Organizational subunits can be named relative to the enterprise root.
Given an organization root name, you can compose names for its subordinate organizational unit contexts by using one of the namespace identifiers, orgunit or _orgunit.
For example, if .../doc.com is the name of an enterprise, the root of the context for naming organizational units is .../doc.com/orgunit/, and organizational unit names look like .../doc.com/orgunit/sales and .../doc.com/orgunit/west.sales. Or, you could achieve the same result with org//orgunit/sales.
The following objects can be named relative to an organizational unit name:
Sites for that organizational unit (an extension to the XFN policies)
Hosts in that organizational unit
Users in that organizational unit
Services for that organization unit
File service for that organizational unit
For example, the name ...doc.com/orgunit/sales/service/calendar, identifies the calendar service of the sales organizational unit. (See "Organizational Unit Namespace" and "Composing Names Relative to Organizations" for a more detailed description of naming objects relative to organization units.)