FlexE Overhead Bit Error State Transmission
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Solution Overview
Problem
The FlexE protocol lacks a defined mechanism for indicating bit error states between the local and remote ends, leading to isolation and reduced reliability in 400G optical module networks, where failure of one physical channel can disrupt the entire logical channel.
Innovation Solution
Implementing a method to acquire, store, and transmit bit error state information within the FlexE protocol overhead frame, allowing the local end to set and transmit bit error state information to the remote end, enabling negotiation and protection actions, thereby improving network reliability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If multiple physical channels are bundled into one logical channel to deliver 400G services on 100G optical modules, then the cost is reduced and bandwidth is increased, but the reliability is reduced because failure of one physical channel causes failure of the entire logical channel
Solution Approach 1:
The patent segments the logical channel into multiple independent physical channels, each with its own bit error rate monitoring. This allows individual channels to be identified and managed separately, enabling selective failure isolation while maintaining overall service continuity through the bundled structure.
Solution Approach 2:
The patent implements feedback mechanisms by monitoring bit error rates on each physical channel and transmitting this information to the opposite end. This feedback enables dynamic detection of channel quality and supports protection actions when errors are detected, improving reliability while maintaining the cost-effective bundled structure.
2Device complexity
If bit error state indication is not defined in the FlexE protocol, then the protocol structure is simple, but the local end and opposite end are isolated and cannot perform negotiation and protection actions
Solution Approach 1:
The patent introduces bit error rate indication fields as intermediary elements within the FlexE protocol overhead. These fields serve as mediators that carry error state information between the local end and opposite end, enabling communication and negotiation without significantly complicating the overall protocol structure.
Solution Approach 2:
The patent modifies the protocol by adding bit error rate indication parameters to the existing FlexE frame structure. This changes the protocol state information available to both ends, enabling error detection and protection actions while maintaining backward compatibility and minimal structural changes.
Data Source
AI summary
Disclosed is an information transmission method and device, and a computer storage medium. The method is applied to a local end in a flexible Ethernet (FlexE) network structure and includes: when receiving an information block of a FlexE frame, acquiring, by the local end, bit error state information in the received information block according to a preset acquisition policy; storing, by the local end, the bit error state information at a preset position in a FlexE protocol overhead frame; and transmitting, by the local end, the FlexE protocol overhead frame storing the bit error state information to an opposite end.