This specifies the base directory or name entry to use when creating reverse address mapping links for a node name (also called the back translation links). REVERSE_DIRECTORY rev-dir-name The links under this directory are used to map NSAP values to their respective node names. These directories are used only for the DECdns directory service. If not specified, the reverse address directory name defined in the export file is used. If the export file does not contain a reverse address directory name definition for the target directory service, then the reverse directory name set using the SET DEFAULT command is used. For more information, please refer to the NAMES_AND_DIRECTORIES topic. See the EXPORT_FILE topic for a description of the reverse address directory control line.