iperf software package provides Internet Protocol bandwidth measuring tool, you can install in your Debian 8 (Jessie) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install iperf
iperf is installed in your system.
Make ensure the iperf package were installed using the commands given below,
$ sudo dpkg-query -l | grep iperf *
You will get with iperf package name, version, architecture and description in a table
| Distro | Debian 8 jessie |
| Section | Network |
| Package | iperf |
| Version | 2.0.5+dfsg1-2+b1 [s390x], 2.0. |
| Description | Internet Protocol bandwidth measuring tool |
| Sub Section | Net |