Naming Context Replication Attributes

The following naming context replication attributes determine when, where, and how the objects of a naming context are replicated.
Replication attribute Description
Reps-From A replica link attribute that determines how and where directory information will be replicated. Lists the servers from which Microsoft Exchange Server will accept changes for a particular naming context.
Reps-To A replica link attribute that determines how and where directory information will be replicated. Lists the servers to which Microsoft Exchange Server will send changes for a particular naming context.
Reps-To-Ext A replica link attribute that determines how and where directory information will be replicated. Lists the servers to which Microsoft Exchange Server will respond to requests for changes for a particular naming context.
Period-Rep-Sync-Times Used to determine when the directory service will make a REQUEST for changes from servers on the Reps-From attribute list.
Replicator notify pause after modify (secs) A registry entry used to determine how often the directory service will NOTIFY servers on the Reps-To attributes that changes have occurred. By default, this is 5 minutes. This registry setting can be set in seconds under the following registry key:

HKEY_LOCAL_MACHINE\System\CurrentControlSet\
Services\MSExchangeDS\Parameters