You’ve already set up the initial plan for your Site1 Greenfield VXLAN EVPN fabric. You have also added your switches, assigned their roles, and created a vPC domain between two leaf switches. These steps prepared your network for the next phase, called Day0 provisioning.

Instead of doing everything at once, this section focuses on deploying your configuration plan (configuration intent). Doing this will update your switches from “Out-of-Sync” to “In-Sync”.

To start, use the “Recalculate and Deploy” action at the fabric level:

• Recalculate updates each switch’s configuration based on its role and shows you the progress.
• Deploy sends these updates to the switches, and you can watch the progress just like when you imported the switches.

Step 1 - Trigger Initial Deployment to Greenfield Fabric

At the top right of the Site1 fabric, locate the fabric-level Actions button:

1. Click Actions
2. Click Recalculate and Deploy






After clicking Recaculate and Deploy, Nexus Dashboard will generate the configuration based on intended configuration best practices per role from templates and your user input when you created the fabric initially. The screenshots below give you some examples of the displays NDFC provides you to know where the operation is at in the process for recalculating:

This step will take some time depending on the configuration.

Step 2 - View Pending Config

Once the intended configuration has been generated, Nexus Dashboard provides the option for you to review the configuration in the Deploy Configuration first stage called Config Preview. As an example, locate Site1-L1:

1. Under the column Pending Config for Site1-L1, click 608 Lines-- NOTE: This number may vary depending on the version of code.

2. A popup with the Pending Config for Site1-L1 should appear. Ensure the Pending Config tab is selected (this should be the default). You can see the pending configuration that is to be deployed to this particular switch.

3. Click the Side-by-Side Comparison tab which will display the difference between the running config and the expected config (config to be deployed by Nexus Dashboard) for this particular switch
4. When done examining the pending config and config difference feature, click Close

Step 3 - Deploy Initial Config

Upon closing Pending Config, you will be back in the Deploy Configuration wizard and you can proceed with deployment:

1. In the bottom right, click Deploy All






The stage moves to the second stage called Deploy Progress where the Out-of-Sync status will change to STARTED while Nexus Dashboard deploys each switch's role specific configuration. Make note that you can see the progress bar for the executed number of lines being configured:

Step 4 - Exit Deploy Configuration

Upon a successful deployment, Nexus Dashboard Deploy Configuration wizard should look as shown in the screenshot below; all green with SUCCESS messages and each switch's expected configuration progress bar also displaying as green and fully executed. If any error occurred, Nexus Dashboard will display a notification and the status reverted back to Out-of-Sync.

1. After your done reviewing the deployment progress, click Close in the bottom right

Step 5 - Review Switches Overview

Back at the main Switches overview, each switch in your Site1 fabric should display a Config Status of In-Sync. Additionally, the VPC Role and VPC Peer columns should be popoulated with role and peer statuses between Site1-L1 and Site1-L2. If these columns are not populated yet, give it a brief moment while NDFC syncronizes. This deployment action provisioned the entire underlay for you. You will verify the configuration deployed to your fabric a little later in the lab after configuration deployment of your first overlay.

Step 6 - Revisit Main Overview Dashboard After Initial Deployment

Revisist the main Overview dashboard and now examine what the dashboard is populated with after initial deployment.

1. Click Overview

Notice the Switch Configuration status, Switch Roles and VXLAN information are updated and in a healthy state. VXLAN should show 6 Routing Loopbacks for the 6 switches and 4 VTEP Loopbacks that coorespond to the 4 NVE interfaces for the 4 Leaf switches in your Site1 fabric. If not all VXLAN interfaces statuses are green, again, give it a brief moment.

Continue to the next section to start creating interface configuration of different types.