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A scalable network protocol analysis system and method

A network protocol and parsing method technology, applied in the field of network protocol parsing, to achieve the effect of avoiding a long update cycle

Active Publication Date: 2021-07-16
INST OF COMPUTING TECH CHINESE ACAD OF SCI +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Therefore, an FPGA-based scalable network protocol analysis unit is considered to solve the performance and flexibility of backbone network message analysis.

Method used

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  • A scalable network protocol analysis system and method
  • A scalable network protocol analysis system and method
  • A scalable network protocol analysis system and method

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Experimental program
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Embodiment Construction

[0029] The specific application environment of the present invention, such as figure 1 Shown:

[0030] 1. The front end needs to have a network interface controller that can provide messages whose outermost layer is the link layer or above.

[0031] 2 Requires a host or user interface to transmit control information and status information.

[0032] 3. The network protocol identification result can be sent to subsequent modules for further processing, such as rule filtering, message forwarding, etc.

[0033] The overall architecture of the system of the present invention, such as figure 2 Shown:

[0034] Input message RAM: used to store the message to be analyzed.

[0035] Message parsing state machine: used to control the parsing process of the entire message.

[0036] Protocol type encoding table: Each protocol message corresponds to an encoding instruction, and the encoding instruction of the next layer protocol can be obtained through the protocol type encoding table....

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Abstract

The present invention proposes an expandable network protocol analysis system and method, which relate to the technical field of network protocol analysis. The method includes obtaining network protocol messages to be analyzed, and performing instructions in the network messages to be analyzed according to a protocol lookup table. Decoding is performed, and the decoding result is stored; the control logic analyzes the decoding result, stores the analysis result, and obtains the instruction of the next layer network protocol message through the protocol type coding table after the analysis is completed. The present invention utilizes FPGA to provide a method for easily adding a new network protocol analysis function under the premise of ensuring the data processing capability of the backbone network, and avoids the problem of long update period when traditional high-speed network processing equipment encounters new network protocols .

Description

technical field [0001] The invention relates to the technical field of network protocol analysis, in particular to an expandable network protocol analysis system and method. Background technique [0002] With the development of the Internet, the traffic collection and processing of the backbone network are more and more used in government network management, big data analysis and other fields. The traffic collection of the backbone network has high requirements for the real-time processing ability of network data, and There are various protocols for backbone network traffic, and network devices need to meet both processing performance and scalability requirements. [0003] The general network protocol processing flow is generally analyzed in sequence according to the hierarchical structure of the protocol stack, but the network environment of the backbone network is complex, and network protocols and protocol combinations (such as tunnel messages, etc.) that are not consider...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/06
CPCH04L69/03H04L69/18H04L69/22
Inventor 李旭谭光明
Owner INST OF COMPUTING TECH CHINESE ACAD OF SCI