Using delta with events that need to be grouped by... - Splunk Community

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I have events that contain a counter of a number of packets sent. Each event applies only to a single port.

How do I graph the rate of packets sent per port?

I've tried using delta, but I can't work out how to do that per port.

delta is only really a comparison between 2 events.

Would something like this work?

| timechart packets by port

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