Multilayer Resource Arbitration in Hybrid Transport Networks
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional control plane systems in hybrid Packet and OTN networks require each intermediate node to process and forward control plane messages, even if they are not intended for that node, leading to inefficiencies in managing hybrid services that span multiple layers.
Innovation Solution
Implementing a method where control plane signaling at Layer N is processed at each network element, and resource management protocol messages are injected and extracted at the originating and terminating network elements, allowing intermediate nodes to operate only the control plane, while the resource management protocol operates between the originating and terminating nodes at Layer N+1, enabling efficient management of logical ports and protection resources.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If control plane messages are processed at each intermediate node, then network element control is maintained, but processing efficiency deteriorates due to unnecessary handling of messages not intended for that node
Solution Approach 1:
The patent extracts resource management protocol messages from the conventional control plane signaling path. Instead of being processed at every intermediate node like traditional control plane messages, these messages are injected into the data path at Layer N+1 where they can be transported end-to-end without intermediate processing, thus eliminating unnecessary processing overhead while maintaining control functionality.
Solution Approach 2:
The patent introduces a resource management protocol operating at Layer N+1 as an intermediary mechanism. This protocol handles resource allocation and management functions separately from the control plane signaling at Layer N, allowing control plane messages to be processed efficiently at intermediate nodes while resource management messages are handled end-to-end without intermediate intervention.
2Adaptability or versatility
If resource management is handled at the control plane layer, then coordination is maintained, but multilayer resource management complexity increases
Solution Approach 1:
The patent segments resource management functions into distinct layers: Layer N control plane handles signaling and coordination, while Layer N+1 handles resource management protocol operations. This segmentation allows each layer to operate independently with well-defined interfaces, reducing overall system complexity while enabling comprehensive multilayer resource management.
Solution Approach 2:
The patent adds a new dimensional layer (Layer N+1) for resource management protocol operations, separate from the existing control plane layer (Layer N). This dimensional separation allows resource management to operate in parallel with control plane functions, enabling complex multilayer resource coordination without increasing control plane complexity.
Data Source
AI summary
A method, implemented in a hybrid network element supporting switching at a plurality of layers, for multilayer resource management between the plurality of layers, includes operating a control plane at Layer N between a plurality of network elements in a network, wherein control plane signaling at the Layer N is processed at each network element in a path for a service in the network; and operating a resource management protocol at Layer N+1 with another network element in the network by injecting and extracting messages from and to the control plane into a data path in the Layer N+1, wherein a service at the Layer N+1 operates over the Layer N, and wherein the resource management protocol messages are processed at an originating network element and a terminating network element and not at intermediate network elements in the path.