OID value: 2.16.840.1.113730.3.4.14
OID description:
Implemented in iPlanet Directory Server 5.0 and later.
This control can be used in search operation only
to specify that the search must be done on the backend
which name is given as the control value.
URL for further info: http://docs.iplanet.com/docs/manuals/directory.html
See also the OID Repository website reference for 2.16.840.1.113730.3.4.14