SDN Management Controller Dynamic Instantiation

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Solution Overview

Problem

Current communication networks face challenges in dynamically adapting to changing demands and requirements, leading to delayed service instantiation and poor response to network changes due to labor-intensive processes and integration of control and data planes, which limits flexibility and responsiveness.

Innovation Solution

A Software Defined Network (SDN) Management Controller that dynamically instantiates and configures SDN Controllers to manage resources and services, separating control and data planes, and using Network Function Virtualization (NFV) to provide on-demand network services and resources.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Speed

If traditional network architecture with integrated control and data planes is used, then network stability is maintained, but service instantiation speed and adaptability to changing demands deteriorate

Engineering Contradiction:
Improveservice instantiation speedVSAvoidnetwork architecture complexity
Core Design Contradiction:
SpeedVSDevice complexity

Solution Approach 1:

The patent applies segmentation by dividing the traditional integrated network architecture into separate control plane and data plane components. The SDN controller manages control plane functions independently from the data plane forwarding operations, enabling faster service instantiation through centralized control while maintaining network stability through proven data plane implementations.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The SDN controller acts as an intermediary between service requirements and network resources. It receives service instantiation requests, determines resource requirements, and orchestrates the allocation of network resources without requiring changes to the underlying data plane infrastructure, thus accelerating service deployment while maintaining architectural stability.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Productivity

If manual labor-intensive processes are used for network service deployment, then service quality control is improved, but productivity and response time to network changes deteriorate

Engineering Contradiction:
Improveservice deployment productivityVSAvoidservice quality reliability
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The system enables self-service through automated service instantiation processes. The SDN controller automatically determines resource requirements, allocates network resources, and instantiates services without manual intervention. Quality control is maintained through predefined policies and automated validation mechanisms that ensure service quality standards are met during the automated deployment process.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The patent implements feedback mechanisms where the SDN controller continuously monitors network resource usage and service performance. Based on this feedback, the controller can dynamically adjust resource allocation and trigger service instantiation or modification events, enabling high productivity through automation while maintaining reliability through continuous monitoring and adaptive control.

Inventive Principle:
Principle #23Feedback

3Adaptability or versatility

If fixed network resource allocation is used, then network stability is maintained, but adaptability to changing service demands deteriorates

Engineering Contradiction:
Improvenetwork adaptability to service demandsVSAvoidnetwork resource allocation stability
Core Design Contradiction:
Adaptability or versatilityVSStability of the object's composition

Solution Approach 1:

The patent applies dynamics by enabling flexible and dynamic network resource allocation through the SDN controller. The controller can adapt resource allocation to changing service demands in real-time while maintaining overall network stability through centralized control policies. Services can be instantiated, modified, or terminated dynamically based on operational requirements without disrupting the underlying network infrastructure.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentUS11102131B2Method and apparatus for dynamically adapting a software defined network
Publication Date: 2021.08.24 AT&T INTELLECTUAL PROPERTY I L P
  • US11102131B2 patent drawing
  • US11102131B2 patent drawing
  • US11102131B2 patent drawing

AI summary

Aspects of the subject disclosure may include, for example, receiving a first service request via a network, transmitting a query to service layer equipment, and receiving, from the service layer equipment, first service requirements to fulfill the first service request. Responsive to receiving the first service requirements, a request for network resource capacity information is transmitted to instantiated software defined network (SDN) controllers. Network capacity information is received from the instantiated SDN controllers and an insufficiency thereof is determined according to the service requirements and the network capacity information. Another software defined network controller is instantiated into the network, responsive to the determined insufficiency, to fulfill the first service request. The first service requirements are met, in part, by the instantiated software defined network controllers that are instantiated and, in part, by the other software defined network controller. Other embodiments are disclosed.