SDN Virtual Network Generation Using Resource Data Tables

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Solution Overview

Problem

Existing SDN-based network virtualization methods, such as the overlay method using GRE, struggle to efficiently generate virtual networks that reflect user demands and utilize various types of physical network resources effectively.

Innovation Solution

An apparatus and method that collect characteristic information on communication equipment to generate a data table, allowing for the selection of criteria based on user demands to determine specific network paths and allocate physical resources, thereby creating virtual switches that meet user requirements using the allocated resources.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a fixed algorithm is used to generate virtual networks (GRE method), then the network generation process is simple and standardized, but it is difficult to efficiently generate virtual networks that reflect user demands and utilize various physical network resources

Engineering Contradiction:
Improveability to reflect user demandsVSAvoidcomplexity of network generation process
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent segments the network generation process into distinct functional modules: a network information generator that collects and processes physical resource information, and a virtual network generator that creates virtual networks based on user demands. This segmentation allows each module to specialize in specific tasks, enabling flexible adaptation to user requirements while maintaining manageable system complexity through clear separation of concerns.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent implements dynamic network generation by allowing the system to adaptively select and process different physical network resources based on real-time user demands. The network information generator dynamically collects current resource states, and the virtual network generator dynamically creates appropriate virtual network configurations, enabling the system to flexibly respond to varying user requirements rather than following a fixed predetermined algorithm.

Inventive Principle:
Principle #15Dynamics

2Productivity

If physical resources are allocated dynamically according to user demands, then the efficiency and flexibility of virtual network generation is improved, but the complexity of resource management and path determination increases

Engineering Contradiction:
Improveefficiency of virtual network generationVSAvoidcomplexity of resource allocation process
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent applies preliminary action by having the network information generator collect and process physical resource information in advance, organizing it into a structured data table format before virtual network generation begins. This preprocessing step prepares the resource data for efficient querying and allocation during virtual network creation, improving generation efficiency while managing complexity through organized data structures and predetermined processing workflows.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent introduces an intermediary data table structure that mediates between the physical network resources and the virtual network generation process. The network information generator processes raw resource information into a standardized data table format, which then serves as an intermediate representation that the virtual network generator can efficiently query and use for allocation decisions. This intermediary structure simplifies the complexity of direct resource management while enabling flexible and efficient virtual network generation.

Inventive Principle:
Principle #24Intermediary (Mediator)

Data Source

PatentUS9507625B2Apparatus and method for generating software defined network(SDN)-based virtual network according to user demand
Publication Date: 2016.11.29 ELECTRONICS & TELECOMM RES INST
  • US9507625B2 patent drawing
  • US9507625B2 patent drawing
  • US9507625B2 patent drawing

AI summary

An apparatus and method for generating a Software Defined Network (SDN)-based virtual network. The apparatus includes a network information generator and a virtual network generator, in which an SDN-based virtual network desired by a user may be generated efficiently by allocating physical resources to reflect various user demands.