UDP flow there is a message with a source port of 4004 or the first four bytes of the payload being 0x01000002; TCP flow characteristics: a source port in a TCP flow is 8008 or packets with the first four bytes of the payload being 0x2c000000;

[0030] (2) Boiling-point Internet TV t...

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Abstract

The system includes recognition module for data stream and character base for data stream. The character base for data stream includes multiple characters of network data streams. Based on characters of network data stream in character base for data stream, the recognition module for data stream identifies specific data stream. The invention also discloses relevant method for identifying network data stream. Through matching to characters of network data streams, the invention identifies application type of data stream. Identifying classified data stream reduces amount of calculation for matching character effectively so as to reach purpose for recognizing application service of P2P network television.

Description

technical field [0001] The invention relates to the field of network data transmission, and more specifically, to a system and method for identifying network data streams. Background technique [0002] With the development of broadband network, streaming media, codec, information encryption and storage technology, more and more video services are carried based on TCP / IP protocol network. This type of video service based on IP and related technologies is called Internet TV (IPTV) (different from the digital TV broadcast service based on DVB (Digital Video Broadcast, digital video broadcast)). Along with the normal development of IPTV services, a new Internet TV service based on P2P (Peer-to-Peer, peer-to-peer) mode is gradually used by more broadband users. [0003] P2P business itself is an unmanageable traffic. Judging from the existing application situation, its erosiveness to bandwidth and the unmanagement of its own routing have brought a huge burden to the network and...

Claims

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Application Information

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IPC IPC(8): H04L29/06G06F17/30
Inventor 刘竟郑志彬刘廷永孙知信
Owner 江苏钊阳冷暖科技有限公司
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