After completing the provisioning updates in Site1 for your border leaf, you must return to your External Fabric to trigger automated configuring of your Ext-Rtr.
Navigate back to your ExtL3 fabric:
With the actions you took in your Site1 fabric, take note that your ExtL3 fabric now has Pending configuration. This is part of the automation enabled between the fabrics and switch types to enable and configure external connectivity for the VXLAN EVPN fabric when the external device is also managed by NDFC. It now comes down to the user to trigger the deployment.
Navigate to Switches where you will trigger this pending configuration change by selecting your Ext-Rtr and issuing the Deploy action.
The configuration deployment to your external device is relatively small and includes the sub-interface configuration mentioned before:
Upon a successful deployment, NDFC's 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, NDFC will display a notification and the status reverted back to Out-of-Sync.
Back at the main Switches overview, your Ext-Rtr should display a Config Status of In-Sync.
After the configuration deployment to your Ext-Rtr, naviagate back to the Overview dashboard to confirm your switch is also now In-sync there.
Continue to the next section to create a Loopback interface on your external router that will advertised into BGP in the next sections of the lab.