4. Bandwidth

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Mise en ligne : 23 mai 2016
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6. Conclusion

Descriptif

This part will address the concept of bandwidth, or the "speed" of network paths. Defining and measuring bandwidth is particularly challenging. We'll go over established definitions of bandwith metrics and the limitations of these definitions. Then, we'll cover methods to measure bandwidth that are based on flooding network paths. The flooding method underlies most of the tools we use today. We’ll discuss how Speedtest works and how to configure our own bandwidth tests using iPerf. Flooding tools create a lot of measurement overhead on the measured network paths. We’ll end the week with a discussion of more advanced methods from the research community to measure bandwidth with lower overhead.

Table of contents

4.1 Introduction

4.2 Definitions of bandwidth metrics A. The basics B. Limitations

4.3 End-to-end measurement approaches

4.4 Flooding A. Methods B. Example tools

4.5 Advanced probing A. Packet pairs B. Size-delay and self-induced congestion

4.6 Conclusion

Vidéos

6. Conclusion
Vidéo pédagogique
00:04:48
6. Conclusion
Friedman
Timur
Teixeira
Renata

Part 4. Bandwidth 4.1 Introduction 4.2 Definitions of bandwidth metrics A. The basics B. Limitations 4.3 End-to-end measurement approaches 4.4 Flooding A. Methods B. Example tools 4.5

5B. Advanced probing: Size-delay and self-induced congestion
Vidéo pédagogique
00:06:26
5B. Advanced probing: Size-delay and self-induced congestion
Friedman
Timur
Teixeira
Renata

Part 4. Bandwidth 4.1 Introduction 4.2 Definitions of bandwidth metrics A. The basics B. Limitations 4.3 End-to-end measurement approaches 4.4 Flooding A. Methods B. Example tools 4.5

5A. Advanced probing: Packet pairs
Vidéo pédagogique
00:06:28
5A. Advanced probing: Packet pairs
Friedman
Timur
Teixeira
Renata

Part 4. Bandwidth 4.1 Introduction 4.2 Definitions of bandwidth metrics A. The basics B. Limitations 4.3 End-to-end measurement approaches 4.4 Flooding A. Methods B. Example tools 4.5

4B. Flooding: Example tools
Vidéo pédagogique
00:10:06
4B. Flooding: Example tools
Friedman
Timur
Teixeira
Renata

Part 4. Bandwidth 4.1 Introduction 4.2 Definitions of bandwidth metrics A. The basics B. Limitations 4.3 End-to-end measurement approaches 4.4 Flooding A. Methods B. Example tools 4.5

4A. Flooding: Methods
Vidéo pédagogique
00:06:14
4A. Flooding: Methods
Friedman
Timur
Teixeira
Renata

Part 4. Bandwidth 4.1 Introduction 4.2 Definitions of bandwidth metrics A. The basics B. Limitations 4.3 End-to-end measurement approaches 4.4 Flooding A. Methods B. Example tools 4.5

3.End-to-end measurement approaches
Vidéo pédagogique
00:05:19
3.End-to-end measurement approaches
Friedman
Timur
Teixeira
Renata

Part 4. Bandwidth 4.1 Introduction 4.2 Definitions of bandwidth metrics A. The basics B. Limitations 4.3 End-to-end measurement approaches 4.4 Flooding A. Methods B. Example tools 4.5

2B. Definitions of bandwidth metrics: Limitations
Vidéo pédagogique
00:04:51
2B. Definitions of bandwidth metrics: Limitations
Friedman
Timur
Teixeira
Renata

Part 4. Bandwidth 4.1 Introduction 4.2 Definitions of bandwidth metrics A. The basics B. Limitations 4.3 End-to-end measurement approaches 4.4 Flooding A. Methods B. Example tools 4.5

2A. Definitions of bandwidth metrics: The Basics
Vidéo pédagogique
00:04:03
2A. Definitions of bandwidth metrics: The Basics
Friedman
Timur
Teixeira
Renata

Part 4. Bandwidth 4.1 Introduction 4.2 Definitions of bandwidth metrics A. The basics B. Limitations 4.3 End-to-end measurement approaches 4.4 Flooding A. Methods B. Example tools 4.5

1. Introduction
Vidéo pédagogique
00:05:11
1. Introduction
Friedman
Timur
Teixeira
Renata

Part 4. Bandwidth 4.1 Introduction 4.2 Definitions of bandwidth metrics A. The basics B. Limitations 4.3 End-to-end measurement approaches 4.4 Flooding A. Methods B. Example tools 4.5

Intervenants

Thèmes