I'm trying to calculate the difference between to two consecutive payloads. I'm using SNMP node to query a router interface and return data bytes received. I want to subtract value payload n from payload n+1 to obtain throughput figure per second. I've looked at context and function nodes but not n…

I use a delay node, then store the output in a flow variable Then the undelayed message go into a function which subtracts the flow variable from the current and divide with the delay time to get the rate.

How do I calculate diff between two consecutive payloads

General

Connicat 14 January 2019 09:04 5

Thanks for your responses. To be clear, I want to subtract content of payload n from payload n+1, not find the time gap between the two.

As suggested, I'm going to run two snmp nodes and fire the second one with a short delay. Store both to context and run function node to subtract one from the other.

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How do I calculate diff between two consecutive payloads

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