Thanks @nathaniel; unfortunately due to shifting requirements here I’m having to pivot away from using Kapacitor to do this sort of thing and escalate to storing all the SNMP data in InfluxDB and simply doing a CQ in InfluxDB for the rollup aggregation to keep the stack as simple and stateful as possible (which ironically we managed to knock out in a single day yesterday!)
@jackzampolin worked out a CQ with me here to perform the aggregation, and it looks like it’s working quite well (Derivative downsample CQ).
Thank you for all your help and quick responses! I greatly appreciate it 
