Network Configuration Comparison for Packet Forwarding Errors

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Solution Overview

Problem

Existing computer networks, particularly in automated motor vehicles, face challenges in identifying errors and anomalies due to external interference or internal systematic errors, leading to undesirable data packet forwarding or discarding behaviors.

Innovation Solution

A device and method that compares an actual configuration of network coupling elements with a target configuration, utilizing diagnostic counters and predefined limits to identify errors by sending test packets and analyzing packet discards, ensuring network integrity and safety.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If the coupling element forwards data packets based on actual configuration, then network communication efficiency is improved, but network reliability deteriorates due to external interference or systematic errors falsifying the configuration

Engineering Contradiction:
Improvenetwork communication efficiencyVSAvoidnetwork reliability
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The patent applies preliminary action by comparing the actual configuration with the target configuration before data packet forwarding occurs. The error identification device continuously monitors and compares configurations to detect any falsifications caused by external interference or systematic errors, enabling preventive detection before erroneous forwarding behavior occurs

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent implements feedback by using diagnostic counters to track the number of discarded data packets and comparing this against expected values. When the actual configuration deviates from the target configuration, the system generates feedback signals to identify and report errors, creating a closed-loop monitoring system that continuously validates network integrity

Inventive Principle:
Principle #23Feedback

2Measurement precision

If diagnostic counters are used to monitor packet discards, then error detection capability is improved, but device complexity increases

Engineering Contradiction:
Improveerror detection capabilityVSAvoiddevice complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent uses diagnostic counters as intermediary elements that mediate between the coupling element's packet forwarding decisions and the error identification device. These counters serve as simple measurement tools that track discarded packets without requiring complex analysis, providing precise error detection through straightforward counting and comparison operations

Inventive Principle:
Principle #24Intermediary (Mediator)

Data Source

PatentUS12452183B2Identifying errors in a computer network by comparing an actual configuration with a target configuration
Publication Date: 2025.10.21 BAYERISCHE MOTOREN WERKE AG
  • US12452183B2 patent drawing

AI summary

According to one aspect, the invention relates to a device for identifying errors in a computer network. The network comprises at least one coupling element, which interconnects at least two network subscribers. The coupling element comprises a memory for an actual configuration of the coupling element. The coupling element forwards or discards data packets according to the actual configuration. The device has a target configuration for the coupling element, and the device is designed to compare the actual configuration with the target configuration.