Dynamic L2 Switch Port Power Management via Traffic Analysis
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Solution Overview
Problem
Existing network power-saving methods for Layer-2 switches are inefficient in dynamically detecting unused ports and adjusting configurations to minimize power consumption, as they rely on static monitoring and do not effectively manage port usage across the network.
Innovation Solution
A method involving packet collection, MAC-IP history generation, access analysis, L2 switch port analysis, and green architecture construction processes to create a green L2 switch state table, which dynamically updates port configurations by identifying and deallocating unused ports, thereby optimizing power usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If static monitoring is used to detect unused ports, then power consumption is reduced, but the detection accuracy and responsiveness to changing network conditions deteriorates
Solution Approach 1:
The patent implements dynamic port status detection by continuously monitoring packet traffic and automatically updating port states based on real-time network activity. The system transitions from static to dynamic monitoring, where port states are constantly reassessed and adjusted according to current usage patterns, ensuring both energy efficiency and accurate detection of changing network conditions.
Solution Approach 2:
The patent establishes a feedback mechanism where port status information is continuously collected from network traffic analysis and fed back to the control system. This feedback loop enables the system to detect changes in port usage and respond by adjusting power states accordingly, maintaining both energy efficiency and detection accuracy through continuous adaptation.
2Loss of energy
If continuous monitoring of all L2 switch ports is implemented, then power saving opportunities are identified, but system complexity and computational overhead increases
Solution Approach 1:
The patent segments the network monitoring task by analyzing individual L2 switch ports independently and maintaining separate state information for each port. This segmentation allows the system to manage complexity through modular processing, where each port can be monitored and controlled separately, reducing the overall computational burden while enabling comprehensive power saving opportunities.
Solution Approach 2:
The patent applies local quality by tailoring the monitoring and control strategy to each individual port's specific usage patterns and characteristics. Rather than applying a uniform monitoring approach to all ports, the system adapts its analysis and power management decisions to the local conditions of each port, optimizing power savings while managing system complexity through localized decision-making.
3Loss of energy
If L2 switch port configurations are dynamically adjusted, then power consumption is optimized, but network service reliability may be affected
Solution Approach 1:
The patent implements preliminary action by proactively detecting port usage patterns and preparing power state transitions before actual idle periods occur. The system monitors traffic patterns, predicts when ports will become idle, and schedules power state changes in advance, ensuring that power optimization occurs without disrupting active network services and maintaining reliability.
Data Source
AI summary
Provided is a technique for building a green architecture for achieving efficient power saving in a Layer-2 network, the technique having: a packet collection process (S01) for collecting all broadcast packets communicated within the network and extracting packet information; a MAC-IP history generation process (S02) for generating MIPT with the latest timestamp from the packet information; an access analysis process (S03) for counting, on the basis of information about the MIPT, the number of packets per category of {SMAC, DMAC} in each time slot having a certain interval, and generating a MAcT; an L2 switch port analysis process (S04) for generating an MDMAcT on the basis of information about the MAcT; a green architecture building process (S05) for generating a GMDMAcT in which a port connection configuration of the MDMAcT has been updated; and a visualization process (S06) for displaying information about the GMDMAcT.