Besides listing all the NCL command and control verbs, the top level of NCL help includes the following topics: NCL_Introduction - Describes the syntax and usage of the Network Control Language. Subtopics provide help on: o Invoking NCL o Creating NCL log files o Commonly used NCL commands (create/delete, enable/disable, set/show, and add/remove) o Abbreviating NCL commands o NCL Syntax, with explanations of valid data types, verbs, entity names, attributes, required and optional command arguments, and node-id specification. Also describes the usage of prepositional phrases and wildcards. o Recalling previously entered NCL commands o Interpreting NCL command output o Specifying access control for a single NCL command o Setting default entity and access control context to be used for a series of NCL commands o Using snapshot commands to monitor counters o Methods of customizing the NCL environment Entity_Hierarchy - Describes most network components manageable using NCL. Includes diagrams showing each entity's location within the management hierarchy. Network_Management - Describes network management concepts and tools. Subtopics include: o Access control methods and policies o Management of naming services o Managing remote Phase IV and Phase V nodes o Logical names (OpenVMS) o Startup NCL Scripts (OpenVMS) o Shutting down and restarting DECnet (OpenVMS) o Managing MOP (OpenVMS) o Managing the Event Dispatcher (OpenVMS) o Running Over TCP/IP o The Tools subtopic includes descriptions of: - the Console Carrier - Network Management GUI - Decnet_migrate - Decnet_register - Configuration Monitor - NCP Emulator (OpenVMS) - DNS$Control (OpenVMS) - NET$Configure (OpenVMS) Event_Messages - Details possible event messages for each entity. Directory_Module - Describes the X.500 Directory Service module and NCL commands to manage the Directory System Agent (DSA) and its subentities. SNA_Peer_ Describes the SNA Peer Server Module and Server_Module - applicable NCL commands.