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Document:	VMS 5.0 DECnet Test Sender Receiver Utility Manual 198804
Order Number:	AA-LA49A-TE
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Pages:	33
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VMS DECnet Test
Sender/DEC net Test
Receiver Utility Manual
Order Number: AA-LA49A-TE

April 1988
This document provides information for VMS users who want to test
network task-to-task operations.

Revision/Update Information:

This document supersedes
the VAX/VMS DECnet Test
Sender/DECnet Test Receiver Utility
Reference Manual, Version 4.0.

Software Version:

VMS Version 5.0

digital equipment corporation
maynard, massachusetts

April 1988
The information in this document is subject to change without notice and should
not be construed as a commitment by Digital Equipment Corporation. Digital
Equipment Corporation assumes no responsibility for any errors that may appear
in this document.
The software described in this document is furnished under a license and may be
used or copied only in accordance with the terms of such license.
No responsibility is assumed for the use or reliability of software on equipment
that is not supplied by Digital Equipment Corporation or its affiliated companies.
Copyright © 1988 by Digital Equipment Corporation
All Rights Reserved.
Printed in U.S.A.
The postpaid READER'S COMMENTS form on the last page of this document
requests the user's critical evaluation to assist in preparing future documentation.
The following are trademarks of Digital Equipment Corporation:
DEC
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DEC/MMS
DECnet
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PDP
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RSX

UNIBUS
VAX
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VT

~urnuo~u TM
ZK4539

HOW TO ORDER ADDITIONAL DOCUMENTATION
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*Any prepaid order from Puerto Rico must be placed with the local Digital subsidiary (809-754-7575).
Internal orders should be placed through the Software Distribution Center (SOC), Digital Equipment
Corporation, Westminster, Massachusetts 01473.

Production Note
This book was produced with the VAX DOCUMENT electronic publishing
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writers use an ASCII text editor to create source files containing text and
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which runs on the VMS operating system, interprets the code to format the
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Writers can print the document on the terminal or line printer, or they can use
DIGITAL-supported devices, such as the LN03 laser printer and PostScript®
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copy containing integrated graphics.

PostScript is a trademark of Adobe Systems, Inc.

Contents
PREFACE

vii

NEW AND CHANGED FEATURES

DTS/DTR Description

DTS-1

OPERATIONAL CHARACTERISTICS

DTS-1

DTS COMMAND SYNTAX

DTS-1

DTS/DTR Usage Summary

DTS-3

DTS Commands

DTS-4
CONNECT
DATA
DISCONNECT
INTERRUPT

DTS-5
DTS-7
DTS-10 ·
DTS-12

INDEX

Preface
This reference manual presents the commands that make up the DECnet Test
Sender/DECnet Test Receiver (DTS/DTR) Utility.

Intended Audience
The VMS DECnet Test Sender /DECnet Test Receiver Utility Manual is intended
as a reference to the formats and syntax of the DTS commands for those
already familiar with DECnet-VAX. System managers can use DTS to run
connection, disconnection, data, and interrupt tests to check the software
involved in task-to-task communication over the network.

Document Structure
This document consists of the following three sections:
•

Description-Provides a full description of the DTS/DTR Utility,
including the following topics:
-Operational characteristics
-Command syntax

•

Usage Summary-Outlines the following DTS/DTR information:
-Invoking the utility
-Exiting from the utility
-Printing test results

•

Commands-Describes DTS commands, including format, parameters,
qualifiers, and examples.

Associated Documents
Before using the DTS/DTR Utility, you should be familiar with the
networking concepts presented in the VMS Networking Manual.
For information concerning VAX PSI, refer to the following manuals, which
make up the VAX PSI documentation set:

•

VAX P.S.I. Introduction

•

VAX P.S.I. Installation Procedures

•

VAX P.S.I. X.25 Programmer's Guide

•

VAX P.S.I. X.29 Programmer's Guide

•

VAX P.S.I. Management Guide

•

VAX P.S.I. PAD and Mail Utilities Manual

•

VAX P.S.I. Problem Solving Guide

•

Public Network Information

vii

Preface

The following functional specifications define DIGITAL Network Architecture
(DNA) protocols to which all implementations of DECnet adhere:

•

DECnet DIGITAL Network Architecture General Description

•

DIGITAL Data Communications Message Protocol Functional Specification

•

Network Services Protocol Functional Specification

•

Maintenance Operation Protocol Functional Specification

•

Data Access Protocol Functional Specification

•

Routing Layer Functional Specification

•

DNA Session Control Functional Specification

•

DNA Phase IV Network Management Functional Specification

•

Ethernet Node Product Architecture Specification

•

Ethernet Data Link Functional Specification

Conventions
Convention

Meaning
In examples, a key name (usually abbreviated)
shown within a box indicates that you press
a key on the keyboard; in text, a key name is
not enclosed in a box. In this example, the key
is the RETURN key. (Note that the RETURN
key is not usually shown in syntax statements
or in all examples; however, assume that you
must press the RETURN key after entering a
command or responding to a prompt.)

viii

CTRL/C

A key combination, shown in uppercase with a
slash separating two key names, indicates that
you hold down the first key while you press the
second key. For example, the key combination
CTRL/C indicates that you hold down the key
labeled CTRL while you press the key labeled C.
In examples, a key combination is enclosed in a
box.

$SHOW T!ME
05-JUN-1988 11 :55:22

In examples, system output (what the system
displays) is shown in black. User input (what
you enter) is shown in red.

$ TYPE MYFILE.DAT

In examples, a vertical series of periods, or
ellipsis, means either that not all the data that
the system would display in response to a
command is shown or that not all the data a
user would enter is shown.

Preface

Convention

Meaning

input-file, ...

In examples, a horizontal ellipsis indicates
that additional parameters, values, or other
information can be entered, that preceding
items can be repeated one or more times, or
that optional arguments in a statement have
been omitted.

[logical-name]

Brackets indicate that the enclosed item is
optional. (Brackets are not, however, optional
in the syntax of a directory name in a file
specification or in the syntax of a substring
specification in an assignment statement.)

quotation marks
apostrophes

The term quotation marks is used to refer
to double quotation marks (" ). The term
apostrophe (') is used to refer to a single
quotation mark.

New and Changed Features
This version of the VMS DECnet Test Sender /DECnet Test Receiver Utility
Manual contains no new technical information.

DTS/DTR Description
This section describes the operational characteristics of the DECnet Test
Sender/DECnet Test Receiver (DTS/DTR) Utility and the command syntax
for DTS.

Operational Characteristics
DTS and DTR are cooperating tasks that perform various functions to exercise
network software. DTR functions as a slave to DTS. DTS initiates each test
by issuing a connection request to DTR. DTS passes parameters pertinent
to the type of test request to DTR in the optional data of the connection
request. The user interface to DTS consists of a group of commands. These
commands enable you to select the type of test and subtest and to specify
options relative to the operation of the test. These options include parameters
to regulate the duration of the test, the type of information to be used for the
test, and buffer-level control.
The DTS command syntax allows for two types of buffer-level option:
SQUEUE and RQUEUE. SQUEUE affects the operation of DTS, whereas
RQUEUE affects the operation of DTR. The SQUEUE parameter specifies the
transmission buffer level for DTS. This level is the number of transmission
requests that DTS attempts to keep outstanding to the network during the
data test. For an echo test, the SQUEUE parameter also specifies the DTS
buffer level for receiving data. The RQUEUE parameter specifies the
DTR buffer level for receiving data during the data test.
Note that the VMS DECnet Test Receiver (DTRECV) image cannot
perform multiple buffering. In addition, it does not support any negative
acknowledgment (NAK) or BACK options nor flow control other than
segment. The VMS DECnet Test Sender (DTSEND) image does not support
multiple buffering either.

DTS Command Syntax
This section describes the DTS command syntax for all tests. Each command
consists of a command keyword, optional general command qualifiers, each
preceded by a slash ( /) character, and optional command-specific qualifiers,
each preceded by a slash character. You may abbreviate command keywords
and qualifiers to four characters or less (if unique).
Note that, when using DTS commands in a batch job, you must use uppercase
characters in the command.

DTS-1

DTS/DTR Description

The general DIS command syntax and the definition of each command
component is as follows.
command-keyword/general-qualifier, ... /command-specific-qualifier, ...
command-keyword

Specifies the general test to be performed.
CONNECT
Indicates a connect test
DISCONNECT

Indicates a disconnect test

DAT A

Indicates a data test

INTERRUPT

Indicates an interrupt test

general-qualifier

Specifies one or more general test
characteristics regardless of the test to be
performed. These qualifiers and their default
values are described in each command
(CONNECT, DATA, DISCONNECT, and
INTERRUPT) where they apply.

command-specific-qualifier

Specifies one or more test-specific qualifiers
that regulate the operation of the test.

The general command syntax adheres to the DCL rules for comments and
continuation lines, as shown in the following example:
$ RUN SYS$SYSTEM:DTSEND
_TEST:
DATA/PRINT/TYPE=SEQ

_TEST:

INTERRUPT/NODENAME=DALLAS _/PRINT/TYPE=PAT
!Perform Interrupt Test

_TEST:

EXIT

DTS-2

!Perform Data Test

DTS/DTR Usage Summary
DECnet Test Sender (DTS) and DECnet Test Receiver (DTR) are the DECnet
transmitter and receiver test programs that exercise network task-to-task
capabilities. DTSEND and DTRECV are the DECnet-VAX implementations
of these programs. The images and command files to use DTSEND and
DTRECV are included with the DECnet-VAX software.
There are four basic network tests provided by DTS and DTR:
•

Connection tests

•

Data tests

•

Disconnection tests

•

Interrupt tests

Each test is composed of a set of subtests. See the following sections for
a description of each test and its subtests.

FORMAT

$RUN SYS$SYSTEM:DTSEND

COMMAND
PARAMETERS

None.

usage summary

Before invoking DTS, be sure that the necessary line (if any) is in the ON
state. To invoke DTS, type RUN SYS$SYSTEM:DTSEND in response to the
DCL prompt.
DTS returns with the following information and prompt:
DTS Version xxx initiated on dd-mmm-yy hh:mm:ss
_Test:

DTS accepts input entered interactively at the terminal. DTS also accepts a
command procedure as input.
To exit DTS and thereby terminate the test, enter EXIT at the _Test: prompt.
For example:
_Test:

EXIT

DTS terminated on dd-mmm-yy hh:mm:ss
$

Use the /PRINT qualifier to print test results. Also, you can use the
/STATISTICS and /DISPLAY qualifiers to print statistics and messages
transmitted to DTR, respectively. The /STATISTICS and /DISPLAY qualifiers
apply only to the data and interrupt tests. See the individual commands for
more information.

DTS-3

DTS
DTS Commands

DTS
COMMANDS

This section explains how to use the four DTS tests. Examples are provided
for each test.
DTS Commands

CONNECT
DATA
DISCONNECT
INTERRUPT

DTS-4

DTS
CONNECT

CONNECT
Invokes a connection test.

FORMAT

CONNECT {/general-qualifier{, ... ]
/command-specific-qualifier[, ... ]]

GENERAL
QUALIFIERS

/NODENAME=node-id
Identifies the node (by name or address) on which DTR is to run. The default
is the local node. Because you cannot use access control information as part
of the node name, DTR runs on the default nonprivileged account on the
remote node.

/PRINT
/NOPRINT
Instructs DTS to print (or log) test results. The default is /NOPRINT.

/SPEED=number
Indicates the line speed (bits per second) of the test line. DTS uses this
qualifier for reporting statistics. (DECnet does not control line speeds.) The
default is /SPEED=lOOOOOO.
Once selected, these qualifiers remain active until you explicitly change them
or exit DTS.

COMMANDSPECIFIC
QUALIFIERS

/TYPE=test-type
Indicates the subtest for the connection test. There are two subtests:
ACCEPT

Indicates a connect accept test. The default is /TYPE=ACCEPT.

REJECT

Indicates a connect reject test.

/RETURN=return-option
/NORETURN
Indicates the type of optional user data DTR returns. The default is
/NORETURN where DTR returns no optional user data. There are two
possibilities:
STANDARD

Indicates standard user data.

RECEIVED

Indicates received user data.

DTS-5

DTS
CONNECT

DESCRIPTION

Connection tests evaluate the ability of the network software to process
connect, connect accept, and connect reject requests with and without
optional user data. Connection tests that you may perform include the
following:
•

Connect reject without user data

•

Connect accept without user data

•

Connect reject with 16 bytes of standard user data

•

Connect accept with 16 bytes of standard user data

•

Connect reject with received user data used as reject user data

•

Connect accept with received user data used as accept user data

EXAMPLES
ii

_Test:

CONNECT/TYPE=ACCEPT/RETURN=RECEIVED

This command invokes the connection test with the connect accept subtest.
DTS attempts to connect to DTR on the local node (by default). Connect user
data is to be returned as part of the test.

_Test:

CONNECT/NODENAME=TRNTO

This command invokes the connection test with the connect accept subtest.
DTS attempts to connect to DTR on remote node TRNTO. DTR returns no
optional user data.

DTS-6

DTS
DATA

DATA
Invokes a data test.

FORMAT

DATA

[/general-qualifier[, .. .}
/command-specific-qualifier[, ... ]}

GENERAL
QUALIFIERS

/PRINT
/NOPRINT
Instructs DTS to print (or log) test results. The default is /NOPRINT.

/STATISTICS
/NOSTATISTICS
Instructs DTS to print statistics on data and interrupt tests. The default is
/STATISTICS.

/DISPLAY=number
/NOD/SPLAY
Instructs DTS to print the specified number of bytes (in hexadecimal) of data
and interrupt messages transmitted to DTR. The default is /NODISPLAY.

COMMANDSPECIFIC
QUALIFIERS

/TYPE=test-type
Indicates the subtest for the data test. There are four subtests:
SINK

Indicates a sink test. The default is /TYPE=SINK.

SEQ

Indicates a sequence test.

PAT

Indicates a pattern test.

ECHO

Indicates an echo test.

DTS-7

DTS
DATA

/SIZE=number
Indicates the data message length in bytes. The lower bounds are 0 for a sink
or echo test; 4 for a sequence test; and 5 for a pattern test. The upper bound
is 4096 bytes for all tests. The default is /SIZE=128.

/[test-duration]
Indicates the duration of the test. There are three units of time for this
parameter:
/SECONDS=number
/MINUTES=number
/HOURS=number
The number specifies the duration of the test. The default unit is
/SECONDS=30. The maximum test duration is 3,600,000 seconds or 1000
hours.

/FLOW=f/ow-control
/NOFLOW
Indicates the flow control type-that is, the DTR buffering level. There are
two types:
SEGMENT

Indicates segment flow control.

MESSAGE

Indicates message flow control.

With /NOFLOW, DTR uses no flow control. The default is
/FLOW=MESSAGE.

/RQUEUE=number
Indicates the number of pending receives for DTR to maintain. The maximum
number is 8. The default is /RQUEUE=l.

/SQUEUE=number
Indicates the number of pending transmissions for DTS to maintain. The
default is /SQUEUE=l.

/NAK=number
/NONAK
Indicates the number of segments between NAKs. The default is /NONAK.

/BACK=number
/NOBACK
Indicates the number of segments before back pressuring. The default is
/NO BACK.

DTS-8

DTS
DATA

DESCRIPTION

Data tests provide a full spectrum of test capabilities, ranging from data
sink operations to data integrity checking. Data tests that you may perform
include the following:
•

Sink Test. DTR ignores all data received during this test. DTR performs
neither sequence nor content validation.

•

Sequence Test. Data messages transmitted by DTS to DTR include a
4-byte sequence number. During the sequence test, if a message is
received out of sequence, DTR aborts the logical link and the test.

•

Pattern Test. Data messages transmitted to DTR have both a sequence
number and a standard data pattern. During the pattern test, if either the
sequence number or the received data does not match the expected data,
DTR aborts the logical link and the test.

•

Echo Test. DTR transmits all data messages received back to DTS during
this test. Neither DTS nor DTR performs sequence or data validity
checking.

EXAMPLE
_Test:

DATA/PRINT/TYPE=SEQ/SIZE=128/SECONDS=10/FLOW=MESSAGE
_DTS-S-NORMAL, normal successful completion
Test parameters:
Test duration (sec) 10
Target nodename
""
Line speed (baud) 1000000
Message size (bytes) 128
Summary statistics:
Total messages XMIT 788
RECV
Total bytes XMIT 100864
Messages per second 78.8
Bytes per second 10086
Line throughput (baud) 80691
_ Line utilization 8.0

This command invokes the data test with the sequence subtest. DTS sends
messages to DTR on the local node where test information is to be printed.
The message size is 128 bytes, and the duration of the test is 10 seconds.
DTR uses message flow control.

DTS-9

DTS
DISCONNECT

DISCONNECT
Invokes a disconnection test.

FORMAT

DISCONNECT [/general-qualifier[, ... }
/command-specific-qualifier[, ... ]]

GENERAL
QUALIFIERS

/PRINT
/NOPRINT
Instructs DTS to print (or log) test results. The default is /NOPRINT.

/SPEED=number
Indicates the line speed (bits per second) of the test line. DTS uses this
qualifier for reporting statistics. (DECnet does not control line speeds.) The
default is /SPEED=l 000000.
Once selected, these qualifiers remain active until you explicitly change them
or exit DTS.

COMMANDSPECIFIC
QUALIFIERS

/TYPE=test-type
Indicates the subtest for the disconnection test. There are two subtests:

SYNCHRONOUS
ABORT

Indicates a synchronous disconnect test.
Indicates a disconnect abort test. The default is

/TYPE=ABORT.

/RETURN=return-option
/NORETURN
Indicates the type of optional user data DTR returns. There are two
possibilities:

STANDARD
RECEIVED

Indicates standard user data.
Indicates received user data.

The default is /NORETURN where DTR returns no optional user data.

DTS-10

DTS
DISCONNECT

DESCRIPTION

Disconnection tests evaluate whether DTS detects the difference between
disconnection and abort sequences generated by DTR as well as the ability
of DTS to receive the proper optional user data. Disconnection tests that you
can perform include the following:
•

Disconnect without user data

•

Abort without user data

•

Disconnect with 16 bytes of standard user data

•

Abort with 16 bytes of standard user data

•

Disconnect with received connect user data used as disconnect user data

•

Abort with received connect user data used as abort user data

EXAMPLE
_Test:

DISCONNECT/NODENAME=DENVER/TYPE=ABORT

This command invokes the disconnection test with the disconnect abort
subtest. DTS performs this test with DTR on remote node DENVER. No
optional user data is to be returned.

DTS-11

DTS
INTERRUPT

INTERRUPT
Invokes an interrupt test.

FORMAT

INTERRUPT [/general-qualifier{, ... ]
/command-specific-qualifier{, ... ]]

GENERAL
QUALIFIERS

/PRINT
/NO PRINT
Instructs DTS to print (or log) test results. The default is /NOPRINT.

/STATISTICS
/NOSTATISTICS
Instructs DTS to print statistics on data and interrupt tests. The default is
/STATISTICS.

/DISPLAY
/NOD/SPLAY
Instructs DTS to print the data and interrupt messages transmitted to DTR.
The default is /NODISPLAY.

COMMANDSPECIFIC
QUALIFIERS

DTS-12

/TYPE=test-type
Indicates the subtest for the interrupt test. There are four subtests:
SINK

Indicates a sink test. The default is /TYPE=SINK.

SEQ

Indicates a sequence test.

PAT

Indicates a pattern test.

ECHO

Indicates an echo test.

DTS
INTERRUPT

/SIZE=number
Indicates the data message length in bytes. The lower bounds are 0 for a sink
or echo test; 4 for a sequence test; and 5 for a pattern test. The upper bound
is 16 bytes for all tests. The default is /SIZE=16.

RQUEUE=number
Indicates the number of pending receives for DTR to maintain. The maximum
number is 8. The default is /RQUEUE=l.

SQUEUE=number
Indicates the number of pending transmissions for DTS to maintain. The
default is /SQUEUE=l.

DESCRIPTION

As with data tests, interrupt tests provide a full range of test capabilities from
data sink operations to data integrity checking. Interrupt tests that you can
perform include the following:
•

Sink Test. DTR ignores all interrupt data received during this test. DTR
performs neither sequence nor content validation.

•

Sequence Test. Interrupt messages transmitted by DTS to DTR include
a 4-byte sequence number. During the sequence test, if a message is
received out of sequence, DTR aborts the logical link and the test.

•

Pattern Test. Interrupt messages transmitted to DTR have both a
sequence number and a standard data pattern. During the pattern test,
if either the sequence number or the received data does not match the
expected data, DTR aborts the logical link and the test.

•

Echo Test. DTR transmits all interrupt messages received back to DTS
during this test. Neither DTS nor DTR performs sequence or data validity
checking.

DTS-13

DTS
INTERRUPT

EXAMPLE
Test:

INTERRUPT/NODENAME=DALLAS/PRINT/TYPE=PAT/SIZE=16
_DTS-S-NORMAL, normal successful completion
Test parameters:
Test duration (sec) 30
Target nodename
"DALLAS"
Line speed (baud) 1000000
Message size (bytes) 16
Summary statistics:
Total messages XMIT 2734 RECV 0
Total bytes XMIT 43744
Messages per second 91.1
Bytes per second 1458
Line throughput (baud) 11665
Line utilization 1.1

This command invokes the interrupt test with the pattern subtest. DTS sends
interrupt messages to DTR on node DALLAS where test information is to be
printed. The interrupt message size is 16 bytes, and the duration of the test is
30 seconds (by default).

DTS-14

Index
DTS test (cont'd.)

B
Back pressuring • DTS-8

c
Command
abbreviating• DTS-1
qualifiers• DTS-1
syntax • DTS-1
using in a batch job• DTS-1
CONNECT command• DTS-5
Connection test • DTS-5
invoking• DTS-5
types of• DTS-5

data test• DTS-7
disconnection test• DTS-10
interrupt test• DTS-12
subtests • DTS-3
terminating• DTS-3
using • DTS-4
Duration test• DTS-8, DTS-13

E
Echo test• DTS-9, DTS-13

F
Flow control
type of• DTS-8

D
DAT A command• DTS-7
Data integrity checking• DTS-8
Data message length• DTS-7, DTS-12
Data test• DTS-7
DECnet Test Receiver
See DTR
DECnet Test Sender
See DTS
DISCONNECT command• DTS-10
Disconnection test• DTS-10
types of• DTS-10
DTR (DECnet Test Receiver)• DTS-1, DTS-3
DTRECV (DECnet Test Receiver image)• DTS-1
DTS (DECnet Test Sender)• DTS-1, DTS-3
DTS/DTR Utility
commands• DTS-4 to DTS-14
directing output• DTS-3
exiting • DTS-3
invoking• DTS-3
operational characteristics• DTS-1
user interface • DTS-1
DTSEND (DECnet Test Sender image) • DTS-1
DTS test
connection test• DTS-5

I
INTERRUPT command• DTS-12
Interrupt test• DTS-12
types of• DTS-13

L
Line speed
setting• DTS-5, DTS-7, DTS-10, DTS-12

M
Multiple buffering• DTS-1

lndex-1

Index

Node
address•DTS-10,DTS-12
name•DTS-10,DTS-12
remote• DTS-10
Nonprivileged account• DTS-10

RQUEUE•DTS-1

0
Option
buffer-level• DTS-1
Optional user data • DTS-5, DTS-10

p
Pattern test• DTS-9, DTS-13
Printing test results• DTS-5, DTS-7, DTS-10,
DTS-12

lndex-2

s
Sequence test• DTS-9, DTS-13
Sink test• DTS-9, DTS-13
SQUEUE•DTS-1
Statistics
printing• DTS-7, DTS-12
reporting• DTS-5, DTS-7

T
Test
See DTS test

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VMS DECnet Test
Sender/DECnet Test
Receiver Utility Manual
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NASHUA, NH 03062-9987

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DIGIT AL EQUIPMENT CORPORATION
Corporate User Publications-Spit Brook
ZK01-3/J35 110 SPIT BROOK ROAD
NASHUA, NH 03062-9987

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