nanog mailing list archives

Re: Testing Internet Speeds and Capacity


From: shake righa <ssrigha () gmail com>
Date: Tue, 24 Nov 2009 09:44:46 +0300

At the moment the market is competitive and clients are getting
various different offers from different competitors.Thus you find them
enquiring about speeds hence need to check on the speeds.

onsite engineers too need to be able to test and provide accurate
results.thus need for a tool that can provide accurate results.

Regards,
Shake Righa

On 11/24/09, Xai Xi <xaixili () live com> wrote:

As mentioned, there is a limitation to TCP-based speed tests - TCP
throughput is very sensitive to packet losses, particularly during
slow-start, in addition to requiring end-host tuning (as an exercise, try
running speedtest.net on a high bandwidth connection). You could use
something called "available bandwidth", which is kind of like the "leftover
capacity" on your path - I've been using this tool called pathload2:
http://www.measurementlab.net/measurement-lab-tools#pathload2

                                      
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