Rulesets - Filtering multiple Events [ND.Cerberus checked]

[Alexander.Korn@allianz.at]

Does anyone solved a problem like mine? I try to build a ruleset which
filters multiple events coming up in high count and short time. It looks
simple but anyway, Ifound no solution.
I like to filter out all same events from the same node coming up in less
as a minute twice or more.
Any solution would be great for me.

many thanks in advance,