To generate round-trip traffic you have to enable echo services on the target host and then send to that port. On a Windows box I think it's called "Simple TCP Services" and then you send the traffic to TCP Echo. HTH, Josh -----Original Message----- From: Holmes,David A [mailto:dholmes@mwdh2o.com] Sent: Thursday, December 04, 2008 5:09 PM To: Stephens, Josh; Nathan Ward; nanog list Subject: RE: Stress Testing LAN/WAN I have used Solarwinds Wan Killer, but have yet to discover a method of initiating round-trip traffic from a single generator, but Solarwinds can stress a GiGE MAN link using a desktop PC with a GiGE card as the generator. -----Original Message----- From: Stephens, Josh [mailto:Josh.Stephens@solarwinds.com] Sent: Thursday, December 04, 2008 2:53 PM To: Nathan Ward; nanog list Subject: RE: Stress Testing LAN/WAN You can download a copy of the SolarWinds toolset from our website (the eval is free). There's a traffic generator in there called "WAN Killer". Give it a try. Josh -----Original Message----- From: Nathan Ward [mailto:nanog@daork.net] Sent: Thursday, December 04, 2008 4:27 PM To: nanog list Subject: Re: Stress Testing LAN/WAN On 5/12/2008, at 11:23 AM, Brian Feeny wrote:
I have the need to stress test a LAN and WAN. The primary concern is the WAN which is at most OC-3. The LAN would be an additional bonus if I could do that as well. I am familiar with tools such as those from Spirent and IXIA which are very expensive. I was wondering if someone has had to do this and can recommend some open source tools that would work well. I need to test a few different types of traffic, specifically trying to push traffic into various switch/ router policies to make sure everything is performing as expected. If anyone knows of some software that works well for this I would appreciate letting me know.
iPerf. -- Nathan Ward