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A Realization Method of Extensible Rule Space

A technology for implementing methods and rules, applied in the direction of transmission systems, electrical components, etc., can solve the problem that the Egress module does not have programmability

Active Publication Date: 2022-02-25
深圳市东晟数据有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] 2. The tcam configuration rules are the same based on the pipeline, and the egress module is not programmable, so the priority of the rules is determined, and corresponding changes cannot be made according to actual needs

Method used

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  • A Realization Method of Extensible Rule Space
  • A Realization Method of Extensible Rule Space
  • A Realization Method of Extensible Rule Space

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Embodiment Construction

[0032] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0033] This embodiment provides a method for implementing an expandable rule space, including an Ingress processing module, a TM processing module, and an Egress processing module. The Ingress processing module includes a number of pipeline input ports, which are successively set as pipeline 1 input port to pipeline N For input ports, the Egress processing module includes several pipeline output ports, which are sequentially set as pipeline 1 output port to pipeline N output port, and the numbers of input ports and output ports are consistent. Such as figure 1 and figure 2 As shown, it is a conventional switching chip processing framework and its flow chart. Since the Ingress processing module and the Egress processing module are not programmable, the incoming packets are similar to parallel output, resulting in a small overall capacity.

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PUM

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Abstract

The invention discloses a method for realizing an expandable rule space, comprising steps: S1, the message enters the input port of pipeline 1; S2, after querying the rule table 1, carrying the hit result of the query rule 1 into the message, and outputting it to the TM Processing module; S3 and TM processing modules specify forwarding to any output port through internal decision-making, and add 1 output with information to any input port of pipeline 2 input port ~ pipeline N input port, and set it as pipeline X input port Port; S4. According to the loopback function of steps S2 and S3, until the message passes through all remaining input ports and output ports. The invention is based on the pipeline folding technology, realizes different programming of each pipeline, expands the rule space and improves resource utilization efficiency, gets rid of the limitation of the priority of the rules fixed by the chip, and can dynamically adjust the output of the rules according to actual needs priority.

Description

technical field [0001] The invention relates to the technical fields of data communication and data security, in particular to a method for realizing an expandable rule space. Background technique [0002] The three major operators and relevant national security departments need to analyze and filter a large amount of high-speed traffic in the network topology to complete traffic aggregation, collection, distribution, deep packet inspection (DPI), deep flow inspection (DFI), and deep packet extraction (DPE), protocol and application identification, protocol restoration, flow control and other processing. The methods of filtering processing include mask rules, precise rules, regular expression rules, string rules, compound rules and derived rules combined by mask / exact and strings. [0003] At present, in the front end of the data communication and security field, when collecting and filtering large-capacity traffic, the traffic is basically screened, filtered and distribute...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L45/745
CPCH04L45/74591
Inventor 涂明杨晶亮沈圳
Owner 深圳市东晟数据有限公司