This displays the type of network statistics being collected. You can change the type of statistics collected by setting the checkbox beside each statistics entry and clicking update. If you have a large network with lots of traffic and problems with the probe using too much memory and processor resources, you can turn off statistics that take much memory.
The interval settings are used for the line chart displaying traffic amount over time. Interval durations can be set from 1 hour to 2 days, and interval times from 10 seconds to 3 hours. A long duration combined with a small time would comsume a lot of memory on large networks.