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! NCP.MEM  -  Network Control Program help file
! NCP.RNO  -  DSR source file of the help file
! Updated February 24, 1982.  Son VoBa.

!                    COPYRIGHT (c) 1980, 1981, 1982
!                    DIGITAL EQUIPMENT CORPORATION
!                        Maynard, Massachusetts
!
!     This software is furnished under a license and may  be  used
!     and copied only in accordance with the terms of such license
!     and with the inclusion of the above copyright notice.   This
!     software  or any other copies thereof may not be provided or
!     otherwise made available to any other person.  No  title  to
!     and ownership of the software is hereby transferred.
!
!     The information  in  this  software  is  subject  to  change
!     without  notice  and should not be construed as a commitment
!     by DIGITAL EQUIPMENT CORPORATION.
!
!     DIGITAL assumes no responsibility for the use or reliability
!     of  its  software  on  equipment  which  is  not supplied by
!     DIGITAL.
!
! The .MEM file should reside in the HLP: directory of the running system.
!
! Each NCP command has an entry in this file.  The entries must be
! alphabetically ordered and must be preceeded with an "*" in column 1.
!
! Additional entries may be added to this help file, but with care.
*
NCP enables an operator to perform network control functions
like  changing  parameters, gathering information, down-line
loading, up-line dumping, triggering bootstrap, testing link
and network, and zeroing counters.

Help for a specific command may be obtained  with  the  HELP
command as follows:

        NCP> HELP keyword [additional parameter]

For instance, if you wish additional information  about  the
CANCEL command you would type "HELP CANCEL"

*CANCEL

   CANCEL is used to remove a command from the queue  before
   processing  begins.   You  can  check  the  status of the
   command with the SHOW QUEUE command.

*CLEAR

   CLEAR is used to clear parameters of an entity  from  the
   volatile data base.  Additional information available

      CLEAR CIRCUIT
      CLEAR EXECUTOR NODE
      CLEAR LINE
      CLEAR LOGGING
      CLEAR NODE

*CLEAR CIRCUIT

   CLEAR CIRCUIT is  used  to  clear  the  volatile  circuit
   parameters for the circuit(s) identified in the command.

*CLEAR EXECUTOR NODE

   CLEAR EXECUTOR NODE is used to reset the EXECUTOR to  the
   node on which the NCP program is running.  Note that this
   command does not return the executor to the value in  the
   permanent data base.

*CLEAR LINE

   CLEAR LINE is used to clear the volatile line  parameters
   for the line(s) identified in the command.

*CLEAR LOGGING

   CLEAR LOGGING is used to control the logging  of  events,
   both  the  events that will be logged and where they will
   be logged.

*CLEAR NODE

   CLEAR NODE is used to clear the  volatile  parameters  of
   the node identified as node-id or set as EXECUTOR.

*DEFINE

   DEFINE is used to modify values  in  the  permanent  data
   base  of  the  identified entity.  Additional information
   available

      DEFINE CIRCUIT
      DEFINE LINE
      DEFINE LOGGING
      DEFINE NODE

*DEFINE CIRCUIT

   DEFINE CIRCUIT is  used  to  set  the  permanent  circuit
   parameters for the circuit(s) identified in the command.

*DEFINE LINE

   DEFINE LINE is used to set the permanent line  parameters
   for the line(s) identified in the command.

*DEFINE LOGGING

   DEFINE LOGGING is used to control where  the  events  are
   logged (event sinks) and which events get logged.

*DEFINE NODE

   DEFINE NODE is used to set the permanent  parameters  for
   the node identified as node-id or set as EXECUTOR.

*DUMP

   DUMP is used to store a copy of the target's memory image
   in a dump file at the host node.

*ENTER

   ENTER is used to enter an alternative  command  processor
   for an application type.

*EXIT

   EXIT is used to leave NCP command level and return to the
   TOPS-20 monitor command level.

*HELP

   HELP allows you to display the function and format of any
   NCP command.  The format is

   NCP> HELP keyword [additional parameters]

   where keyword  can  be  any  one  of  the  following  NCP
   commands:

   CANCEL   CLEAR    DEFINE   DUMP     ENTER    EXIT     HELP
   LIST     LOAD     LOOP     PURGE    PUSH     RETURN   SET
   SHOW     TAKE     TELL     TRIGGER  ZERO

*LIST

   LIST is used to display information  from  the  permanent
   data base.

*LOAD

   LOAD is used to load the system image file from one  node
   to a remote node in the network

*LOOP

   LOOP is used to request a node level loopback test.   The
   node specified in the command is the node to be connected
   TO;  that is, the node that  will  loop  back  the  data.
   This may be the local node or a remote node.

*PURGE

   PURGE is used to clear parameters of an entity  from  the
   permanent data base.  Additional information available

      PURGE CIRCUIT
      PURGE EXECUTOR NODE
      PURGE LINE
      PURGE LOGGING
      PURGE NODE

*PURGE CIRCUIT

   PURGE CIRCUIT is used  to  clear  the  permanent  circuit
   parameters for the circuit(s) identified in the command.

*PURGE EXECUTOR NODE

   PURGE EXECUTOR NODE is used to reset the executor in  the
   permanent data base to the local node.

*PURGE LINE

   PURGE LINE is used to clear the permanent line parameters
   for the line(s) identified in the command.

*PURGE LOGGING

   PURGE LOGGING is used to control the logging  of  events,
   both  the  events that will be logged and where they will
   be logged.

*PURGE NODE

   PURGE NODE is used to clear the permanent  parameters  of
   the node identified as node-id or set as EXECUTOR.

*PUSH

   PUSH is used to leave the NCP command level and enter the
   TOPS-20  monitor  command level.  The POP command is used
   to return to the NCP command level.

*RETURN

   RETURN is used to return to the OPR command level.

*SET

   SET is used to modify values in the volatile data base of
   the identified entity.  Additional information available

      SET CIRCUIT
      SET LINE
      SET LOGGING
      SET NODE

*SET CIRCUIT

   SET  CIRCUIT  is  used  to  set  the   volatile   circuit
   parameters for the circuit(s) identified in the command.

*SET LINE

   SET LINE is used to set the volatile line parameters  for
   the line(s) identified in the command.

*SET LOGGING

   SET LOGGING is used  to  control  where  the  events  are
   logged (event sinds) and which events get logged.

*SET NODE

   SET NODE is used to set the volatile parameters  for  the
   node identified as node-id or set as EXECUTOR.

*SHOW

   SHOW is used to display  information  from  the  volatile
   data base.

*TAKE

   TAKE is used to execute a series of NCP commands  from  a
   specified command file.

*TELL

   TELL NODE is used as a prefix to designate the node  that
   is  to process the command.  The prefix is effective only
   for  the  single  command   that   immediately   follows.
   Although  the  access  information  is optional, the node
   specified as node-id may refuse to accept the command.

   Using the TELL NODE  prefix  is  more  efficient  than  a
   combination  of  SET EXECUTOR and CLEAR EXECUTOR commands
   when only one command is to be given to a node.

*TRIGGER

   TRIGGER is used to attempt to cause the target node  (the
   node  to  be  loaded)  to  send  a  load  request  to the
   executor.  If the load request is sent successfully,  the
   load proceeds automatically.

*ZERO

   ZERO is used to generate a  counters  zeroed  event  that
   causes  counters to be logged.  The counters are then set
   to zero.  The counters affected are those associated with
   the specified entity.