I use iperf with packet capture on both sides, then analyze the packet capture for per-second throughput and re-transmits. I usually do 10 TCP streams for 30 seconds. Note that on GigE with significant RTTs (5-15 ms) some TCP tuning is needed to deal with the bandwidth delay product. It is also possible that Ethernet drivers will have an effect. Local testing of the pair of test machines should be done if you can't get to about 980 Mbps on a Gig link (keeping in mind the comment about TCP tuning as latency increases). Jon On Mon, Nov 2, 2009 at 4:56 PM, Mark Urbach <mark.urbach@pnpt.com> wrote:
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]