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Method, system and storage medium for message deduplication in parallel redundant network

A redundant network and message technology, applied in the computer field, can solve the problems of affecting message transmission rate, large memory consumption of tables, performance loss, etc.

Active Publication Date: 2021-12-28
湖南麒麟信安科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method can handle out-of-sequence packets well, but it needs to look up and build tables for each packet, and also deal with the dynamic growth of tables and the recycling of table items after aging, which has certain performance limitations. Loss, which affects the transmission rate of packets
In addition, the memory consumption of the table is relatively large

Method used

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  • Method, system and storage medium for message deduplication in parallel redundant network
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  • Method, system and storage medium for message deduplication in parallel redundant network

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Embodiment Construction

[0032] It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0033] In the following description, use of suffixes such as 'module', 'part' or 'unit' for denoting elements is only for facilitating description of the present invention and has no specific meaning by itself. Therefore, 'module', 'part' or 'unit' may be used in combination.

[0034] Please refer to figure 1 , figure 1 It is a schematic diagram of the hardware structure of the computer system provided in each embodiment of the present invention. The computer system may include components such as a communication module 01 , a memory 02 , and a processor 03 . Those skilled in the art can understand that, figure 1 The computer systems shown in may also include more or fewer components than shown, or combine certain components, or have different arrangements of components. Wherein, the processor 03 is respectively c...

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Abstract

The invention discloses a message deduplication method, system and computer-readable storage medium in a parallel redundant network. By combining the boundary interval window and the bitmap to judge whether there is a message out of order and whether the message is received or not, the best performance can be obtained when the network condition is stable and there is no out of order; when the network is jittered or unstable , when out-of-order messages are generated, it can correctly process the out-of-order messages, which is superior to the algorithm of deduplication through the lookup table in terms of performance and memory requirements.

Description

technical field [0001] The invention relates to the technical field of computers, in particular to a message deduplication method and system in a parallel redundant network and a computer-readable storage medium. Background technique [0002] In order to ensure high reliability of network communication, parallel redundant network technology (such as PRP (Parallel Redundancy Protocol) defined by the IEC62439-3 standard) has been widely used in security-critical fields such as finance and national power grid. The main principle of the parallel redundant network is dual-network parallelism. Each node is connected to two mutually isolated and parallel networks through two physical network cards. A physical NIC sends two identical packets to two parallel networks, and the receiving end performs deduplication according to the source MAC address and the sequence number in the packet. For two packets with the same source MAC and sequence number, the first arrival The ones that arri...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/18H04L1/16H04L12/953H04L47/43
CPCH04L1/1841H04L1/1832H04L1/1614H04L49/9057
Inventor 秦云高石勇孙利杰杨涛刘文清陈松政颜跃进
Owner 湖南麒麟信安科技股份有限公司