How to stress test network traffic?

There are many network testing software. Today, we will introduce two commonly used ones, namely iptraf3 and netperf. The indicators of network testing are: PPS and peak intranet bandwidth.

iptraf software

 yum -y install gcc gcc-c++ autoconf glibc glibc-devel sysstat nload
 yum install -y iptraf3

(1) Description of some iptraf3 parameters:

(2) Query bandwidth peak value

Server execution: iperf3 -s -i 1 -p 10000

Client execution: iperf3 -c 192.168.10.163 -t 30 -P 2 -p 10000 (parameter -P means parallel operation)

(3) Query pps

Server: iperf3 -s -i 1 -p 10000

Client: iperf3 -u -l 16 -c 192.168.10.163 -t 30 -P 2 -p 10000

Note: sar -n DEV 1 100 to view the packet frequency

Netpraf software installation

 yum -y install gcc gcc-c++ autoconf glibc glibc-devel sysstat nload
 wget -c "https://github.com/HewlettPackard/netperf/archive/netperf-2.7.0.tar.gz" -O netperf-2.7.0.tar.gz
 tar -zxvf netperf-2.7.0.tar.gz
 cd netperf-netperf-2.7.0
 ./configure && make && make install && cd ..

(1) After Netperf is installed, two tools will be generated: netserver and netperf. The following are the main parameters of the two tools.

(2) Query the bandwidth peak server: netserver -p 16000

Client: netperf -H 10.10.40.5 -p 16000 -t UDP_STREAM -l 30 -- -m 1400

Parameter Explanation

(3) Query PPS data packets

Server: netserver -p 16000

Client netperf -H 10.10.40.5 -p 16000 -t UDP_STREAM -l 30 -- -m 1

This data may not be accurate, it is better to use sar -n DEV 1 1000.

Tip: If you are performing network stress testing on multiple machines, it is best to use one of the tools to perform stress testing.