Separate trees openldap

Hi guys,

I'm trying to accomplish a configuration that I'm not aware of. I need to replicate several directories (AD, openldap, etc) to a unique repository (my openldap). The thing is I need to have completely separate trees for each domain (client). Any ideas in how to do that? bellow is an example what I'm thinking of:

dc=example,dc=com cn=users cn=groups

------------------------------ complete separation dc=domain,dc=com cn=users cn=groups

------------------------------ complete separation dc=test,dc=ca cn=users cn=groups

------------------------------ complete separation

thx,

sergio