FlexE Slot Configuration Synchronization in Service Flow Adjustment
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Solution Overview
Problem
Current methods for adjusting transmission bandwidth in FlexE networks are not applicable to end-to-end transmission scenarios with intermediate network nodes, leading to service damage due to inaccurate timing for switching slot configurations.
Innovation Solution
A service flow adjustment method that unifies the timing for all nodes on a network to switch slot configurations by carrying slot adjustment information within the client signal flow, ensuring that the receive end correctly restores the service flow.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the current negotiation mechanism for switching slot configuration is used, then point-to-point transmission can be achieved, but end-to-end transmission with intermediate network nodes cannot be supported
Solution Approach 1:
The patent introduces slot adjustment information as an intermediary element that is carried within the client signal flow. This intermediary enables intermediate network nodes to correctly interpret and handle slot configuration switching, bridging the gap between transmit end and receive end without requiring direct negotiation between them. The slot adjustment information acts as a mediator that synchronizes all nodes along the transmission path.
2Productivity
If slot configuration switching is performed without unified timing, then transmission flexibility is maintained, but service damage occurs due to inaccurate timing at the receive end
Solution Approach 1:
The patent implements a feedback mechanism where the transmit end inserts slot adjustment information into the client signal flow, which contains timing indicators for slot configuration switching. Intermediate nodes and the receive end extract this information to synchronize their slot configuration changes with the transmit end, ensuring accurate timing without sacrificing bandwidth adjustment flexibility.
3Ease of operation
If separate negotiation is performed between each pair of nodes, then local slot configuration can be optimized, but network-wide synchronization cannot be achieved
Solution Approach 1:
The patent merges the slot configuration control function into the existing client signal flow that already traverses all network nodes. Instead of separate negotiation messages between node pairs, the slot adjustment information is combined with the data transmission stream, allowing all nodes to receive synchronization instructions simultaneously without additional message interaction delays.
Data Source
AI summary
A service flow adjustment method and a communication apparatus are provided. Slot adjustment information is carried in a client signal flow sent between nodes, so that times at which all nodes on a network switch slot configuration can be unified, to avoid service damage in a process of adjusting a network transmission bandwidth. The method includes: A first node receives a first client signal flow from a second node by using N slots of a first bundling group; and after first duration starting from a time at which the first node detects slot adjustment information, the first node receives the first client signal flow from the second node by using M slots of the first bundling group.