[dpdk-users] DPDK-pktgen Flows

["Merve Orakcı" <merveorakci58@gmail.com>]

Hi everyone, I will get flows using the "range" command. So I am reviewing
documents and sample codes about this topic. I would like to ask a few
things that I cannot understand. What is the flow generation procedure of
range command? Take port 0 as an example. 128 different ip addresses and
2000 different port numbers are used for source and destination. As far as
I understand, these lines are repeated for each package.But how is the flow
creation procedure?
My opinions:
First: Is it a random port number and ip address for each pass over the
file? So total 128 * 2000= 256000 flows were created here.
Second: when we think of increment operator, generated packets:
1. packet:  dst_ip: 192.168.1.1  ,  src_ip:  192.168.0.1 , dst_port: 2000 ,
src_port: 5000
2. packet   dst_ip: 192.168.1.2  ,  src_ip:  192.168.0.2 , dst_port: 2001 ,
src_port: 5001
................................
128. packet:   dst_ip: 192.168.1.128  ,  src_ip:  192.168.0.128 , dst_port:
2128 , src_port: 5128
129.packet      dst_ip: 192.168.1.1  ,  src_ip:  192.168.0.1 , dst_port:
2129, src_port: 5129  or (???)  dst_ip: 192.168.1.128  ,  src_ip:
192.168.0.128 , dst_port: 2129, src_port: 5129

then it will end when source and destination port numbers reach their
highest value..

........
Can you help with this issue? I want to measure the performance of the
system that I have created in different flow numbers with the pktgen tool.
For this reason, the number of flows is important for me. Thanks for your
help.

pktgen.range.dst_mac("0", "start", "3c:fd:fe:9c:5c:b8");

pktgen.range.src_mac("0", "start", "3c:fd:fe:9c:5c:d8");

pktgen.range.dst_ip("0", "start", "192.168.1.1");

pktgen.range.dst_ip("0", "inc", "0.0.0.1");

pktgen.range.dst_ip("0", "min", "192.168.1.1");

pktgen.range.dst_ip("0", "max", "192.168.1.128");

pktgen.range.src_ip("0", "start", "192.168.0.1");

pktgen.range.src_ip("0", "inc", "0.0.0.1");

pktgen.range.src_ip("0", "min", "192.168.0.1");


pktgen.range.src_ip("0", "max", "192.168.0.128");

pktgen.set_proto("0", "udp");

pktgen.range.dst_port("0", "start", 2000);

pktgen.range.dst_port("0", "inc", 1);

pktgen.range.dst_port("0", "min", 2000);

pktgen.range.dst_port("0", "max", 4000);

pktgen.range.src_port("0", "start", 5000);

pktgen.range.src_port("0", "inc", 1);

pktgen.range.src_port("0", "min", 5000);

pktgen.range.src_port("0", "max", 7000);

pktgen.range.pkt_size("0", "start", 64);

pktgen.range.pkt_size("0", "inc", 0);

pktgen.range.pkt_size("0", "min", 64);

pktgen.range.pkt_size("0", "max", 256);

-- Set up second port

pktgen.range.dst_mac("1", "start", "3c:fd:fe:9c:5c:d8");

pktgen.range.src_mac("1", "start", "3c:fd:fe:9c:5c:b8");


pktgen.range.dst_ip("1", "start", "192.168.0.1");

pktgen.range.dst_ip("1", "inc", "0.0.0.1");

pktgen.range.dst_ip("1", "min", "192.168.0.1");

pktgen.range.dst_ip("1", "max", "192.168.0.128");

pktgen.range.src_ip("1", "start", "192.168.1.1");

pktgen.range.src_ip("1", "inc", "0.0.0.1");

pktgen.range.src_ip("1", "min", "192.168.1.1");

pktgen.range.src_ip("1", "max", "192.168.1.128");

pktgen.set_proto("all", "udp");

pktgen.range.dst_port("1", "start", 5000);

pktgen.range.dst_port("1", "inc", 1);

pktgen.range.dst_port("1", "min", 5000);

pktgen.range.dst_port("1", "max", 7000);

pktgen.range.src_port("1", "start", 2000);

pktgen.range.src_port("1", "inc", 1);

pktgen.range.src_port("1", "min", 2000);

pktgen.range.src_port("1", "max", 4000);

pktgen.range.pkt_size("1", "start", 64);

pktgen.range.pkt_size("1", "inc", 0);

pktgen.range.pkt_size("1", "min", 64);

pktgen.range.pkt_size("1", "max", 256);

pktgen.set_range("all", "on");

-- 
*Merve Orakcı*
Research Asistant
Gazi University - Institute of Informatics
Computer Forensics
Phone :+90 0312 202 3814