The `Reliable Datagram Sockets (RDS)`_ protocol must be disabled. Neither Ubuntu
14.04 or openstack-ansible enables this module by default, so the Ansible
tasks in this role will disable the module.

.. _Reliable Datagram Sockets (RDS): https://en.wikipedia.org/wiki/Reliable_Datagram_Sockets

To opt-out of this change, set the following variable to ``no``:

.. code-block:: yaml

    disable_module['rds']: no

**NOTE:** The module will be disabled on the next reboot.