Network Flow Graph Monitoring for Real-Time Anomaly Detection

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Solution Overview

Problem

As data centers grow in size and complexity, managing network inefficiencies and security becomes exponentially more complicated, requiring manual intervention that can take hours or days, while malicious attacks or misconfigurations can shut down the data center within minutes.

Innovation Solution

A network traffic monitoring system that includes sensors, collectors, and an analytics module to automatically detect and respond to network anomalies, enforce policies, and simulate network changes to enhance security and efficiency.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If manual network management methods are used, then network administrators can implement security policies and manage access control, but the complexity increases exponentially as the network grows and response time becomes hours or days

Engineering Contradiction:
Improvenetwork securityVSAvoidmanagement complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The system employs self-healing capabilities where the network automatically detects, isolates, and responds to threats without human intervention. Sensors continuously monitor network traffic, automatically identify malicious patterns, and trigger predefined policies to block threats, enabling the network to protect itself autonomously

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

Manual mechanical network management operations are replaced by an automated electronic system comprising sensors, collectors, and policy engines that continuously analyze network traffic and enforce security policies through automated decision-making and execution

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Reliability

If manual network management methods are used, then network administrators can identify and resolve issues, but response time becomes hours or days while attacks can shut down data center within minutes

Engineering Contradiction:
Improvenetwork availabilityVSAvoidresponse time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The system performs preliminary actions by pre-configuring response policies and rules before threats occur. When sensors detect malicious traffic patterns, the system automatically executes predefined mitigation strategies immediately, eliminating the time required for human analysis and decision-making

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system implements continuous feedback loops where sensors monitor network traffic in real-time, collectors aggregate and analyze data, and the policy engine automatically adjusts security measures based on detected threats, creating a closed-loop system that responds dynamically to changing conditions

Inventive Principle:
Principle #23Feedback

3Measurement precision

If automated sensors and collectors are deployed throughout the datacenter, then real-time detection capability is improved, but system complexity and resource consumption increase

Engineering Contradiction:
Improveanomaly detection accuracyVSAvoidsystem architecture complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The monitoring system is segmented into distributed sensors that collect local data and centralized collectors that aggregate and analyze information. This division allows real-time detection at the edge while concentrating complex analysis centrally, reducing the burden on individual components and simplifying the overall architecture

Inventive Principle:
Principle #1Segmentation

4Reliability

If comprehensive network monitoring is implemented, then security policy enforcement is improved, but resource consumption and processing overhead increase

Engineering Contradiction:
Improvesecurity policy complianceVSAvoidprocessing resources
Core Design Contradiction:
ReliabilityVSUse of energy by moving object

Solution Approach 1:

The system applies partial monitoring by focusing computational resources on analyzing only suspicious or anomalous traffic patterns rather than processing every packet uniformly. Sensors filter and prioritize data, sending only relevant information to collectors for deep analysis, reducing overall processing overhead while maintaining security effectiveness

Inventive Principle:
Principle #16Partial or excessive action

Data Source

PatentEP3849154B1Network traffic monitoring system and method
Publication Date: 2026.01.07 CISCO TECHNOLOGY INC
  • EP3849154B1 patent drawingFigure 1
  • EP3849154B1 patent drawingFigure 2
  • EP3849154B1 patent drawingFigure 3

AI summary

Evaluating network flow data and generating a graph corresponding to network application components. The nodes correspond to the application components, the edges to network flows. A model of normal application behavior is created and used to evaluate second flow data. A user is alerted if the second flow deviates from the normal behavior.