Optical Module In-Band Link Status Feedback for Real-Time Anomaly Response
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Solution Overview
Problem
Existing methods for real-time monitoring of link status in high-speed Ethernet and coherent optical communication systems, such as those used in AI and HPC, suffer from delays and increased costs due to periodic status updates and complex hardware/software designs, which are inadequate for high real-time performance requirements.
Innovation Solution
A signal processing device within an optical module that includes a first and second signal processing module and an anomaly processing module to detect and insert indication information into Ethernet and optical communication data streams in both egress and ingress directions, using hardware circuits for real-time anomaly detection and in-band signaling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If periodic status updates are used for link status monitoring, then the monitoring can be implemented, but delays occur and real-time performance is insufficient
Solution Approach 1:
The patent transitions from periodic status updates to event-driven anomaly detection. The optical module continuously monitors data streams and immediately generates indication information when anomalies are detected, eliminating the delays inherent in periodic sampling while maintaining monitoring reliability.
Solution Approach 2:
The patent implements a feedback mechanism where the optical module inserts indication information about detected anomalies into the data stream, which is then transmitted to the switch device. This closed-loop feedback enables real-time response to link status changes without requiring periodic polling.
2Reliability
If complex hardware/software designs are used for link status monitoring, then monitoring capability is achieved, but costs increase
Solution Approach 1:
The optical module performs self-monitoring of its own data streams and generates anomaly indication information autonomously. This self-service capability eliminates the need for complex external monitoring hardware or software, reducing overall system complexity while maintaining monitoring effectiveness.
Solution Approach 2:
The patent merges the link status monitoring function into the optical module's existing data processing path. By integrating anomaly detection and indication generation within the optical module itself, the patent eliminates separate monitoring hardware/software components, thereby reducing system complexity and cost.
3Loss of time
If indication information is inserted into data streams for real-time anomaly notification, then response time is improved, but data stream complexity increases
Solution Approach 1:
The patent extracts anomaly indication information as a separate element that can be inserted into existing data stream structures. This approach allows real-time anomaly notification without fundamentally altering the core data stream format, minimizing complexity increases while maintaining improved response time.
Data Source
AI summary
The present disclosure relates to a high-speed data communication technology, and in particular to a method for processing a data transmission anomaly in an optical module-based communication process, a signal processing device for implementing the method, and an optical module comprising the signal processing device. In some embodiments of the present disclosure, real-time monitoring of data transmission status associated with an egress direction and an ingress direction is realized inside an optical module, and in the event of a transmission anomaly, e.g., when the link involved in data transmission is in degraded status, relevant indication information is transmitted by inserting it into the data stream currently being transmitted.