Network Diagnosis Control via Message Identifier Verification
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Solution Overview
Problem
Existing network diagnosis systems face challenges in detecting faults within message-based protocol networks, particularly in active communication environments, due to limitations in disturbing diagnosis techniques that can disrupt network communication and pose security risks.
Innovation Solution
An apparatus and method for performing network diagnosis in a message-based protocol network, which includes a diagnosis control device and a diagnosis test device. The diagnosis control device receives a diagnosis request, compares message identifiers, and initiates a disturbing diagnosis test using a test pattern only if the identifiers match a predetermined diagnosis identifier, ensuring safe and controlled network testing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If disturbing diagnosis tests are performed in message-based protocol networks, then the range of detectable faults is extended, but network communication is disrupted and security risks increase
Solution Approach 1:
The patent introduces an intermediary verification mechanism using message identifiers as mediators. The diagnosis control device compares the message identifier in the diagnosis response with the message identifier in the original diagnosis request before executing the disturbing diagnosis test. This intermediary check ensures that only authorized and matched diagnostic operations can proceed, preventing unauthorized disruption while allowing legitimate fault detection.
Solution Approach 2:
The patent changes the state parameter of the network from normal communication mode to diagnosis mode through a controlled state transition. The disturbing diagnosis test is only executed when specific conditions are met (message identifier match), effectively changing the network's operational parameters from data transmission to diagnostic testing temporarily, then returning to normal operation.
2Reliability
If diagnosis tests are performed during active network operation, then real-time fault detection is achieved, but network communication stability deteriorates
Solution Approach 1:
The patent implements periodic action by executing disturbing diagnosis tests only at specific intervals and under specific conditions rather than continuously. The diagnosis control device receives diagnosis requests, verifies message identifiers, and performs tests periodically when conditions are met, allowing the network to alternate between normal operation and diagnostic testing, thus maintaining overall stability while enabling real-time fault detection capability.
3Reliability
If message identifier verification is implemented, then unauthorized diagnosis tests are prevented, but the complexity of the diagnosis control device increases
Solution Approach 1:
The patent extracts the verification function as a separate, independent step from the main diagnosis test execution. The diagnosis control device is configured to specifically extract and compare message identifiers before proceeding with the disturbing diagnosis test. This extraction approach isolates the verification logic, making it a distinct functional block that can be implemented with minimal additional complexity while providing robust authorization control.
Data Source
AI summary
An apparatus configured to perform a network diagnosis procedure within a message-based protocol network comprising a plurality of nodes. The apparatus comprises: a diagnosis test device configured to perform diagnosis tests; and a diagnosis control device. In order to perform the network diagnosis procedure, the diagnosis control device is configured to: receive a diagnosis request from a commander node wherein the diagnosis request is directed to a target node, and wherein the diagnosis request comprises a first message identifier; compare the first message identifier to a predetermined diagnosis identifier; receive a diagnosis response from the target node, wherein the diagnosis response comprises a second message identifier and a test pattern; and compare the second message identifier to a predetermined diagnosis identifier; if the first message identifier and the second message identifier are identical to the predetermined diagnosis identifier: then use the diagnosis test device to perform a diagnosis test using the test pattern.