CD OXC Service Rerouting for Blocked Mapping Wavelengths
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Solution Overview
Problem
In wavelength division networks, service transmission fails due to blocked mapping wavelengths in the existing CD OXC structure, particularly in dynamic operations and maintenance modes where rerouting tools are not applicable.
Innovation Solution
A service processing method that determines when a mapping wavelength is blocked on the original routing path and reroutes the service to a second local dimension where the mapping wavelength is available, ensuring uninterrupted transmission by adjusting operating wavelengths and rerouting services without affecting normal operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a service is routed through the original routing path in a CD OXC structure, then the service can be transmitted using the assigned mapping wavelength, but the service transmission fails when the mapping wavelength is blocked/occupied by another service on the same local dimension
Solution Approach 1:
The patent implements dynamic service rerouting by enabling the control device to automatically detect wavelength blocking conditions and switch services between different local dimensions in real-time. This dynamic adaptation allows the system to respond to changing network conditions without manual intervention, resolving the contradiction between maintaining reliable service transmission and adapting to wavelength availability changes.
Solution Approach 2:
The patent changes the routing parameter from a fixed original routing path to a flexible alternative routing path when wavelength blocking is detected. By modifying the routing parameters dynamically based on wavelength availability, the system maintains service transmission reliability while adapting to changing network conditions, directly addressing the technical contradiction.
2Reliability
If a planning tool is used to reduce service blocking impact, then service blocking can be minimized in static operations and maintenance mode, but this approach cannot be applied in dynamic operations and maintenance modes such as ASON
Solution Approach 1:
The patent implements a self-service mechanism where the control device automatically detects wavelength blocking conditions and performs service rerouting without requiring external planning tools or manual intervention. This self-service capability enables the system to maintain high service transmission reliability in dynamic operations and maintenance modes, resolving the contradiction between reliability and operational flexibility.
Solution Approach 2:
The patent incorporates a feedback mechanism where the control device continuously monitors wavelength availability and service transmission status, and automatically adjusts routing decisions based on real-time network conditions. This feedback-driven approach replaces the need for static planning tools while maintaining service reliability, addressing the contradiction between reliability and ease of operation in dynamic modes.
3Productivity
If the wavelength occupied by a local dimension includes the mapping wavelength of a service, then the local dimension can transmit other services using that wavelength, but the original service is blocked and cannot be rerouted
Solution Approach 1:
The patent resolves wavelength blocking by switching the service to a different local dimension (from first local dimension to second local dimension) where the mapping wavelength is available. This dimensional transition allows the system to maintain both high wavelength utilization efficiency and service transmission reliability by finding alternative paths in the network topology.
Data Source
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AI summary
Embodiments of this application disclose a service processing method, a control device, and a storage medium. The method specifically includes: determining, by the control device, that a site receives a first service; determining that a mapping wavelength of a first service is blocked on an original routing path, where the original routing path includes a first line board connected to a first local dimension, and a wavelength occupied by the first local dimension includes the mapping wavelength of the first service; and routing, by the control device, the first service to a second line board connected to a second local dimension, where the mapping wavelength of the first service is available in the second local dimension. Because the mapping wavelength of the first service is available in the second local dimension, the first service can be successfully transmitted in the second local dimension, thereby resolving a problem that service transmission fails because the mapping wavelength of the first service is blocked on the original routing path in a site of an existing CD OXC structure.