You can install the package with the command below, depending on your os:
$ yum install (see available packages in table below)
$ dnf install (see available packages in table below)

iPerf

iperf is a tool for active measurements of the maximum achievable bandwidth on IP networks. It supports tuning of various parameters related to timing, protocols, and buffers. For each test it reports the bandwidth, loss, and other parameters.

Available Packages:

Package Version
ulyaoth-iperf2 2.0.9
ulyaoth-iperf3 3.2

Supported Operating Systems:

Operating Systems Versions
Amazon Linux latest
CentOS 6, 7
Fedora 19, 20, 21, 22, 23, 24, 25
Oracle Linux 6, 7
Red Hat 6, 7
Scientific Linux 6, 7

ulyaoth support