Hello-
Yes, take a look at our scripting section. There are several examples there that deal with TCP sessions.
Since Unsniff keeps track of entire TCP streams, your job would be to loop over the streams collection. Use the Stream.StartTimestampSecs and EndTimestampSecs to track concurrent sessions.
If you want to draw a chart with concurrent connections over time, you have to use Ruby with FxRuby for the graphical interface (chart), again check the examples.
This seems to be a popular request, let me see if I have time to whip up a script.
Regards,
Tim Vincent (UNLEASH)
