Pre-installation Steps
There are three methods that a cloudSwXtch instance can be deployed using the Azure Portal: via template, via Terraform, and via the Market Place.
Out of those three options, the preferred method is via template as it will create the two subnets needed for a cloudSwXtch to operate. In addition, the Network Interface will have "Accelerated Networking" enabled.
Template Method (PREFERRED):
The template method is also mentioned in the Market Place cloudSwXtch installation as highlighted below:

Clicking on the “Templates” hyperlink shows more information about the template creation method.

Selecting this link will open the page below:

Alternative Install Methods
Market Place
While a user can create a cloudSwXtch via the Market Place, it will require additional work in terms of maintenance. For example, the cloudSwXtch would have to be updated to add a second NIC and then have accelerated networking manually enabled. With the template method, users can bypass all this.
If you still wish to use the Market Place method, you can find more information here.
Terraform
If you wish to deploy cloudSwXtch via Terraform, you can find more information here.
Air-Gapped
For closed environments, users can follow the Azure Air-Gapped installation instructions here.