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A verification method and device for afdx bus message data source

A message data and bus technology, applied in the field of communication, can solve problems such as AFDX bus communication errors, system reliability and security risks, and achieve the effect of improving system reliability and security

Active Publication Date: 2022-01-28
BEIJING RUNKE GENERAL TECH
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Problems solved by technology

[0004] The inventors analyzed a large amount of AFDX bus communication data and found that in the current AFDX bus communication process, there are abnormalities such as source comport configuration errors at the sending end, which lead to AFDX bus communication errors, which bring risks to system reliability and security.

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  • A verification method and device for afdx bus message data source
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  • A verification method and device for afdx bus message data source

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Embodiment Construction

[0039] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0040] The inventor found by analyzing a large amount of AFDX bus communication data that in the current AFDX bus communication process, there are abnormalities such as source comport configuration error at the sending end, which leads to the phenomenon of AFDX bus communication error. The identifier is not filled into the data frame, which causes the receiving end of the AFDX bus to fail to verify the source communication port.

[0041]Specifically, if there ...

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Abstract

The invention provides a method and device for verifying the data source of an AFDX bus message, which is applied to the receiving end of the AFDX bus. When receiving the data frame sent by the sending end of the AFDX bus, the data frame is analyzed to obtain the source communication port Identity verification information of the source communication port, wherein the identity verification information of the source communication port is set in the reserved bytes of the payload field in the data frame, and the identity verification information is used to verify that the port configuration parameters are consistent with the Whether the source communication port matches, if it matches, it is determined that the data frame is legal, and if it does not match, it is determined that the data frame is not legal. The invention realizes the verification of the AFDX bus message data source, and improves the reliability and safety of the system.

Description

technical field [0001] The present invention relates to the communication field, and more specifically, relates to a method and device for verifying an AFDX bus message data source. Background technique [0002] AFDX (Avionics Full Duplex Switched Ethernet, Avionics Full Duplex Switched Ethernet) bus terminals perform data communication based on Comport (Communication Port, communication port). [0003] A pair of source Comport and destination Comport of AFDX bus sending end and receiving end utilize UDP (UserDatagramProtocol, User Datagram Protocol) information, IP (Internet Protocol, network protocol) information, and MAC Address (Media Access Control Address, MAC address) in VL ID (virtual link identifier, virtual link identifier), etc. for identification, specifically through five parameters of "UDP source port + source IP + destination MAC (VL ID) + destination IP + UDP destination port". When sending a message, the sender fills the above five parameters configured by ...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/00H04L12/40
CPCH04L1/0061H04L12/40H04L2012/4028
Inventor 张智斌
Owner BEIJING RUNKE GENERAL TECH
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