When you enable replication on a master, you must assign a replication ID. The replication ID is used to distinguish the owner of update statements and to resolve conflicts that might occur with multimaster replication. Therefore, the replication ID must be unique for all master replicas of this suffix. Once set, the replication ID must not be changed.
You can use DSCC to perform this task. For information, see Directory Service Control Center Interface and the DSCC online help.
Enable the master replicated suffix.
$ dsconf enable-repl -h host -p port -d ReplicaID master suffix-DN
where ReplicaID is an integer between 1 and 65534.
For example, to create a master replicated suffix with replica ID 1, use this command:
$ dsconf enable-repl -h host1 -p 1389 -d 1 master dc=example,dc=com