Does it do replication?

No but also yes. lldap uses an rdbms as its backing data store so replicate the databases and point lldap at each one.

We had a forest of openldap trees in 2002. Openldap had a replication integrated. Slapd (its more than 20 years ago forgive me if I get things wrong). You could use a counter or timestamps to resolf conflicts. How do you solve conflicts?

My bad slapd is the openldap daemon.