nanog mailing list archives

Re: Speed Testing and Throughput testing


From: Jason Biel <jason () biel-tech com>
Date: Tue, 3 Nov 2009 06:49:05 -0600

Linux always worked best for us as well, was easy running a livecd with
laptops.  We found that two windows XP machines, same identical hardware and
OS load yielded different registry settings (or lack thereof) for TCP Window
setting.

Jason

On Tue, Nov 3, 2009 at 6:18 AM, Bret Clark <bclark () spectraaccess com> wrote:

  True, we usually find Linux based machines work better running IPerf
  then Windows (at least out of the box) because of the TCP window
  size....well Windows XP at least, don't know about Vista or 7.
   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.

Jason

On Tue, Nov 3, 2009 at 4:01 AM, Benoit VANNIER [1]<benoit.vannier () apog net
wrote
:


Hello,

Iperf is pretty good at this ... It s free


Ben


-----Message d'origine-----
De : Mark Urbach [[2]mailto:mark.urbach () pnpt com]
Envoyé : lundi 2 novembre 2009 22:57
À : [3]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
[4]mark.urbach () pnpt com
[[5]cid:image003.jpg@01CA5BD5.1A5CEE20]

References

  1. mailto:benoit.vannier () apog net
  2. mailto:mark.urbach () pnpt com
  3. mailto:nanog () nanog org
  4. mailto:mark.urbach () pnpt com
  5. cid:image003.jpg@01CA5BD5.1A5CEE20




-- 
Jason Biel


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