case trying to use one of the speedtest.net servers - we had a clear 10G

Agreed. We actually started hosting our own speedtest.net server in order to get some more consistent results. Still nothing like iperf. But a decent "Quick and dirty" type of test. Nick Olsen Network Operations (855) FLSPEED x106 ---------------------------------------- From: "Nick Hilliard" <nick@foobar.org> Sent: Tuesday, August 14, 2012 11:09 AM To: nanog@nanog.org Subject: Re: Testing 1gbps bandwidth On 14/08/2012 15:43, valdis.kletnieks@vt.edu wrote: path

out through like 3 AS's in a row, the bottleneck was speedtest.net's server. :)

you'll have to forgive me for being the cynical type, but I gave up on Speedtest the day they reported 146Mbit/sec download over a link which was hard-wired to 100Mbit/sec full duplex, and later that day they reported 2Mbit from another nearby server to the same box. I figured a stddev of 2 orders of magnitude wasn't going to give me figures accurate enough for my requirements. But hey, this is the Internet: ymmv, ianal, lolwut, bbq. Nick