SDN Controller Centralizes PoE Switch Management

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Solution Overview

Problem

Current Power over Ethernet (PoE) management systems are manual and isolated, leading to time-consuming and error-prone processes, especially as the number of PoE capable switches increases, which limits the benefits of centralized management and can result in underpowered devices waiting for available power.

Innovation Solution

A Software Defined Networking (SDN) controller is used to detect and manage Power Sourcing Equipment (PSE) networking devices, receiving PoE information, and generating a graphical user interface to display and manage PoE capabilities, statistics, and device connections, enabling centralized management of PoE networks.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If manual management of PoE switches is used, then individual switch control is possible, but management time and error rate increase significantly as network size grows

Engineering Contradiction:
ImprovePoE management operationVSAvoidManagement time
Core Design Contradiction:
Ease of operationVSLoss of time

Solution Approach 1:

The patent introduces an intermediary system (centralized PoE management system with SDN controller) that mediates between network administrators and multiple PoE switches. This intermediary automatically discovers switches, collects PoE status information, and performs management actions centrally, eliminating the need for administrators to manually access each switch via CLI and significantly reducing management time while maintaining full control capability.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The system enables PoE switches to automatically provide information about their PoE capabilities, power availability, and connected devices through automated discovery and status reporting mechanisms. This self-service capability allows the centralized management system to gather necessary information without manual intervention, reducing both management time and error rates.

Inventive Principle:
Principle #25Self-service

2Ease of manufacture

If manual PoE management is used, then simple setup is possible, but management errors increase with network complexity

Engineering Contradiction:
ImproveSystem setup simplicityVSAvoidManagement accuracy
Core Design Contradiction:
Ease of manufactureVSReliability

Solution Approach 1:

The centralized PoE management system implements continuous feedback loops where switches automatically report their PoE status, power availability, and device connection information to the central controller. This real-time feedback enables automated decision-making and power allocation, significantly reducing management errors while maintaining system reliability even as network complexity increases.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The intermediary management system acts as a reliable mediator between administrators and the complex PoE network infrastructure. It centralizes control logic, validates power allocation decisions, and coordinates power distribution across multiple switches, thereby improving management accuracy and reducing errors that would otherwise occur in manual management of complex networks.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Productivity

If centralized PoE management is implemented, then power allocation efficiency improves, but system complexity increases

Engineering Contradiction:
ImprovePower allocation efficiencyVSAvoidManagement system complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The centralized PoE management system implements universal power pool management that can serve multiple PoE switches and diverse powered devices through a single unified interface. This multi-functional approach consolidates power allocation logic and device management capabilities, improving power allocation efficiency across the entire network while presenting a simplified interface to administrators despite the underlying complexity.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Data Source

PatentUS10581697B2SDN controlled PoE management system
Publication Date: 2020.03.03 DELL PROD LP
  • US10581697B2 patent drawing
  • US10581697B2 patent drawing
  • US10581697B2 patent drawing

AI summary

A Software Defined Networking (SDN) controlled Power over Ethernet (PoE) management system includes a plurality of Power Sourcing Equipment (PSE) networking devices that are each configured to provide both power and data over a network connection to a powered device. An SDN controller device that is coupled to each of the plurality of PSE networking devices. The SDN controller device detects each of the plurality of PSE networking devices. The SDN controller may then receive, from each of the plurality of PSE networking devices, a first SDN communication that includes Power over Ethernet (PoE) information for that PSE networking device. The SDN controller device may then generate a management graphical user interface that is configured to display any of the PoE information that was received in the first SDN communications from each of the plurality of PSE networking devices.