timing out Bro state

Dear vern:
     Do you have added the code of Robin Sommer's code

about timing out Bro state , or Could tell me how
timing out Bro state fast? pipeline? UNIX pipe? let
another process do these work?

It works on the script level: There are table attributes that you
can use to specify how long entries are to be kept. Expired entries
are then removed from the table automatically.

This will be included in the next release of Bro.