How to test NIC performance using Iperf?

1. Purpose:

Iperf is a tool to test network bandwidth between two network devices.

This article instructs on how to perform a performance test between two devices using iperf.

2. Target Audience:

All users experienced with Linux OS distributions.

3. Procedures:

Step 1:  Install iperf.

For Debian: # apt-get install iperf3
For Fedora/Redhat/CentOS: # yum install iperf3

Step 2:  Run the command to listen on server side.

Server: #  iperf3 -s

Step 3: Run the command on client side.
Client: # iperf3 -c <server IP> -l <packet size> -u -b <bandwidth>

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