Optical Module Link Negotiation Information Retrieval
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Solution Overview
Problem
The reliability of obtaining optical module link negotiation information is low due to transient power interruptions, abnormal link resets, and compatibility issues with optical modules that do not support write operations on partition selection fields.
Innovation Solution
A method that modifies the optical module readable partition information into the partition that stores link negotiation information when the recorded obtaining times do not reach a preset threshold, and re-obtains the information, ensuring successful retrieval of link negotiation data, including connector type, photoelectric parameters, and other essential details.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the partition information is modified directly without verification, then the obtaining process can proceed, but reliability decreases due to transient power interruptions or abnormal link resets occurring between modification and reading
Solution Approach 1:
The patent applies preliminary action by verifying the partition selection field immediately after modification and before proceeding with the read operation. This ensures the optical module is in the correct state to read the link negotiation information, preventing failures due to transient power interruptions or abnormal link resets that might occur between unverified modification and reading operations.
2Reliability
If the partition selection field is written to for all optical modules, then link negotiation information can be obtained, but compatibility decreases for optical modules that do not support write operations on this field
Solution Approach 1:
The patent applies local quality by checking the write protection status of the partition selection field before attempting to modify it. Different optical modules have different capabilities regarding write operations on this field, so the system adapts its behavior locally based on the specific module's characteristics. For modules where writing is not supported, the system skips the modification step and proceeds directly to reading, ensuring compatibility while maintaining reliability for modules that do support writing.
3Reliability
If multiple verification steps are added to ensure correct partition selection, then reliability improves, but device complexity increases
Solution Approach 1:
The patent applies feedback by implementing a verification step that checks whether the partition selection field contains the expected value after modification. This feedback mechanism ensures the optical module is in the correct state to read link negotiation information. The feedback loop includes conditional logic that can retry the modification or skip to reading based on the verification result, providing reliable operation without excessive complexity through structured decision-making.
Data Source
AI summary
An optical module link negotiation information obtaining method, a device, and a system are provided to include: obtain first information of an optical module readable partition; when the partition indicated by the first information is different from a partition that stores link negotiation information in the optical module, and a recorded quantity of optical module link negotiation information obtaining times does not reach a preset threshold, modify the first information of the optical module readable partition into information indicating the partition that stores the link negotiation information to make the partition that stores the link negotiation information as an updated optical module readable partition; and re-obtain second information of the updated optical module readable partition, and when the updated partition indicated by the second information is the same as the partition that stores the link negotiation information in the optical module, obtain optical module link negotiation information.