Iperf is a tool for network performance measurement and tuning. It is a cross-platform tool that can produce standardized performance measurements for any network. Iperf has client and server functionality, and can create data streams to measure the throughput between the two ends in one or both directions. Typical iperf output contains a time-stamped report of the amount of data transferred.
iperf is a command-line tool that allows you to test the bandwidth, any way you like. Unlike online speed tests, you have to provide both server and client. In other words, when doing an online speed test, you connect to a server on the internet, owned by the provider of the test (like ookla).
What is iperf iperf3 ? Iperf3 is a tool for active measurements of the maximum achievable bandwidth on ip networks. It supports tuning of various parameters related to timing, buffers and protocols (tcp, udp, sctp with ipv4 and ipv6).
The iperf is a tool used for testing the network performance between two systems. The iperf application provides more metrics for a networks performance. The iperf application is not installed by default, but it is provided by most distributions package manager. For centosrhelfedora systems use the yum, to install the iperf package.
iperf is an open-source tool designed to test network bandwidth between two network nodes. The iperf allows to generate tcp and udp trafficload between two hosts.