Sure. There are three logging levels for traps in Delphix: Critical, Warning, and Informational. Each SNMP trap that Delphix can send falls into one of these three categories. If you configure Delphix with an SNMP severity level of Critical, Delphix will only send out traps for events labeled as Critical. If you configure the SNMP severity level of Warning, Delphix will send out traps for events labeled as Critical and Warning. Setting the SNMP severity level as Informational sends outs traps for all three groupings from Delphix. This model it typical of most severity-based systems (i.e. log4j, etc.)
You cannot change the behavior of Delphix in regards to what it determines is a critical event vs. informational. If someone wanted to change the severity of a trap (i.e. provisioning a new vdb should be a critical event), then they would need to do so in an event management software that receives the original trap from Delphix and then uses logic to log a critical event in a monitoring system or forward a new trap based on that logic. This is the common case across enterprise software, as I used to work for a company that had a product that performed this very action.
I hope this helps.