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Parallel assembly line filtering method based on conversation

A filtering method and pipeline technology, applied in digital transmission systems, data exchange networks, electrical components, etc., can solve problems such as large parallel synchronization overhead, unbalanced load, and large processing capacity, and achieve the effect of avoiding synchronization overhead and improving efficiency.

Inactive Publication Date: 2009-01-14
PEKING UNIV
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  • Summary
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Problems solved by technology

Parallel filtering based on the network message layer needs to maintain a large amount of data information and status information for parallel processing. The overhead of parallel synchronization is high, and the overall parallel efficiency is not high.
Parallel filtering based on the application protocol level will lead to load imbalance, some protocols (such as HTTP) have a large amount of processing, and other protocols are small

Method used

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  • Parallel assembly line filtering method based on conversation
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Embodiment Construction

[0024] How to implement the session-based parallel pipeline filtering method will be described in detail below with reference to the accompanying drawings.

[0025] The specific implementation process of a session-based parallel pipeline filtering method is as follows:

[0026] 1. Initialize the system (such as a firewall) on which the content filtering module relies, and set the parallel number of session data processing pipelines according to the number of CPUs included in the system; four are used in this embodiment;

[0027] 2. Bind the pipeline to a specific CPU according to the number of pipelines and the number of CPUs;

[0028] 3. The flow inflow component transmits the data on the Ethernet to the data packet analysis component, and the data packet analysis component analyzes the incoming data packets and organizes the data packets according to the session;

[0029] Because the data packets belonging to the same session have the same basic information such as source a...

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Abstract

The invention pertains to the field of computer network and data communication technology, specifically to a paralleling production chain filtering method based on session. The paralleling production chain filtering method based on session proposed by the invention, performs parallel processing in the session layer, adopts an optimum mode to resolve the performance bottle-neck of the application layer filtering system, effectively avoid the disproportion of paralleling load caused by uneven load applications, and simultaneously can maintain the original information contained in the application layer.

Description

technical field [0001] The invention belongs to the technical field of computer network and data communication, and in particular relates to a session-based parallel pipeline filtering method. Background technique [0002] With the development of the Internet and the upgrading of attackers' tools and methods, a simple firewall can no longer meet the requirements of network and information security. Network management needs to consider the comprehensive coordination of the entire security system. Filtering the content of the application layer represents a new concept of network security (refer to the document of Chinese Invention Patent Publication No. 200710121322.1). [0003] In a common computer network, a session refers to a virtual connection between two hosts, whereby a specific network application is completed. According to the characteristics of network data transmission, it can be defined that messages with the same quintuple (source / destination IP address, source / d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/08H04L12/56H04L12/801
Inventor 龚晓锐朴爱花陈斌吴开宇邹维范京华
Owner PEKING UNIV
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