Interface Connection Detection via Auto Negotiation Parameter Matching
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Solution Overview
Problem
Existing methods fail to prevent mixed insertion of network cables into communication devices, leading to errors and faults during initial installation and maintenance, especially when multiple interfaces of the same type are involved, which can result in incorrect connections and service disruptions.
Innovation Solution
A method and apparatus that utilize auto negotiation operations to set and compare working parameters between interfaces, sending alarms for mismatched connections and adjusting parameters to ensure correct communication, thereby preventing mixed insertion and improving reliability and maintainability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If auto negotiation operation is used to detect interface connections, then connection accuracy is improved, but detection complexity increases
Solution Approach 1:
The interface automatically performs self-detection by initiating auto negotiation operations with connected devices. The system uses its own resources (processing units, communication interfaces) to detect connection status and parameter matching without requiring external detection equipment, thereby improving detection accuracy while avoiding additional device complexity.
Solution Approach 2:
The auto negotiation operation establishes a feedback mechanism where each device sends and receives parameter information, compares the received parameters with its own configured parameters, and determines connection validity based on the comparison result. This feedback loop enables accurate detection while using standard communication protocols rather than complex dedicated detection circuits.
2Reliability
If parameter comparison is performed to verify interface matching, then connection reliability is improved, but processing time increases
Solution Approach 1:
The system pre-configures working parameters (such as speed, duplex mode) in the interface before actual connection establishment. When a connection is made, the auto negotiation operation quickly compares these pre-set parameters with the connected device's parameters, enabling rapid reliability verification without time-consuming measurements or tests.
Solution Approach 2:
The invention utilizes standard communication parameters that can be quickly exchanged and compared during the auto negotiation process. By changing and comparing these parameters (speed, flow control, duplex mode) through existing communication channels, the system achieves reliable parameter verification without adding significant detection time.
Data Source
AI summary
A method for detecting an interface connection between devices is disclosed, including setting a recommended working parameter of a first interface as a first working parameter; obtaining, by using an auto negotiation operation, a second working parameter of a second interface; determining whether the second working parameter is equal to the first working parameter, and if the second working parameter is not equal to the first working parameter, sending an alarm to indicate that a connection is unmatched; if the second working parameter is equal to the first working parameter, setting the recommended working parameter of the first interface as a third working parameter, sending, by using the auto negotiation operation, the third working parameter to the second interface, and receiving the third working parameter sent by a second device through the second interface, so that the first interface communicates with the second interface by using the third working parameter.