I have the same question here. Since switching to IWAN, we get flooded with alerts when a circuit goes down. Looking for a way to have it only alert on the first neighbor, instead of each of them. Since the neighbors are just IPs the router knows and not nodes, it makes it difficult to setup dependencies.
Has anyone been able to come up with a solution to this? I am currently tasked in finding a way to resolve this in our facility as well...