LDAP modify doesn't update replicas

When updating a seondary names.nsf via an ldap client (Netscape’s ldapmodify.exe), replicas of the address book don’t receive all of the updates.

In my environment, the replicas are part of a cluster and should be updated immediately.

Additions and modifications do not show up immediately, but they do show up after a scheduled replication.

The big problem is deletions. Deletions via ldap never happen in the clustered replicas. Can’t find any info on this topic in the documentation.