# Port reference

The following diagram illustrates communication ports used in Parallels RAS.

<figure><img src="https://content.gitbook.com/content/jRndoUJVjRrmCN0WR7H6/blobs/yR5ebN8uUpfLjT7DMLyi/portreference19.png" alt=""><figcaption></figcaption></figure>

The above diagram include SAML SSO components such as RAS Enrollment Server, however it does not include Tenant Broker.

**Tip**: If you are reading the PDF version of this guide, click the following link to view the full-sized diagram in a web browser: <https://download.parallels.com/ras/v19/docs/en_US/Parallels-RAS-19-Administrators-Guide/index.htm#47092.>