A login policy inherits logical server assignments from the root login policy when it has no logical server assignments of its own. By default, the logical server assignment of the root login policy includes only the OPEN logical server. This ensures that all multiplex servers are accessible when default configuration is in use.
The effective logical server assignment of a login policy is either from the logical server assignment that is made explicitly to the login policy or from the inheritance of logical server assignments of the root login policy.
You can completely remove existing logical server assignments from a user-defined login policy by setting the logical server assignment to DEFAULT. Setting the logical server assignment to DEFAULT in the root login policy restores the default assignment of OPEN logical server.
Logical server assignment of NONE is different from the case when there are no logical server assignments.