WARNING: As previously announced on our communication channels, the Kytos project will enter the "shutdown" phase on May 31, 2021. After this date, only critical patches (security and core bug fixes) will be accepted, and the project will be in "critical-only" mode for another six months (until November 30, 2021). For more information visit the FAQ at <https://kytos.io/faq>. We'll have eternal gratitude to the entire community of developers and users that made the project so far.

Kytos SDN Platform is the fastest way to deploy an SDN Network. With this you can deploy a basic OpenFlow controller or your own controller. Kytos was designed to be easy to install, use, develop and share Network Apps (NApps). Kytos is incredibly powerful and easy, its modular design makes Kytos a lightweight SDN Platform.

Kytos is conceived to ease SDN controllers development and deployment. It was motivated by some gaps left by common SDN solutions. Moreover, it has strong tights with a community view, so it is centered on the development of applications by its users. Thus, our intention is not only to build a new SDN solution, but also to build a community of developers around it, creating new applications that benefit from the SDN paradigm.

The project was born in 2014 and has been under active development since 2016.

For more information about this project, please visit Kytos project website.

You may try kytos without installing it by running our docker image. Just install docker from your package provider and run:

$ sudo docker run -it --privileged kytos/tryfirst

If you don't have Python 3 installed, please install it. Please make sure that you're using python3.6 or a later version:

$ apt install python3

Then, the first step is to clone kytos repository:

$ git clone https://github.com/kytos/kytos.git

After cloning, the installation process is done by standard setuptools install procedure:

$ cd kytos
$ sudo python3 setup.py install

After kytos installation, all config files will be located at /etc/kytos/.

Kytos also accepts a configuration file as argument to change its default behaviour. You can view and modify the main config file at /etc/kytos/kytos.conf, and the logging config file at /etc/kytos/logging.ini.

For more information about the config options please visit the Kytos's Administrator Guide.

Once Kytos is installed, you can run the controller using:

$ kytosd

Kytos runs as a daemon by default. To run it in foreground, add the -f option to the command line:

$ kytosd -f

You can use -h or --help for more information about options to the command line.

With the above commands your controller will be running and ready to be used. Please note that you have to run it as an user with permission to open sockets at ports 6653 and 8181.

Kytos installs automatically a web interface for administration. When Kytos is running, the Web UI runs in your localhost and can be accessed via browser, in http://localhost:8181. Have fun (:

You can find us on the #kytos IRC channel on freenode.net network.

We also have two mailing lists:

• Community List <community (at) lists (dot) kytos (dot) io> - where you can get help, from us and also from Kytos community, and also exchange experiences with other users.
• Devel List <devel (at) lists (dot) kytos (dot) io> - Kytos developers mailing list, in which the development of the project is discussed.

If you find a bug or a mistake in the documentation, you can help us by submitting an issue to our repo. Even better, you can submit a Pull Request to fix it. Before sharing a fix with the Kytos Community, please, check the :ref:`contributing-submission-guidelines` section.

We'd love for you to contribute to our source code and to make Kytos better than it is today!

This is one component of the Kytos project. For more information on how to get involved, please, visit the section :doc:`/developer/how_to_contribute` of the Kytos documentation. Our mailing lists are in :doc:`/home/get_help`.

For a complete list of authors, please see AUTHORS.rst.

If you want to contribute to this project, please read Kytos Documentation website.

This software is under MIT-License. For more information please read LICENSE file.

You are now ready to browse our guide for :doc:`administrators </admin/intro>` or :doc:`developers </developer/intro>`. Check out!