PowerEdge: How to test network bandwidth using 'iperf'

dnf install iperf3

sudo apt install iperf3

On the server receiving data, run the following command:

iperf3 -s

The port used (Default 5201) must be opened if a local firewall is enabled. You can specify a specific port If needed with the "-p <port>" option.

On the server sending data, run the following command:

iperf3 -c x.x.x.x

Replace the <x.x.x.x> with the IP address of the server from step 2.
 

Figure 1: Image of iperf3 running on Windows as server ready to receive data.  

 

Figure 2: Image of iperf3 running on Linux as client showing transfer results
 

The iperf3 utility is a commonly used network testing tool that measures the throughput of a network between two systems.

It allows the user to set various parameters that can be used for testing a network, or alternatively for optimizing or tuning a network. It has a client and server functionality and can measure the throughput between the two ends, either unidirectionally or bi-directionally. It is open-source software and runs on various platforms including Linux, Windows, and VMware.

If a specific interface address must be used, you can specify the address to use with the "-B <x.x.x.x>" option.
When testing networks above 10G speeds its best to connect the client with multiple threads using the "-P <threads>" option.