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Revision/Update Information: This manual supersedes the DECnet/OSI for OpenVMS Introduction and User's Guide.
Operating Systems:
OpenVMS VAX Version 7.1
OpenVMS Alpha Version 7.1
Software Versions: DECnet-Plus for OpenVMS Version 7.1
Digital Equipment Corporation Maynard, Massachusetts
Digital Equipment Corporation makes no representations that the use of its products in the manner described in this publication will not infringe on existing or future patent rights, nor do the descriptions contained in this publication imply the granting of licenses to make, use, or sell equipment or software in accordance with the description.
Possession, use, or copying of the software described in this publication is authorized only pursuant to a valid written license from Digital or an authorized sublicensor.
Digital conducts its business in a manner that conserves the environment and protects the safety and health of its employees, customers, and the community.
© Digital Equipment Corporation 1996. All rights reserved.
The following are trademarks of Digital Equipment Corporation: Bookreader, DDCMP, DEC, DECdirect, DECnet, DECNIS, DECserver, DECsystem, DECwindows, Digital, DNA, InfoServer, OpenVMS, OpenVMS Cluster, PATHWORKS, ULTRIX, VAX, VAX DOCUMENT, VAXcluster, VAXstation, VMS, RSX, and the DIGITAL logo.
The following are third-party trademarks:
Macintosh is a registered trademark of Apple Computer, Inc.
MS-DOS is a registered trademark of Microsoft Corporation.
OS/2 is a registered trademark of International Business Machines
Corporation.
OSF/1 is a registered trademark of Open Software Foundation, Inc.
OSI is a registered trademark of CA Management, Inc.
SCO is a trademark of Santa Cruz Operations, Inc.
UNIX is a registered trademark in the United States and other
countries, licensed exclusively through X/Open Company Ltd.
All other trademarks and registered trademarks are the property of their respective holders.
This book introduces the DECnet-Plus for OpenVMS (formerly DECnet/OSI) product, providing an overview of the product's features and a conceptual overview of DECnet-Plus software. Also described are common end-user tasks such as how to use the remote file, remote login, and mail utilities. A complete glossary of DECnet-Plus terminology is also included.
See your Software Product Description (SPD) for detailed information about new features and product requirements.
This book is written for:
This book has four parts:
DECnet-Plus for OpenVMS documentation is available in three sets:
Table 1 lists the documentation that supports this version of the DECnet-Plus for OpenVMS software.
| Document | Contents |
|---|---|
| Documentation Sets: OpenVMS Alpha and VAX Systems | |
| DECnet-Plus for OpenVMS Introduction and User's Guide | This manual. Describes the manuals in the documentation sets, outlines the DECnet-Plus for OpenVMS features and tools, explains how to use and manage an end system, and provides a comprehensive glossary of DECnet terminology. |
| DECnet-Plus for OpenVMS Release Notes |
Print this text file at the beginning of the installation procedure and
read it before you install DECnet-Plus for OpenVMS. Volume 1 of the
DECnet-Plus for OpenVMS distribution kit contains the Release Notes.
Describes changes to the software; installation, upgrade, and compatibility information; new and existing software problems and restrictions; and software and documentation corrections. |
| DECnet-Plus for OpenVMS Installation and Basic Configuration | Explains how to install and configure the DECnet-Plus for OpenVMS software and how to perform postinstallation tasks. |
| DECnet-Plus for OpenVMS Installation Quick Reference Card | Provides quick-reference information to help you install DECnet-Plus software on an OpenVMS node. Use this card with the DECnet-Plus for OpenVMS Installation and Basic Configuration manual. |
| DECnet-Plus for OpenVMS Applications Installation and Advanced Configuration | Explains how to install X.25 for OpenVMS Alpha, X.25 Access and X.25 Native Mode for OpenVMS VAX (formerly VAX P.S.I. Access and VAX P.S.I.), FTAM, VT, and OSAK software. Includes information about how to configure DECnet-Plus for OpenVMS using the Advanced configuration option and how to modify an existing configuration. |
| DECnet-Plus for OpenVMS Network Management | Provides in-depth information about how to monitor and manage DECnet-Plus for OpenVMS systems using various tools and Network Control Language (NCL) commands. Explains how to set up and use event dispatching and how to perform all day-to-day management tasks for the local DECnet-Plus for OpenVMS node, including setting up OpenVMS clusters, managing security, downline loading, and monitoring the network. |
| DECnet-Plus for OpenVMS Network Management Quick Reference Guide | Provides quick-reference information about the tools that help you manage and monitor a DECnet-Plus network. Use this guide with the DECnet-Plus for OpenVMS Network Management manual. |
| DECnet-Plus Network Control Language Reference | Outlines command descriptions and examples for all Network Control Language (NCL) commands that you execute to manage, monitor, and troubleshoot the network. Begins with an orientation chapter that contains information about how to execute NCL commands, followed by a command chapter for each module in the DECnet Phase V layered model. |
| DECnet-Plus Planning Guide | Provides configuration and planning guidelines, including namespace planning information, to help you transition a network from the DECnet Phase IV to DECnet Phase V architecture. |
| DECnet-Plus Problem Solving | Explains how to isolate and solve DECnet problems in an OpenVMS environment that can occur while the network is in operation. Includes information about how to perform loopback tests and how to use the DTS/DTR utility to solve problems. |
| DECnet-Plus DECdns Management | Explains DECdns concepts and how to manage a DECdns distributed namespace. Use this manual with the DECnet-Plus Planning Guide. |
| DECnet-Plus DECdts Management | Introduces Digital Distributed Time Service (DECdts) concepts and describes how to manage the software and system clocks. |
| DECnet-Plus DECdts Programming | Contains DECdts time routine reference information and describes the time-provider interface (TPI). |
| DECnet-Plus OSAK Programming | Explains how to use the OSAK (OSI Applications Kernel) interface to create OSI (Open Systems Interconnection) applications for any supported operating system. |
| DECnet-Plus OSAK Programming Reference | Provides reference information on using the OSAK interface to create OSI applications on any supported operating system. |
| DECnet-Plus OSAK SPI Programming Reference | Provides reference information about using the OSAK session programming interface (SPI) to create OSI applications on any supported operating system. |
| DECnet-Plus FTAM and Virtual Terminal Use and Management | Explains how to use and manage FTAM (File Transfer, Access, and Management) software for remote file transfer and management and VT (Virtual Terminal) for remote login to OSI-compliant systems. |
| DECnet-Plus FTAM Programming | Explains how to access the FTAM protocol through Digital's FTAM API (application programming interface). |
| DECnet-Plus for OpenVMS Programming | A three-part manual. Contains information about how to design and write an application that follows a client/server model and uses the OpenVMS Interprocess Communication ($IPC) system service and the transparent and nontransparent communication with the queue Input/Output ($QIO) system service. Explains how to write programs using the OpenVMS system services to communicate with OSI transport services. Provides information about the Common Management Information Service (CMISE) API. |
| DECnet/OSI for VMS CTF Use | Explains how use the Common Trace Facility (CTF) troubleshooting tool to collect and analyze protocol data from networking software. |
|
DECnet/OSI for VMS X.25 Management
VAX X.25 Problem Solving VAX P.S.I. Programming VAX P.S.I. Programming Reference VAX WANDD Programming VAX P.S.I. Accounting VAX P.S.I. X.25 Use VAX P.S.I. X.29 Management VAX X.25 Security |
For OpenVMS VAX systems only. Provides X.25 and X.29 information for X.25 Access and X.25 Native Mode (formerly VAX P.S.I. Access and VAX P.S.I.). Provides information about wide area network device driver (WANDD) software. |
| X.25 for OpenVMS Management Guide | For OpenVMS Alpha systems only. Explains how to manage and monitor an X.25 system using network tools. |
| X.25 for OpenVMS Security Guide | For OpenVMS Alpha systems only. Explains the X.25 security model and the tasks required to set up and manage X25 security. |
| X.25 for OpenVMS Problem Solving | For OpenVMS Alpha systems only. Provides guidance on how to solve problems that can occur while using an X.25 system. |
| Supplemental X.25 Documentation Set (OpenVMS Alpha Systems) | |
| X.25 for OpenVMS Accounting | Explains how to use X.25 accounting to obtain performance records and information about how X.25 is being used. |
| X.25 for OpenVMS Configuration | Discusses how to configure X.25 on an OpenVMS Alpha system. |
| X.25 for OpenVMS Programming | Explains how to write X.25 and X.29 programs to perform network operations. |
| X.25 for OpenVMS Programming Reference | Provides reference information for X.25 and X.29 programmers. |
| X.25 for OpenVMS Utilities | Explains how to use and manage X.25 Mail and X.29 communications. |
For additional information on the DECnet-Plus products and services, access the Digital OpenVMS World Wide Web site. Use the following URL:
http://www.openvms.digital.com
Digital welcomes your comments on this manual or any of the DECnet-Plus documents. Send us your comments through any of the following channels:
| Internet | openvmsdoc@zko.mts.dec.com |
| Fax | 603 881-0120, Attention: OSSG Documentation, ZKO3-4/U08 |
|
OSSG Documentation Group, ZKO3-4/U08
110 Spit Brook Rd. Nashua, NH 03062-2698 |
Use the following table to order additional documentation or information. If you need help deciding which documentation best meets your needs, call 800-DIGITAL (800-344-4825).
The following terms are used interchangeably:
The following conventions apply to this book.
| Convention | Meaning |
|---|---|
| special type |
Indicates a literal example of system output or user input. In text,
indicates command names, keywords, node names, file names, directories,
utilities, and tools. On a DECnet-Plus for ULTRIX system, enter the
word or phrase in the exact case shown.
You can abbreviate command keywords to the smallest number of characters that OpenVMS, DEC OSF/1, NCL, DECdns, DECdts, and the other utilities accept, usually three characters. |
| italic | Indicates a variable. |
| text style | Indicates a new term defined either in the text or in the glossary. |
| [Return] | Indicates that you press the return key. |
| [Ctrl/] x | Indicates that you press the control key while you press the key noted by x. |
| [ ] | In command format descriptions, indicates optional elements. You can enter as many as you want. |
| { } | In command format descriptions, indicates you must enter at least one listed element. |
Part I provides an overview of the transition from DECnet Phase IV to DECnet-Plus (Phase V). It also includes an overview of what is included with the DECnet-Plus for OpenVMS base system. This section includes the following chapters:
Digital's DECnet-Plus network is a family of hardware and software products that allows Digital operating systems to communicate with each other and with systems produced by other vendors.
The DECnet-Plus network supports remote system communication, resource sharing, and distributed processing. Network users can access resources on any system in the network as well as the resources of other vendors' systems on multivendor networks.
DECnet-Plus networking software provides true network independence. You get the full functionality of DECnet Phase IV, as well as DECnet enhancements plus full TCP/IP compatibility and OSI functionality.
DECnet-Plus for OpenVMS is Digital's OpenVMS implementation of:
Phase V integrates the DNA and OSI layers. The DNA Phase V reference model is the architectural model on which DECnet-Plus networking implementations are based. DECnet-Plus also includes support for the internet standards RFC 1006 and RFC 1859, which allow you to run OSI and DECnet Phase IV applications over TCP/IP.
Table 1-1 shows the changes that have evolved with each new phase.
| Phase I | Limited to two nodes |
| Phase II | Up to 32 nodes: file transfer, remote file access, task-to-task programming interfaces, network management |
| Phase III | Up to 255 nodes: adaptive routing, downline loading, record access |
| Phase IV | Up to 64,449 nodes: Ethernet local area networks, area routing, host services, OpenVMS Cluster support |
| Phase V | Virtually unlimited number of systems: OSI protocol support, transparent transport level links to TCP/IP, multivendor networking, local or distributed name service, distributed network management |
DECnet-Plus for OpenVMS integrates DECnet and OSI network protocols which provides continued support for DECnet applications and enables support for OSI applications on OpenVMS. With separate TCP/IP software running on the same system, DECnet-Plus supports a multivendor, multiprotocol network environment. DECnet applications can be run over NSP, CLNP, or TCP/IP transports. OSI applications can be run over CLNP or TCP/IP transports.
A full implementation of the Digital Network Architecture (DNA) Phase V for OpenVMS systems, the OSI component of the DECnet-Plus software, is implemented in accordance with the current U.S. and UK GOSIP requirements. GOSIP is the Government OSI Profile that defines OSI capabilities required by government procurement.
Note
Chapter 3 contains more conceptual information on the OSI Reference Model, OSI terminology (protocols, stacks, dialogues, entities, services), and how each specific layer relates to DECnet-Plus for OpenVMS.
A number of automated tools (DECnet migration utilities and the NCP Emulator) and simplified configuration procedures are available to help you migrate to DECnet-Plus.
The complexity of the transition from Phase IV to Phase V architecture varies depending on the complexity of your existing network. In general, the smaller the network, the easier the transition. For larger networks, more planning is required. Nevertheless, whether your network is large or small, you can accomplish the transition without disrupting day-to-day operations.
DECnet-Plus now supports the fast configuration option, which a system or network manager can use to configure DECnet-Plus quickly on an OpenVMS system by invoking the net$configure.com procedure.
With the Fast Configuration option, you can configure a Phase IV system for network connectivity by answering a few questions. This feature is useful when you upgrade a DECnet Phase IV node to a DECnet-Plus node at some time in the future.
For information about how to configure your network using the Fast
Configuration option, see the DECnet-Plus for OpenVMS Installation
and Basic Configuration manual.
1.1.1 Differences Between DECnet Phase IV and DECnet-Plus Phase V
DECnet-Plus is the implementation of the fifth phase of the Digital Network Architecture (DNA). Phase V integrates the Open System Interconnection (OSI) protocols with DECnet protocols. In addition, Phase V includes support for the Internet standard RFC 1006 and the Internet draft RFC 1859, allowing OSI and DECnet applications to run over TCP/IP. Thus, applications that use DECnet-Plus can communicate with peer OSI and DECnet applications on any DECnet Phase IV-based system or OSI-based system, whether from Digital or from other vendors.
The addition of the OSI protocols and the TCP/IP communications capability is, therefore, the primary difference between DECnet Phase IV and DECnet-Plus Phase V. There are, however, other differences. DECnet-Plus contains many features designed to enhance networking capabilities. These new features include:
To fully benefit from these enhancements, you may need to make changes to your network. Prior to upgrading from DECnet Phase IV to DECnet-Plus, you must make certain decisions:
DECnet-Plus for OpenVMS implements standards approved by:
Table 1-2 lists the OSI standards that DECnet-Plus for OpenVMS supports. Note that for LANs at the Data Link and Physical layers, ISO standards are equivalent to IEEE standards.
| Layer | Standard | Description |
|---|---|---|
| ISO 7498 | Basic Reference Model | |
| Application | ISO 8571 | File Transfer, Access and Management (FTAM) |
| ISO 8649 | Service Definition --- Association Control | |
| ISO 8650 | Association Control Service Element (ACSE) | |
| ISO 9041 | Virtual Terminal Protocol | |
| ISO 9072 | Remote Operations Service Element | |
| Presentation | ISO 8822 | Presentation Service |
| ISO 8823 | Presentation (Kernel) | |
| Session | ISO 8326 | Connection-Oriented Network Service (CONS) |
| ISO 8327 | Connection-Oriented Network Service Protocol | |
| ISO 9595 | Common Management Information Service Element (CMISE) | |
| Transport | ISO 8072 | Connection-Oriented Transport Service (COTS) Definition |
| ISO 8073 | Connection-Oriented Transport Service (COTS) Protocol | |
| RFC 1006 | Defines how to implement ISO 8073 Transport Class 0 on top of TCP | |
| RFC 1006 Extension (Internet Draft) | Defines how to implement ISO 8073 Transport Class 2 non-use of Explicit Flow Control on top of TCP | |
| Network | ISO 7498 Addendum 1 | Connectionless-Mode Transmission |
| ISO 8208 | X.25 Packet Level Protocol (PLP) | |
| ISO 8348 | Service definition: Connection-Oriented Network Service (CONS) | |
| ISO 8348 Addendum 2 | OSI addressing formats | |
| ISO 8473, 8348 Addendum 1 | Connectionless-Mode Network Service (CLNS) | |
| ISO 8878 | X.25/Connection-Oriented Network Service (CONS) | |
| ISO 8881 | X.25 Packet Level Protocol in local area networks | |
| ISO 9542 | End-system to intermediate-system routing exchange protocol | |
| Data Link | ISO 3309, 4335, 7809, 8471, 8885 | Point-to-point data links (HDLC) |
| ISO 7776 | Point-to-point X.25 data links (only with an X.25 license; LAPB, one possible user) | |
| ISO 8802-1 (IEEE 802.1)¹ | Ethernet support (CSMA-CD) | |
| ISO 8802-2 (IEEE 802.2) | Frame formats for 8802-3 LANs (CSMA-CD logical link control (LLC1)) | |
|
X.25 logical link control (LLC2)
(one possible user) |
||
| ISO 8802-3 (CSMA/CD) | LAN support (CSMA-CD) | |
| ISO 9314 | Fiber Distributed Data Interface (FDDI) | |
| Physical | ISO 8802-3 (IEEE 802.3) | CSMA-CD devices |
| ISO 9314 | Fiber Distributed Data Interface (FDDI) | |
| EIA RS-232-C | HDLC point-to-point devices | |
| EIA RS-422 | HDLC point-to-point devices | |
| EIA RS-423 | HDLC point-to-point devices | |
| CCITT V.35 | HDLC point-to-point devices | |
The DECnet-Plus for OpenVMS software has several related dependencies
outlined in the following sections.
1.3.1 DECnet Licenses
To use DECnet-Plus for OpenVMS or DECnet Phase IV software, you need the appropriate software licenses. Table 1-3 lists the two basic licenses and three license keys for OpenVMS VAX and Alpha systems, for DECnet Phase IV and DECnet-Plus, respectively.
| VAX Phase IV | VAX DECnet-Plus | Alpha Phase IV | Alpha DECnet-Plus |
|---|---|---|---|
| End System License | |||
| DVNETEND | DVNETEND | DVNETEND | DVNETEND |
| All DECnet Phase IV functionality except cluster alias and routing | All DECnet Phase IV functionality except cluster alias, OSI API¹, OSI application gateways, DECdns server, and routing | All DECnet Phase IV functionality except cluster alias | All DECnet-Plus functionality except cluster alias, OSI API¹, OSI application gateways, and routing |
| Extended Function License | |||
| DVNETRTG | DVNETRTG | DVNETEXT | DVNETEXT |
| All DECnet Phase IV functionality including cluster alias² and routing | All DECnet-Plus functionality including cluster alias², OSI API, OSI application gateways, DECdns server, and host-based routing³ | All DECnet Phase IV functionality including cluster alias² but excluding routing 4 | All DECnet-Plus functionality including cluster alias², OSI API, OSI application gateways, and host-based routing³ |
For mapping between node names and node addresses, you need at least one of the following three name services:
INTRO_PROFILE.HTML OSSG Documentation 2-DEC-1996 12:54:16.01
Copyright © Digital Equipment Corporation 1996. All Rights Reserved.