.. _example_interfaces_vti_checkvtitovti:

################
Check Vti To Vti
################


.. sidebar:: Contents

  .. contents::
    :depth: 1
    :local:

These scenarios show how to configure and route traffic via VTI
(Virtual Tunnel Interface) devices.

.. image:: vtivti.svg
  :width: 400

*************************
Test VTI Responder To VTI
*************************

Description
===========

A VTI device is configured in each
end-point. ``DUT1`` acts as an initiator
and ``DUT0`` as a responder.

Scenario
========

.. include:: checkvtitovti/testvtirespondertovti

.. raw:: html

  <hr>

*************************
Test VTI On-Demand To VTI
*************************

Description
===========

A VTI device is configured in each
end-point. In this scenario, ``DUT0`` is
configured to only set the tunnel up
when the first plaintext IP payload
needs to go through the vti tunnel.

Scenario
========

.. include:: checkvtitovti/testvtion-demandtovti

.. raw:: html

  <hr>