I don't think iperf3 supports this. I think you'll need to use iperf2. Bob
On Fri, Jan 18, 2019 at 12:04 AM karima smida <karima.sm...@gmail.com> wrote: > Hi Bob, > First, thank you for your reply. Please, as I m a beginner, can you help > me with a solution with iperf3 and Synchronisation with NTP, a tutorial or > a video... Thank you in advance. > > karima. > > Le mer. 16 janv. 2019 19:24, Bob McMahon <bob.mcma...@broadcom.com> a > écrit : > >> Hi Karima, >> >> For iperf 2 <https://sourceforge.net/projects/iperf2/>use the -e >> option. This assumes the clocks on the client and server are synchronized >> to a level of the precision one cares about. We use a GPS disciplined oven >> controlled oscillator in our labs for a high quality reference then use >> precision time protocol to distributes that clock. >> >> o) Support end/end latency in mean/min/max/stdev format (UDP) (-e >> required) (assumes client and server clocks synched, e.g by Precision Time >> Protocol to an OCXO oscillator per Spectracom) >> >> There is also support for full histograms vs mean/min/max/standard >> deviation. >> >> o) Latency histograms for both packets and frames (e.g. >> --udp-histogram=10u,200000, 0.03, 99.97) >> >> More on enhanced features here >> <https://sourceforge.net/projects/iperf2/files/Iperf%202.0.13a%20Enhancements.pdf/download> >> . >> >> Also, suggested use the latest 2.013a from sourceforge. We're very close >> to releasing 2.0.13 >> >> Bob >> >> On Wed, Jan 16, 2019 at 3:11 AM karima smida <karima.sm...@gmail.com> >> wrote: >> >>> Hi all, >>> please how to calculate End to End delay from informations returned by >>> iperf? >>> In fact, I want to use iperf to inject UDP traffic in may SDN network to >>> test its performance in terms of delay and overhead. >>> Thank you for help. >>> >>> -- >>> >>> _______________________________________________ >>> Iperf-users mailing list >>> Iperf-users@lists.sourceforge.net >>> https://lists.sourceforge.net/lists/listinfo/iperf-users >>> >>
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