Business need is that with an architecture that has firewalls between Domino servers, and that Directory Assistance is set to do remote lookups, a Domino server will open a poll of connections to the remote Domino server (LDAP or whatever). By default, firewalls are set to have hard timeouts on idle connections after 30 minutes. In this case, Domino gets its remote connections killed and is not being notified on those failures.
The enhancement request is to allow the use of parameters to set keep alives on those connections so Domino is not impacted by those hard timeouts.
There are circumstances where a customer, for security reason is not allowed to set exception rules in the firewalls.