NCP

  The Network Control Program (NCP) is a utility program 
  system managers and operators use to configure and control 
  DECnet Phase IV for OpenVMS networks.  System managers can
  also use NCP to monitor network resources and test network
  components.

  More on-line help is available from the Network Control Program 
  utility. To invoke NCP, enter the following command in response
  to the DCL prompt:

  $ RUN SYS$SYSTEM:NCP

  The utility responds with the prompt:

  NCP>

  After you invoke NCP, you can enter HELP on any of the NCP commands.