The test plan you use depends upon what you want to test - raw pps throughput, route convergence time, qos performance, etc. We use Exfo (http://www.exfo.com) testers working to a mac-swap loopback for commissioning testing of Ethernet access circuits, looking at the usual loss/throughput/latency/jitter metrics and burst size. When checking out new equipment in the lab we also use scapy scripts (http://www.secdev.org/projects/scapy/) to look at things like Ethertype and L2CP transparency. Jonathon -----Original Message----- From: Jason Leschnik [mailto:leschnik@gmail.com] Sent: Tuesday, 27 September 2011 3:02 a.m. To: jiaruchen@gmail.com Cc: George Jones; nanog@nanog.org; Naiden Dimitrov Subject: Re: flow generating tool Does anyone follow a network performance testing methodology, using hardware from companies like ixia/spirent? I know that basic testing is typically done for validation of configs, but i assume other issues would make themselves apparent when pushed to these higher loads. thoughts/comments? Thanks -- Regards, Jason Leschnik. [m] 0432 35 4224 [w@] jason dot leschnik <at> ansto dot gov dot au<jason.leschnik@ansto.gov.au> [U@] jml974@uow.edu.au This email and attachments: are confidential; may be protected by privilege and copyright; if received in error may not be used, copied, or kept; are not guaranteed to be virus-free; may not express the views of Kordia(R); do not designate an information system; and do not give rise to any liability for Kordia(R).