Tools and Techniques for Measurement of Networks

Computer Science Department
Worcester Polytechnic Institute
100 Institute Road
Worcester, MA 01609, USA

Overview

Tools and Techniques

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Overview

This page presents tools and techniques for measuring networks that are developed and used by the Congestion Control (CC) research group of the Computer Science Department at Worcester Polytechnic Institute. The techniques include details on building a host access point and setting up a wireless sniffer while the tools include programs for gathering performance statistics for link, network and application layers. The tools are all open-source software available for download and the techniques all use open-source software and off-the-shelf hardware components. Together, these tools and techniques facilitate network performance analysis across network layers in a flexible, accurate and cost-effective manner.

You might also check out our downloads of data-sets, traces, source code, utilities and multimedia files that have been used in our research.

Overview

Tools and Techniques

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Tools and Techniques

Techniques

Wireless Sniffer:

While sniffers have been widely used to monitor network traffic at the data-link layer and above, most commercial wireless sniffers are costly and are not a flexible open source solution. However, passive sniffing does not interfere with the hosts under test and does not require access to the hosts themselves. Thus sniffers can be used to measure black-box devices such as hand-held game consoles. The document Wireless Sniffing by Example -- How to Build and Use an IEEE 802.11 Wireless Network Sniffer describes how to build and use a basic IEEE 802.11 wireless sniffer from open source software and off-the-shelf wireless networking hardware.

Host Access Point:

A wireless Host AP uses a Linux PC and off-the-shelf wireless networking hardware working in master mode to provide access point functionality. An end-host wireless client using a commercial AP should be able to transparently associate and use the Host AP, instead. The control of the internal workings of the Host AP allows exploration and understanding of the ramifications of internal AP resource allocation decisions on overall WLAN performance. The document Host AP by Example -- How to Build an IEEE 802.11 Wireless Host Access Point describes how to build an IEEE 802.11 Host AP that is "open" for instrumentation, modification and measurement.

Tools

Wireless layer
Network layer
Application layer

Overview

Tools and Techniques

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Publications

The below publications have used one or more of the tools described on this page.

Technical Reports

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Tools and Techniques

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People

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Tools and Techniques

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[WPI Homepage] [CS Homepage] [CC Homepage]