Alias Cell Names
You can give a cell more than one global name by creating an alias name for the cell. In this case, the cell has a primary name, which is the name that DCE services return for the cell when queried, and one or more cell aliases that the DCE services recognize in addition to the primary name. For example, if your cell is registered in the DNS global directory service, and you want to register it in GDS as well, you obtain a GDS name for the cell and set it up as a cell alias. The DNS name remains the primary name.
Managing Your Cell Name explains how to use the dcecp cellalias task object to manage your cell names. Restructuring a Namespace explains how to create a hierarchical cell.