NetOps ver 20.2.1
SD-WAN devices showing events even though the DX Virtual Network Assurance gateway is Operational Status down
Release : 20.2
Component : IM Reporting / Admin / Configuration
SD-WAN devices may also be discovered as SNMP.
You can verify by looking at the Monitored Devices detail screen in the Data Aggregator data source for the devices.
In this case, the devices would be coming from SNMP polling, not DX Virtual Network Assurance polling.