Cross Unit Synchronization in Optical Network Elements
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In optical communication systems, the switching states and time slot configurations of cross units in network elements often become inconsistent, leading to service faults and interruptions due to the lack of effective synchronization techniques.
Innovation Solution
A method where the main cross unit sends switching state and time slot configuration data to secondary cross units, which update their local data, ensuring consistency through an automatic protection switching (APS) protocol, with the main unit detecting trigger conditions and secondary units implementing system configuration changes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If each cross unit detects alarm conditions separately, then the system operates independently and autonomously, but the switching states of various boards become inconsistent causing service faults
Solution Approach 1:
The system divides cross units into a main cross unit and secondary cross units. The main cross unit is responsible for detecting alarm conditions and determining switching states, while secondary cross units execute the switching operations. This segmentation ensures that all cross units follow the same switching state determined by the main unit, eliminating inconsistency while maintaining operational independence of individual units.
Solution Approach 2:
The main cross unit acts as an intermediary between the alarm detection source and the secondary cross units. It receives alarm conditions, determines the appropriate switching state, and then communicates this state to all secondary cross units. This intermediary role ensures centralized control over switching state consistency across all cross units in the system.
2Stability of the object's composition
If cross units operate independently without synchronization, then the system structure remains simple, but time slot configuration becomes inconsistent leading to service interruptions
Solution Approach 1:
The system segments the configuration management function by designating one main cross unit to handle time slot configuration and switching state determination, while secondary cross units are responsible for executing the configured settings. This segmentation ensures that all cross units maintain consistent time slot configurations without requiring complex coordination mechanisms among all units.
Solution Approach 2:
The main cross unit receives feedback about alarm conditions and service status, determines the appropriate switching state and time slot configuration, and then distributes this configuration to secondary cross units. The system continuously monitors and updates configurations based on current service requirements, ensuring consistent time slot configuration across all cross units while adapting to changing conditions.
Data Source
Figure 1~2
Figure 3
Figure 4
AI summary
A method for synchronizing the switching states of cross units in a network element is provided in the invention. The method comprises the following steps: a main cross unit implementing a switching protocol to obtain and update a switching state and time slot configuration data, and sending the switching state and the time slot configuration data to secondary cross units; the secondary cross units conducting a real-time detection for the switching state and the time slot configuration data sent by the main cross unit, and then updating the switching state and the time slot configuration data to a local board switching state and time slot configuration data. In the method for synchronizing the switching state of cross units in network element according to the invention, the main cross unit sends the switching state and the time slot configuration data to the secondary cross units, and the secondary cross units update the switching state and the time slot configuration data to a local board switching state and time slot configuration data, thereby effectively ensuring that the switching states and time slot configuration data of all cross units in a union are consistent, thus improving the stability of the system multiplexing section and channel switching and avoiding the influences on the services.