Multi-master setup

I'm trying to set up a multi-master ldap with openldap on SL/RHEL 6.1 from the docs here: http://www.openldap.org/doc/admin24/replication.html#N-WayMulti-Master

I created an ldif file with:

dn: cn=config objectClass: olcGlobal cn: config olcServerID: 1

dn: olcDatabase={0}config,cn=config objectClass: olcDatabaseConfig olcDatabase: {0}config olcRootPW: ***

But all attempts to import it fail, both with ldapadd as with slapadd. I think I may be getting the whole cn=config way of doing things wrong. Can anyone point me in the right direction?

Thanks