:original_name: er_01_0019.html

.. _er_01_0019:

Attachment Overview
===================

You can create an attachment to attach a network instance to an enterprise router. The attachment type varies according to the network instance.


.. figure:: /_static/images/en-us_image_0000001294957952.png
   :alt: **Figure 1** Attachments

   **Figure 1** Attachments

.. table:: **Table 1** Attachments

   +----------------------------+-----------------------------------+------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+---------------------------------------------------------+-----------------------------------------------------------+
   | Attachment Type            | Network Instance                  | Create Attachment                                                                                                                                                                                                                                                                  | View Attachment                                         | Delete Attachment                                         |
   +============================+===================================+====================================================================================================================================================================================================================================================================================+=========================================================+===========================================================+
   | VPC attachment             | VPC                               | :ref:`Adding VPC Attachments to an Enterprise Router <er_01_0070>`                                                                                                                                                                                                                 | :ref:`Viewing Details About an Attachment <er_01_0021>` | :ref:`Deleting a VPC Attachment <er_01_0072>`             |
   +----------------------------+-----------------------------------+------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+---------------------------------------------------------+-----------------------------------------------------------+
   | Virtual gateway attachment | Virtual gateway of Direct Connect | Attach a virtual gateway to an enterprise router. For details, see `Connecting Your On-Premises Data Center to the Cloud <https://docs.otc.t-systems.com/direct-connect/umn/getting_started/enabling_direct_connect/connecting_your_on-premises_data_center_to_the_cloud.html>`__. |                                                         | :ref:`Deleting a Virtual Gateway Attachment <er_01_0073>` |
   +----------------------------+-----------------------------------+------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+---------------------------------------------------------+-----------------------------------------------------------+