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Parallel search method and system of openflow

A search engine and rule technology, applied in transmission systems, digital transmission systems, electrical components, etc., can solve the problems of low table lookup efficiency and high power consumption, achieve fast message classification and forwarding, and overcome low efficiency

Active Publication Date: 2015-12-02
NAT UNIV OF DEFENSE TECH
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AI Technical Summary

Problems solved by technology

[0007] The problem to be solved by the present invention is to propose a classification method for parallel search of Openflow to overcome the problems of low efficiency and high power consumption of Openflow complex rule lookup tables

Method used

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  • Parallel search method and system of openflow
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  • Parallel search method and system of openflow

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Embodiment Construction

[0029] The core of the present invention is to vertically segment and compress a flow table in Openflow according to actual needs, each engine processes its own header field in parallel, and after the processing is completed, the processing results are summarized and compared to find the corresponding match of the message. Rules, so as to achieve the purpose of fast packet classification and forwarding.

[0030] The following is a specific description of its implementation details in conjunction with the chart.

[0031] refer to figure 2 , figure 2 It is a system structure diagram of the present invention, and the present invention includes a rule configuration module, a message analysis module, a search engine, and an arbitration selection module. Wherein, the rule configuration module is a module that interacts with the software, and is responsible for receiving message rule information configured by the software. The main function is to identify and distribute the rule...

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Abstract

The invention relates to a parallel search method and system of Openflow. According to the method and system, a compression storage mode through longitudinal segmentation of a rule table is proposed for multi-component and multi-list data search of the Openflow, so as to meet the requirement for storage space. A fast search and forwarding function is realized through parallel search of engines; a flow table in the Openflow is longitudinally segmented, compressed and stored, and the engines process respective header field parts, so that fast massage sorting and forwarding are achieved; and the problems of low table look-up efficiency due to complicated Openflow rules and large power consumption are solved.

Description

technical field [0001] The invention relates to Internet data classification search, in particular to the classification search of Openflow multi-data domain table items and the storage management method for table items RAM. Background technique [0002] In the network, with the advancement of various transmission technologies, the growth rate of network bandwidth has gradually exceeded the growth rate of CPU processing power, and this gap has a tendency to further increase. The rapid development of network applications has promoted the increase of network transmission bandwidth, and the transmission medium is no longer the bottleneck of the entire system; on the contrary, the transmission nodes in the network, that is, routers, switches and other devices that perform network data processing and forwarding, are becoming the core of the network system. bottleneck. [0003] However, in order to achieve differentiated services, policy-based forwarding, high-level switching and...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/701H04L12/741H04L45/74
Inventor 李韬张彦龙王宝生吕高锋孙志刚陈一骄崔向东赵国鸿毛席龙
Owner NAT UNIV OF DEFENSE TECH
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