Jeff W. Boote a écrit :
Thank you Jeff, will have alook at owamp. Maybe the one-way delay should be added to iperf (wich is very complete already).Nicolas Schmerber wrote:
Hello,
I'm new in networking and iperf usage. And I need a little bit help. For a script project I must get this values from site A to site B : Jitter delay, %loss pkts, and delay (not simple RTT)
iperf does not do one-way delay. One-way delay measurements take a bit more effort than the rest of these. Your end systems need to have accurately synchronized clocks. If you can synchronize the clocks, then there are a couple of applications out there that will compute one-way latency. Many of them actually require directly attached GPS.
See http://e2epi.internet2.edu/owamp for an example of one application that does one-way latency. owamp is a sample implementation of a protocol that is making its way through the IETF in an attempt to standardize a way to do this.
jeff