Upstream Resource Monitoring (URM)

You can configure Juniper Mist Edge to monitor the health of the upstream resources. This configuration helps determine the reachability of those resources from the Juniper Mist Edge data ports. If the health check of the upstream resource fails, the Juniper Mist Edge prompts the APs to failover to the next member and temporarily shuts down the tunnel terminator service. The shutdown continues until the upstream resources become healthy and reachable again.

You can configure the upstream resource monitoring on the Mist Cluster page. The option is disabled by default. For more information, see Configure Upstream Resource Monitoring. You can configure multiple resources using different protocols to monitor the health check. Protocols to monitor a resource include ARP, PING, and TCP. Even if one of the health checks fails, Juniper Mist Edge prompts APs to failover to another Juniper Mist Edge. Commonly used health checks are ARPing or PINGing the default gateways.