Re: Speed Testing and Throughput testing

[William F. Maton Sotomayor]

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@apog.net>wrote:
>
> > Hello,
> >
> > Iperf is pretty good at this ... It s free
> >
> >
> > Ben
> >
> >
> > -----Message d'origine-----
> > De : Mark Urbach [mailto:mark.urbach@pnpt.com]
> > Envoyé : lundi 2 novembre 2009 22:57
> > À : nanog@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@pnpt.com
> > [cid:image003.jpg@01CA5BD5.1A5CEE20]
> --
> Jason Biel
wfms