nanog mailing list archives
RE: Edu versus Speakeasy Speedtest
From: Blake Pfankuch <bpfankuch () cpgreeley com>
Date: Thu, 29 Apr 2010 10:10:44 -0600
Agreed. Most of the sites are not accurate for large bandwidth locations. Speedtest.net is flash based, however I find that slightly more accurate up to about 50-100mbit range. -----Original Message----- From: Bret Clark [mailto:bclark () spectraaccess com] Sent: Thursday, April 29, 2010 10:05 AM To: nanog () nanog org Subject: Re: Edu versus Speakeasy Speedtest All the new OS's (IE Windows7) automatically adjust TCP window size. Personally I've never found those website speed test to be that accurate on fast connections (over 15Mbps full duplex). The only way to really confirm bandwidth is by running IPERF. Robert Glover wrote:
Adjust your TCP window size. -----Original Message----- From: "Murphy, William" <William.Murphy () uth tmc edu> Date: Thu, 29 Apr 2010 10:53:01 To: nanog () nanog org<nanog () nanog org> Subject: Edu versus Speakeasy Speedtest I work for an Edu with multi-gigabit Internet connectivity and I get questions from users saying "Why am I only getting 14Mb when I run this speed test?" I have got to believe that the various Internet speed tests (Speakeasy or dslreports) are rate limited to prevent someone from shutting them down. I am able to get 300-400Mb running from a PC inside my network to NDT servers located on Internet2, so that tells me my border and internal network is healthy. Can someone on this list shed some light regarding reliability and accuracy of these various speed tests especially for an Edu with lots'o bandwidth? Thanks. Bill Murphy University of Texas Health Science Center - Houston
Current thread:
- Edu versus Speakeasy Speedtest Murphy, William (Apr 29)
- Re: Edu versus Speakeasy Speedtest Robert Glover (Apr 29)
- Re: Edu versus Speakeasy Speedtest Bret Clark (Apr 29)
- RE: Edu versus Speakeasy Speedtest Blake Pfankuch (Apr 29)
- RE: Edu versus Speakeasy Speedtest Scott Berkman (Apr 29)
- Re: Edu versus Speakeasy Speedtest Bret Clark (Apr 29)
- Re: Edu versus Speakeasy Speedtest Stephen John Smoogen (Apr 29)
- Re: Edu versus Speakeasy Speedtest gordon b slater (Apr 29)
- Re: Edu versus Speakeasy Speedtest Robert Enger - NANOG (Apr 29)
- Re: Edu versus Speakeasy Speedtest Steve Bertrand (Apr 30)
- Re: Edu versus Speakeasy Speedtest Jeff (Apr 30)
- Re: Edu versus Speakeasy Speedtest Bret Clark (Apr 30)
- Re: Edu versus Speakeasy Speedtest Jeff Kell (Apr 30)
- Re: Edu versus Speakeasy Speedtest Steve Bertrand (Apr 30)
- Re: Edu versus Speakeasy Speedtest Robert Glover (Apr 29)