Speed Testing and Throughput testing

William F. Maton Sotomayor wmaton at ryouko.imsb.nrc.ca
Tue Nov 3 06:19:51 CST 2009


On Tue, 3 Nov 2009, Jason Biel wrote:

> Please take note with using iperf that you'll want to make sure the
> appropriate TCP Window Size has been negotiated.  We recently did some
> testing with systems that had decided to pick less than optimal window sizes
> and in turn had to manually set the size within iperf options.

Indeed this is true.

Also, if you use one of the Internet2 network test web100-enabled servers, 
you can try testing through a web browser.  There's both NPAD and NDT on 
distributed on different nodes, although each has its own slightly 
different tests.  It's also not a bad set of tools for support people 
wanting to troubleshoot bandwidth problems caused by duplex misconfigs.

>
> Jason
>
> On Tue, Nov 3, 2009 at 4:01 AM, Benoit VANNIER <benoit.vannier at apog.net>wrote:
>
>> Hello,
>>
>> Iperf is pretty good at this ... It s free
>>
>>
>> Ben
>>
>>
>> -----Message d'origine-----
>> De : Mark Urbach [mailto:mark.urbach at pnpt.com]
>> Envoyé : lundi 2 novembre 2009 22:57
>> À : nanog at nanog.org
>> Objet : Speed Testing and Throughput testing
>>
>> Anyone have a good solution to get "accurate" speed results when testing at
>> 10/100/1000 Ethernet speeds?
>>
>> Do you have a server/software that customer can test too?
>>
>>
>>
>> Thanks,
>> Mark Urbach
>> PinPoint Communications, Inc.
>> 100 N. 12th St  Suite 500
>> Lincoln, NE 68508
>> 402-438-6211  ext 1923  Office
>> 402-660-7982  Cell
>> mark.urbach at pnpt.com
>> [cid:image003.jpg at 01CA5BD5.1A5CEE20]
>>
>>
>>
>
>
> -- 
> Jason Biel
>


wfms


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