This article describes how to configure an Alert for port Down / UP, etc., in the Mist portal.
Mist port does not show any alert for Port Down or Up.
How to configure email alerts in Mist
In Juniper Mist, alerts present network and ongoing device issues. You can view alerts on the Juniper Mist portal by selecting Monitor > Alerts.
You can set up alerts and email updates for when certain ports on a WAN Edge device go online or offline. To configure alerts for specific ports, you need to label these ports in LAN or WAN settings of WAN Edge device.
To configure the alerts and notifications for specific ports, you must:
Repeat these steps for all critical ports.
SSR WAN Edge Monitoring