Flow statistics of openflow in ryu controller

[Jenushanth Sivakumar]

Hello everyone , 

I hope You all are doing  well.  I have been doing a research in mininet wifi with ryu controller and openvswitch. 

This program was written along with simple_switch_13 and I got a trace_file  using ping command in which how to find bandwidth? that is my question.And also I attach

 with my trace_file.Here I prefer to count bandwidth when sending packets.Anyone coudl you help me?

t

[Jenushanth Sivakumar]

Hi Ramon sir, 

  could you solve my problem?

[durga]

Hi

To calculate BW using flow-stats , you can use the formula (number of packets at t2 - number of packets at t1)/t2-t1. Please also note that icmp packets are tiny - hence it might not reflect correct bandwidth measurement. Rather, you can use traffic generation tools such as iperf to generate tcp/udp traffic, periodically measure flow tables and calculate BW using above formula

Hope that helps

Cheers!
Durga

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[Jenushanth Sivakumar]

Thank you Durga, 

 And one more question ,can bandwidth measurement be save into csv file that  have already sent