Dear, Please let me extend my case in this problem. The real wireless network topology I have applied is Gateway1------Node 1------Node 2--------Gateway2. RYU controller is installed in Gateway 1. The control type is in-band control type by sharing Control TCP packet and Data TCP packet on the same physical wireless interface. Then the experiment has been executed to investigate about the TCP wireless link throughput. At the side of Gateway1, iperf -s is executed. At the side of Node 1, iperf -c <ip address of gateway1> -t 10000 -i 10. At the side of Gateway2, iperf -s is executed. At the side of Node 2, iperf -c <ip address of gateway2> -t 10000 -i 10. Strangely, the iperf testing between Gateway 1 and Node 1 is stopped at the time of 1000 seconds while the iperf testing between Gateway 2 and Node 2 can be executed up 10000 seconds. I define the same flows for iperf testing at the gateway 1 and gateway 2. For eg, i define the flow rules for TCP at gateway 1 to receive the TCP packet from node 1. I also define the same way of flow rules for TCP at gateway 2 to receive the TCP packet from node 2. If anyone face same kind of issue, please let me know your experience in solving for this problem.
Best Regards, Soe Ye Htet Future Internet and Wireless Research Group Chulalongkorn University On Sun, Sep 16, 2018 at 8:15 PM Soe Ye Htet <soeyehtet1...@gmail.com> wrote: > Dear RYU Team, > > I am trying to test the TCP link throughput between RYU controller and OF > Switch in my software defined wireless network. The implementation of > control plane is in-band by sharing the control traffic and the data > traffic in same physical wireless link. I plan to execute TCP throughput > between RYU controller and one OF switch by executing iperf command. At the > side of RYU controller, the command line of " iperf3 -s -d" is executed and > the command line of " iperf3 -c <ip address of RYU> -t 10000 -i 10" at the > OF Switch. Iperf3 was be operated up to 9600 seconds and then the TCP > connection between RYU controller and OF Switch. I am trying to investigate > what is real root cause of this problem. Can it be because of the failure > of TCP handshake between RYU controller and the OF switch. > > Best Regards, > Soe Ye Htet > Future Internet and Wireless Research Group > Chulalongkorn University, Thailand >
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