Improved NetFlow architecture for precise per-flow latency and performance monitoring in IP networks.

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Improved NetFlow architecture for precise per-flow latency and performance monitoring in IP networks.



Problem Definition

Problem Description: In traditional IP networks, diagnosing flow-specific problems can be challenging as the inherent measurement support in routers often only provides aggregate characteristics. This becomes particularly problematic when trying to identify issues that affect individual flows, as the overall behavior within a router may appear normal even when specific flows are experiencing latency or performance issues. Existing tomographic approaches, such as using active probes, are limited in their ability to capture per-flow measurements within routers. This means that troubleshooting flow-specific problems can be inefficient and inaccurate, leading to delays in identifying and resolving network issues. To address this problem, the enhancement of the Consistent NetFlow (CNF) architecture for per-flow latency and performance estimation is necessary.

By implementing CNF, routers can measure and report the first and last time stamps for each flow, allowing for more precise monitoring and analysis of individual flow performance. Additionally, the use of hash-based sampling ensures that two adjacent routers record the same flow, enabling consistent and accurate per-flow measurements across the network. Therefore, the proposed enhancement of the CNF architecture offers a solution to the challenge of diagnosing flow-specific problems in IP networks by providing improved per-flow latency and performance estimation capabilities.

Proposed Work

The proposed work aims to enhance the Consistent NetFlow (CNF) architecture for improved per-flow latency and performance estimation in IP networks. Currently, the inherent measurement support in routers is inadequate for diagnosing problems, especially when dealing with flow-specific issues where aggregate behavior appears normal. Existing tomographic approaches, such as active probes, only capture aggregate characteristics. The CNF architecture addresses this limitation by measuring per-flow data within routers, utilizing the existing NetFlow architecture to report first and last timestamps per flow. Hash-based sampling ensures consistency between adjacent routers in recording the same flow.

This results in more accurate per-flow latency and performance estimation. The proposed CNF architecture represents a significant improvement in network diagnostics and management, particularly in the context of JAVA-based projects related to networking.

Application Area for Industry

This project can be applied across various industrial sectors, including telecommunications, IT, and networking companies. In these industries, the ability to diagnose flow-specific problems in IP networks is crucial for ensuring optimal performance and reliability. By implementing the proposed enhancement of the Consistent NetFlow (CNF) architecture, organizations can better monitor and analyze individual flow performance, leading to more efficient troubleshooting and issue resolution. Specific challenges that industries face, such as identifying latency or performance issues affecting individual flows, can be addressed by using the CNF architecture. The benefits of implementing these solutions include improved accuracy in per-flow latency and performance estimation, resulting in faster problem resolution and better overall network management.

Overall, the CNF architecture represents a valuable tool for enhancing network diagnostics and ensuring the smooth operation of IP networks across various industrial domains.

Application Area for Academics

The proposed project focusing on enhancing the Consistent NetFlow (CNF) architecture for per-flow latency and performance estimation in IP networks holds significant potential for research by MTech and PHD students in the field of networking. This project addresses the challenge of diagnosing flow-specific problems in traditional IP networks by improving the measurement capabilities within routers. By implementing CNF, routers can provide more precise monitoring and analysis of individual flow performance, thus enabling researchers to delve deeper into network diagnostics and management. MTech and PHD students can leverage this project for innovative research methods, simulations, and data analysis for their dissertations, theses, or research papers. The code and literature of the project can be utilized by field-specific researchers and students to explore new avenues in network diagnostics and management.

Moreover, the proposed work can be tailored to specific technology domains within networking, further enhancing the relevance and applicability of the research. The future scope of this project includes the potential for further advancements in per-flow latency and performance estimation, paving the way for cutting-edge research in network optimization and troubleshooting.

Keywords

enhance, Consistent NetFlow, CNF architecture, per-flow latency, performance estimation, IP networks, routers, flow-specific problems, aggregate characteristics, tomographic approaches, active probes, troubleshooting, inefficient, inaccurate, delays, network issues, monitoring, analysis, individual flow performance, hash-based sampling, consistent, accurate measurements, network diagnostics, management, JAVA-based projects, networking, MATLAB, Mathworks, JAVA, Netbeans, Eclipse, J2SE, J2EE, ORACLE, JDBC, Swings, JSP, Servlets

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