Power Aware Path Placement for Network Devices

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Solution Overview

Problem

Current network management techniques fail to account for power consumption when placing paths across networks, leading to unnecessary consumption of computing and networking resources during non-peak utilization times.

Innovation Solution

A network device determines a power group associating ports and processing components, uses a path placement strategy to compute paths, and disables unused components based on traffic load to conserve power.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the network operates with all ports and processing components active to ensure peak utilization capability, then network reliability and adaptability are improved, but power consumption increases unnecessarily during non-peak times

Engineering Contradiction:
Improvenetwork reliabilityVSAvoidpower consumption
Core Design Contradiction:
ReliabilityVSUse of energy by moving object

Solution Approach 1:

The network device dynamically adjusts the operational state of ports and processing components based on real-time traffic load conditions. During non-peak times, unused ports and processing components are disabled to reduce power consumption, while during peak times they are activated to maintain network reliability and performance.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system changes the operational parameter (power state) of network components based on traffic load conditions. By monitoring traffic patterns and adjusting the power state of ports and processing components accordingly, the system optimizes the balance between reliability and energy consumption.

Inventive Principle:
Principle #35Parameter changes

2Adaptability or versatility

If paths are placed to distribute traffic across multiple processing components, then network adaptability and fault tolerance are improved, but power consumption increases due to more components remaining active

Engineering Contradiction:
Improvenetwork adaptabilityVSAvoidpower consumption
Core Design Contradiction:
Adaptability or versatilityVSUse of energy by moving object

Solution Approach 1:

The path placement strategy is dynamically adjusted based on current traffic conditions. The system computes paths that utilize available processing components while enabling the power savings feature to reduce the number of actively powered components, thereby balancing adaptability with energy efficiency.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system changes the path placement parameters to optimize for power efficiency. By modifying how paths are computed and assigned, the system can achieve similar adaptability with fewer active processing components, thus reducing overall power consumption.

Inventive Principle:
Principle #35Parameter changes

3Loss of energy

If unused ports and processing components are disabled to save power, then energy efficiency is improved, but network reliability may be compromised during sudden traffic increases

Engineering Contradiction:
Improveenergy efficiencyVSAvoidnetwork reliability
Core Design Contradiction:
Loss of energyVSReliability

Solution Approach 1:

The system performs preliminary assessments of traffic patterns to identify truly unused ports and processing components before disabling them. By analyzing historical and real-time traffic data, the system ensures that components critical for handling sudden traffic increases are kept active, while only genuinely idle components are powered down.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system continuously monitors network traffic and performance metrics, providing feedback to the path placement and power management algorithms. This feedback mechanism allows the system to quickly react to changing conditions and reactivate components if traffic patterns change, thus maintaining reliability while optimizing energy efficiency.

Inventive Principle:
Principle #23Feedback

Data Source

PatentEP4531470A1Power aware path placement for a network
Publication Date: 2025.04.02 JUNIPER NETWORKS INC
  • EP4531470A1 patent drawingFigure 1A
  • EP4531470A1 patent drawingFigure 1B
  • EP4531470A1 patent drawingFigure 1C

AI summary

A first network device may determine a power group associating a plurality of ports of the first network device with a processing component of the first network device, and may advertise the power group to a second network device. The first network device may utilize the power group with a path placement strategy to compute a path to the second network device, and may determine a traffic load associated with the first network device. The first network device may disable the plurality of ports and the processing component based on the path and the traffic load.