The iperf3 sensor integration allows you to measure network bandwidth performance against a private or public Iperf3 server.

Enabling this integration will automatically create the Iperf3 sensors for the monitored conditions (below). By default, it will run every hour. The user can change the update frequency in the configuration by defining the scan_interval for a Iperf3 test to run.


This integration requires the iperf3 command to be installed on your OS. Please, refer to the official Iperf3 documentation for installation instructions.


To add the iperf3 sensor to your installation, add the following to your configuration.yaml file:

Once per hour, on the hour (default):

# Example configuration.yaml entry
    - host: iperf.he.net

Configuration Variables

monitored_conditions list (Optional)

Sensors to display in the frontend.


The download speed (Mbit/s).


The upload speed (Mbit/s).

hosts list Required

A list of Iperf3 servers to perform the test against.

scan_interval time (Optional, default: 60 minutes)

Minimum time interval between updates. Supported formats: scan_interval: 'HH:MM:SS', scan_interval: 'HH:MM' and Time period dictionary (see example below).

manual boolean (Optional, default: false)

true or false to turn manual mode on or off. Manual mode will disable scheduled tests.

Configuration variables (host):

Configuration Variables

host string Required

Server name/IP address running Iperf3 to test against.

port integer (Optional, default: 5201)

Port that Iperf3 is running on.

duration integer (Optional, default: 10)

Specify the test duration in seconds. Default is 10 and the valid range is from 5 to 10.

parallel integer

Specify the number of concurrent streams to connect to the server. Default is 1 and the valid range is from 1 to 20.

protocol string (Optional, default: tcp)

Specify the protocol to be used on the test. Default is TCP and the valid values are TCP or UDP. If your Iperf3 server is located in the Internet, consider to use TCP instead of UDP. If the protocol is set to use UDP, the sensor may not get updated due to package retransmission issues due to its nature.

Time period dictionary example

  # At least one of these must be specified:
  days: 0
  hours: 0
  minutes: 3
  seconds: 30
  milliseconds: 0

You can find a list of public Iperf3 servers here. You can also start your own Iperf3 server using the mlabbe/iperf3’s Docker image or just refer to your iperf3 command’s man page.

The frequency when the test will be automatically triggered can be adjusted by setting the value scan_interval in seconds.

Parallel streams can help in some situations. As TCP attempts to be fair and conservative, you may consider increasing the parallel attribute. Use this value with careful and refer to Iperf3 man page for more information.

You can use the service sensor.iperf3_update to trigger a manual speed test for all sensors. Iperf3 has its own service call that allow to perform a speed test on a particular entity.


Once loaded, the iperf3 integration will expose a service (iperf3.speedtest) that can be called to run a speed test on demand. This can be useful if you have enabled manual mode.

| Service data attribute | Description | | host | String that point at a configured host from configuration.yaml. Otherwise, tests will be run against all configured hosts.

Example Service data:

{"host": ""}