Optical Switch Device for High-Speed Data Transmission Error Handling
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Solution Overview
Problem
Current technologies cannot transmit data at rates of 40 Gbps and/or 100 Gbps as a single stream through existing infrastructure in data centers and the Internet, posing a challenge for high-speed data transmission.
Innovation Solution
A switch device and optical switch device that receive messages with error notifications within specific subsets of PCS lanes, allowing for signal degradation detection and corrective actions, such as signal amplification or rerouting, to maintain high-speed data transmission over existing copper and fiber cables.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If data is transmitted at rates of 40 Gbps and/or 100 Gbps through existing infrastructure, then high-speed data transmission is achieved, but signal degradation occurs
Solution Approach 1:
The data stream is divided into multiple PCS lanes for parallel transmission. Each lane can be independently monitored and managed, allowing error notifications to be inserted into specific lanes without affecting others. This segmentation enables high-speed transmission while maintaining reliability through selective error handling.
Solution Approach 2:
Error notifications are inserted into PCS lanes to provide feedback about signal degradation. The switch device monitors these error notifications and can take corrective actions such as signal amplification or rerouting. This feedback mechanism enables proactive management of signal quality during high-speed transmission.
2Reliability
If error notifications are inserted into all PCS lanes, then complete error coverage is achieved, but computational resources and time are consumed
Solution Approach 1:
Error notifications are inserted into only specific PCS lanes (first subset) rather than all lanes. This local quality approach places error monitoring where most needed while reducing overall computational burden. The switch device can send different signals based on errors detected in specific lane subsets, optimizing the balance between detection coverage and resource consumption.
Data Source
AI summary
In some embodiments, an apparatus includes a switch device that can be operatively coupled to a network having a set of links. The switch device can receive at a first time, a message having a set of physical coding sublayer (PCS) lanes. The message can include an error notification within a first subset of PCS lanes from the set of PCS lanes and not within a second subset of PCS lanes from the set of PCS lanes. The error notification is associated with signal degradation of a link from the set of links, where the switch device can send a first signal in response to receiving the message at the first time. The switch device can also receive at a second time a message without the error notification, and the switch device can send a second signal in response to receiving the message at the second time.