Bandwidth Measurement Tools

Iperf

Iperf is a tool to measure maximum TCP bandwidth, allowing the tuning of various parameters and UDP characteristics. Iperf reports bandwidth, delay jitter, datagram loss. http://dast.nlanr.net/Projects/Iperf/

BWCTL

"BWCTL is a command line client application and a scheduling and policy daemon that wraps Iperf"

Home page: http://e2epi.internet2.edu/bwctl/

Exemple

http://e2epi.internet2.edu/pipes/pmp/pmp-switch.htm

NDT

Web100-based TCP tester that can be used from a Java applet.

Pchar

Hop-by-hop capacity measurements along a network path.

Netperf

A client/server network performance benchmark.

Home page: http://www.netperf.org/netperf/NetperfPage.html

Thrulay

A tool that performs TCP throughput tests and RTT measurements at the same time.

RUDE/CRUDE

RUDE is a package of applications to generate and measure the UDP traffic between two points. The rude generates traffic to the network, which can be received and logged on the other side of the network with the crude. Traffic pattern can be defined by user. Tool is available under http://rude.sourceforge.net/

TTCP

TTCP (Test TCP) is a utility for benchmarking UDP and TCP performance. Utility for Unix and Windows is available at http://www.pcausa.com/Utilities/pcattcp.htm/

DSL Reports doesn't require any install. It checks the speed of your connection via a Java applet. One can choose from over 300 sites in the world from which to run the tests http://www.dslreports.com/stest

* Sample report produced by DSL Reports:

Other online bandwidth measurement sits:

* http://myspeed.visualware.com/

* http://www.toast.net/performance/

* http://www.beelinebandwidthtest.com/

-- FrancoisXavierAndreu, SimonMuyal & SimonLeinen - 06-30 Jun 2005

-- HankNussbacher - 07 Jul 2005 & 15 Oct 2005 (DSL and online Reports section)