Matches if the network exists during given time range. This is generally used to avoid processing networks that did not yet exist, or were deactivated before a time range of interest. By default, SOD uses a networkEffectiveTimeOverlap configured with the event arm's time range. If all you want to do is make sure your networks are active during your events, that's already done.
<networkEffectiveTimeOverlap> <startTime>20020701T00:00:00.001Z</startTime> <endTime>20021030T00:00:00.001Z</endTime> </networkEffectiveTimeOverlap>