Ok, after some private discussion, i think your question revolves around a few potential solutions:
Service Insight - allows you to gather together instances/resources into a group, called a service, which has aggregated metrics from all the members of the group. This would be how you would alert on site down situations where you have multiple uplinks from the site to the backbone.
Cluster alerts - more here.
Topology Awareness - LM can learn your topology to know about downstream outages caused by an upstream incident.
If you're in POV, you should discuss these with your Sales Engineer as they should be able to explain how you'd use this to solve problems in your environment. You could also reach out to your CSM. We also have an Ask Me Anything style webinar tomorrow where we could discuss this in person. Register here.
