Multi-level Traffic Flow Classification via First Packet Prediction

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Solution Overview

Problem

Current network technologies face challenges in classifying and routing network traffic flows effectively based on limited information in the first packet of a flow, as they often lack sufficient data to determine the appropriate network path, leading to inefficient routing and potential misclassification of traffic types.

Innovation Solution

Implementing a method that uses a network appliance to extract information from the first packet's header, predict the associated application name, determine a confidence level, and select a network tunnel for data transmission, with subsequent packets providing supplementary header information to update the prediction, allowing for accurate classification and routing.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of time

If classification is based only on first packet header information, then routing decision can be made immediately, but classification accuracy deteriorates due to limited information

Engineering Contradiction:
Improverouting decision timeVSAvoidclassification accuracy
Core Design Contradiction:
Loss of timeVSMeasurement precision

Solution Approach 1:

The system performs preliminary classification using available first packet information (headers, ports, protocols) to make an initial routing decision, then continuously updates the classification as more packets arrive. This allows immediate routing action while improving accuracy over time through multi-stage learning.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system implements feedback mechanisms where classification results from subsequent packets are fed back to refine and update the initial classification. The multi-level learning system continuously adjusts classification confidence based on incoming packet patterns, improving accuracy while maintaining timely routing decisions.

Inventive Principle:
Principle #23Feedback

2Measurement precision

If more information is collected from subsequent packets, then classification accuracy improves, but routing delay increases

Engineering Contradiction:
Improveclassification accuracyVSAvoidrouting delay
Core Design Contradiction:
Measurement precisionVSLoss of time

Solution Approach 1:

The system dynamically adjusts the amount of information collected and processing depth based on classification confidence levels. When initial classification confidence is high, minimal additional processing occurs. When confidence is low, the system collects more packet information to improve accuracy, creating a dynamic balance between speed and precision.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system performs partial classification actions based on available information rather than waiting for complete data. It makes routing decisions with the information currently available and refines the classification progressively, avoiding excessive waiting for complete packet information while still improving accuracy over time.

Inventive Principle:
Principle #16Partial or excessive action

3Productivity

If predictive algorithms are used with limited data, then routing speed improves, but prediction reliability deteriorates

Engineering Contradiction:
Improverouting speedVSAvoidprediction reliability
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The predictive algorithm performs preliminary classification using first packet data to enable immediate routing speed. The system accepts that initial predictions with limited data have lower reliability, but compensates by continuously refining predictions as more packet information becomes available, maintaining both speed and eventual reliability.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system uses feedback from actual packet flows to continuously improve prediction reliability. Classification results are validated against observed traffic patterns, and the multi-level learning system adjusts prediction models based on feedback, progressively improving reliability while maintaining fast routing throughput.

Inventive Principle:
Principle #23Feedback

Data Source

PatentUS11044202B2Multi-level learning for predicting and classifying traffic flows from first packet data
Publication Date: 2021.06.22 HEWLETT PACKARD ENTERPRISE DEV LP
  • US11044202B2 patent drawing
  • US11044202B2 patent drawing
  • US11044202B2 patent drawing

AI summary

Disclosed herein are systems and methods for multi-level classification of data traffic flows based in part on information in a first data packet for a data traffic flow. In exemplary embodiments of the present disclosure, a key can be generated to track data traffic flows by application names and data packet information or properties. Based in part on these keys, patterns can be discerned to infer data traffic information based on only the information in a first data packet. The determined patterns can be used to predict classifications of future traffic flows with similar key information. In this way, data traffic flows can be classified and steered in a network based on limited information available in a first data packet.