Speaking from an iperf 2 perspective, there are a few ways to control server 1 and server 2 traffic start times and burst sizes in iperf 2.0.13 <https://sourceforge.net/projects/iperf2/>+
What operating systems are running on the servers? Can you synchronize the realtime clocks to a quality reference (e.g. a GPS disciplined OCXO oscillator <https://www.orolia.com/products-services/precision-timing/tsync-timecode-processors>) using precision time protocol to synchronize the realtime clocks? It's probably a good idea to put a controller device running python 3.5+ in devices and run something like python flows <https://sourceforge.net/p/iperf2/code/ci/master/tree/flows/> code. This requires ssh support on the servers (and where control master <https://en.wikibooks.org/wiki/OpenSSH/Cookbook/Multiplexing> capability is recommended if traffic starts and stops are being done by the controller.) Bob On Sat, Oct 26, 2019 at 9:28 AM shaukath ali via Iperf-users < iperf-users@lists.sourceforge.net> wrote: > Good Morning, > > I need to test test ECN in my Vendor switch with below topology : > > > > Server1 and 2 with be send traffic over TCP session with ECN > capability(ECT ). Once Switch finds congestion , switch will set ECN bit > as 11 indicating the it has experienced congestion to receiver server 3. > Hence receiver with send info to sender to reduce the transmission rate. > > > Need to test this scenario and finding for the tool to be installed in > servers to send traffic over TCP session and over 10G pipeline. > > Need your suggesstions on this, whether this could be achieved using iperf > or not. What are other options to achieve this. > > Thanks in adavance. > > Shaukath. > _______________________________________________ > Iperf-users mailing list > Iperf-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/iperf-users >
_______________________________________________ Iperf-users mailing list Iperf-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/iperf-users
