Loopback Operations for Faulty Subsystem Layer Identification
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Solution Overview
Problem
Current methods for analyzing and remedying functional and performance issues in multilayered systems are time-consuming and resource-intensive, requiring extensive operator time and system resources.
Innovation Solution
Implementing multiple loopback levels using loopback commands to identify faulty subsystem layers by sequentially subjecting subsystem layers to loopback operations, allowing for prompt identification of performance and functional failures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional debugging methods (analyzing output log files, standard protocol analyzers, sequential layer debugging) are used to identify faulty subsystem layers, then comprehensive analysis can be performed, but the process consumes considerable operator time and system resources
Solution Approach 1:
The system segments the multilayered subsystem into distinct layers, each with its own loopback test capability. By dividing the complex system into testable segments, the patent enables targeted fault isolation without requiring comprehensive analysis of the entire system, thus reducing debugging time while maintaining identification accuracy.
Solution Approach 2:
The patent implements preliminary loopback tests at each subsystem layer before proceeding to higher-level debugging. This preliminary action allows potential faults to be detected and isolated early in the testing process, preventing wasted time on subsequent debugging steps for already-identified faulty layers.
2Measurement precision
If traditional debugging methods are used to analyze multilayered systems, then thorough failure analysis can be achieved, but significant system resources are expended
Solution Approach 1:
The patent extracts the fault detection function from complex traditional debugging processes by implementing dedicated loopback test mechanisms at each subsystem layer. This extraction allows for targeted resource allocation to only the necessary testing components, reducing overall system resource consumption while maintaining thorough fault detection capability.
Solution Approach 2:
Each subsystem layer performs self-diagnosis through automated loopback tests, eliminating the need for extensive external debugging resources. The subsystems serve themselves by automatically identifying and reporting faults, significantly reducing the system resources required for comprehensive failure analysis.
3Difficulty of detecting and measuring
If sequential layer-by-layer debugging is performed, then systematic fault isolation can be achieved, but the process is time-consuming
Solution Approach 1:
The patent performs preliminary loopback tests at each layer before proceeding to the next, systematically eliminating faulty layers early in the process. This preliminary action at each stage maintains systematic fault isolation while dramatically improving debugging efficiency by preventing progression through known-good layers.
Solution Approach 2:
The system implements feedback mechanisms where loopback test results from each subsystem layer immediately inform the debugging process. This feedback allows the system to adaptively skip already-tested layers and focus resources on unidentified fault locations, maintaining systematic analysis while improving overall debugging productivity.
Data Source
AI summary
Methods, systems, and computer readable media for utilizing loopback operations to identify a faulty subsystem layer in a multilayered system are disclosed. One method includes executing a plurality of loopback operations at a respective plurality of loopback points positioned among subsystem layers of a multilayered system and detecting a failed loopback operation among the plurality of loopback operations. The method further includes identifying a faulty subsystem layer among the subsystem layers by comparing the failed loopback operation and a previously conducted successful loopback operation corresponding to a preceding subsystem layer that is adjacent to the faulty subsystem layer within the multilayered system.