MDIO Check Value Mechanism for Optical Module Transmission Errors
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Solution Overview
Problem
In MDIO communication, the lack of a handshake check mechanism leads to undetected transmission errors between the host and optical module, resulting in packet loss and service interruptions, as errors during data transmission are not corrected in time.
Innovation Solution
A transmission method and device implementing a check mechanism where frames are used to calculate and compare check values at both the host and optical module, determining if data reading or writing operations need to be repeated based on matching check values, ensuring accurate data transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If no check mechanism is implemented in MDIO communication, then communication simplicity is maintained, but transmission errors cannot be detected and corrected in time
Solution Approach 1:
The patent implements a feedback mechanism by calculating check values at both the host and optical module, then comparing these check values to verify transmission accuracy. The optical module sends back check values to the host, which compares them against locally calculated values to detect errors. This feedback loop enables real-time error detection and correction while maintaining communication reliability.
Solution Approach 2:
The patent applies preliminary action by calculating check values before data transmission occurs. The host calculates a check value for the data to be sent, and the optical module calculates a check value for received data before processing. These pre-calculated check values are then compared to verify transmission integrity, allowing error detection before the data is fully processed or acted upon.
2Reliability
If check values are calculated and compared at both host and optical module, then transmission errors can be detected and corrected, but communication overhead increases
Solution Approach 1:
The patent changes parameters by using compact check value representations and efficient comparison mechanisms. The check values are calculated using standardized algorithms that balance computational complexity with error detection capability. By optimizing the check value calculation and comparison process, the patent achieves reliable error detection while minimizing the time overhead associated with these additional verification steps.
Data Source
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AI summary
The present invention discloses a transmission method and device based on a management data input/output multi-source agreement. The method includes that: at least one frame is sent, and a host indicates, according to opcodes carried by the at least one frame, to perform a data reading operation or a continuous data reading operation or a data writing operation on an optical module; the at least one frame is used, during checking, for respectively calculating check values at the host and the optical module; it is determined, according to a result of comparison between the check values, whether the check values are correct, and it is decided whether it is needed to repeat the data reading operation or the continuous data reading operation or the data writing operation.