Decnet-Plus Planning Guide
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DECnet-Plus Planning Guide Part Number: AA-QBTHE-TE November 1996 This manual provides an overview of the transition and planning tasks necessary to move from DECnet for OpenVMS (Phase IV) to DECnet- Plus for OpenVMS (Phase V) and DECnet/OSI for Digital UNIX. Revision/Update Information: This manual supersedes the DECnet/OSI Planning Guide. Operating Systems: OpenVMS VAX Version 7.1 OpenVMS Alpha Version 7.1 Digital UNIX Version 4.0 Software Versions: DECnet-Plus for OpenVMS Version 7.1 DECnet/OSI for Digital UNIX Version 4.0 Digital Equipment Corporation Maynard, Massachusetts November 1996 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, VMScluster, and the DIGITAL logo. The following are third-party trademarks: Macintosh is a registered trademark of Apple Computer, Inc. Microsoft, MS, and MS–DOS are registered trademarks of Microsoft Corporation. MS–DOS is a registered trademark of Microsoft Corporation. Motif, OSF, OSF/1, OSF/Motif, and Open Software Foundation are registered trademarks of the Open Software Foundation, Inc. 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. TCPware is a registered trademark of Process Software Corporation. 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. Contents Preface ............................................................ ix 1 Preplanning: Understanding the Transition Process 1.1 Transition Defined . ........................................ 1–1 1.1.1 Why Make the Transition to DECnet-Plus? ..................... 1–2 1.1.2 How Long Does Transition Take? ............................ 1–3 1.1.3 What Is the Transition Environment? . ....................... 1–3 1.1.4 When Do DECnet-Plus Features Become Available? ............. 1–3 1.1.5 When Does Transition End? ................................ 1–4 1.2 Transition Features . ........................................ 1–4 1.3 Addressing ................................................ 1–5 1.3.1 Phase IV Addressing and OSI Addressing: A Comparison . ....... 1–6 1.3.2 Advantages of Using OSI Addresses That Are Also Phase IV Compatible ............................................. 1–8 1.3.3 Advantages of Using Extended Addressing ..................... 1–8 1.3.4 Advantages of Using Multihoming ........................... 1–9 1.3.5 Autoconfiguration of Addresses .............................. 1–9 1.4 Routing . ................................................ 1–9 1.4.1 Interdomain Routing ...................................... 1–10 1.4.2 Level 2 Routing Between Phase IV and Phase V Areas ............ 1–10 1.4.3 Multivendor Routers ...................................... 1–10 1.5 Name Services and Time Service Considerations .................... 1–11 1.5.1 The Local Namespace ..................................... 1–11 1.5.2 The Name Service Search Path .............................. 1–11 1.5.3 Name Service and Time Service Interdependencies ............... 1–12 1.5.4 Mapping Node Names to Addresses . ....................... 1–12 1.6 OpenVMS Cluster Systems (OpenVMS Only) ...................... 1–13 1.7 DECnet Phase IV Applications . ................................ 1–13 1.7.1 DECnet for OpenVMS Phase IV Applications (OpenVMS Only) ..... 1–13 1.7.2 DECnet–ULTRIX Phase IV Applications (Digital UNIX Only) ....... 1–14 1.8 Network Management ........................................ 1–14 1.8.1 Managing a Mixture of Phase V and Phase IV Nodes ............. 1–14 1.8.2 Network Management Protocols and Constraints . ............... 1–14 1.8.2.1 Phase IV Protocols in User Applications (OpenVMS Only) ...... 1–14 1.8.3 Managing Multivendor OSI-Compliant Systems . ............... 1–15 1.9 Noncompatibility with Pre-Phase IV Systems ...................... 1–15 1.10 Products That Do Not Migrate to DECnet Phase V . ............... 1–15 iii 2 Planning the Transition 2.1 Step 1: Document the Current Network Configuration ............... 2–3 2.2 Step 2: Determine Your Transition Strategy ....................... 2–3 2.2.1 If the Network Is Not Moving Entirely to the DECnet-Plus Environment ............................................ 2–4 2.2.2 If the Network Is Moving Entirely to the DECnet-Plus Environment ....................................................... 2–4 2.3 Step 3: Develop a New Network Configuration ..................... 2–5 2.3.1 Planning the New Network Configuration ...................... 2–5 2.3.1.1 Single Extended-Area LANs ............................. 2–6 2.3.1.2 End-System-Only LAN Configurations ...................... 2–6 2.3.1.3 Multicircuit End-System Configurations .................... 2–7 2.3.2 Including Multivendor Systems in the Network . ............... 2–10 2.3.3 Using the Inactive Network Layer Protocol .................... 2–11 2.3.4 Planning Addressing ...................................... 2–12 2.3.4.1 Do You Need a Unique IDP for Your Network? ............... 2–12 2.3.4.2 Do You Need Extended OSI Addresses? ..................... 2–12 2.3.4.3 Considerations for a Network with DECnet Phase V Areas ...... 2–13 2.3.5 Planning Routing . ........................................ 2–14 2.4 Step 4: Plan for Your Name Services and the DECdts Time Service ..... 2–15 2.4.1 Choosing DECdns and DECdts Servers ....................... 2–15 2.4.2 Creating Multiple Namespaces .............................. 2–16 2.4.3 Preparing a DNS Version 1 Namespace for Use By DECnet-Plus .... 2–17 2.5 Step 5: Choose the First End System to Migrate ................... 2–18 3 Performing Transition Tasks 3.1 Tools: Network Management, Node-Name Management, and Transition .......................................................... 3–1 3.2 Immediate Tasks ............................................ 3–2 3.2.1 IDP Planning . ........................................ 3–3 3.2.2 Using a Local Namespace: Migrating the Network ............... 3–3 3.2.3 Using a Distributed Namespace: Migrating the First End Node .... 3–4 3.2.3.1 If the Network Does Not Have a Namespace . ............... 3–4 3.2.3.2 If the Network Has a DNS Version 1 Namespace ............. 3–6 3.2.4 Using a Distributed Namespace: Migrating Subsequent End Nodes ....................................................... 3–6 3.2.4.1 Registering a New System ............................... 3–7 3.2.4.2 Registering a System You Migrated from Phase IV to DECnet-Plus . ........................................ 3–8 3.2.4.3 Registering a System You Changed from DECnet-Plus to Phase IV.................................................. 3–9 3.2.5 Migrating OpenVMS Cluster Nodes (OpenVMS Only) ............. 3–9 3.2.6 Migrating Local Area Networks ............................. 3–9 3.2.7 Configuring a DECnet-Plus End System in a Multivendor OSI Network ............................................... 3–14 3.3 Additional Tasks ............................................ 3–15 3.3.1 Converting the Phase IV Object Database with the OBJTONCL Utility (Digital UNIX Only) . ................................ 3–16 3.3.2 Converting the Phase IV Proxy File (Digital UNIX Only) . ....... 3–17 3.3.3 Converting the MOP Database (Digital UNIX Only) .............. 3–17 3.3.4 Becoming Familiar with NCL Commands, Network Management Modules, and Network Management Tasks ..................... 3–18 3.4 Optional Tasks ............................................. 3–20 iv 3.4.1 Adjusting Buffer Sizes During Transition ...................... 3–20 3.4.2 Changing the Network’s IDP and preDSP ...................... 3–21 4 Creating NSAP Addresses 4.1 IDP Values ................................................ 4–2 4.2 DSP Values ................................................ 4–3 4.3 NSAP Entry and Display Formats ............................... 4–4 4.4 Converting Phase IV Addresses to NSAPs . ....................... 4–5 4.5 Converting NSAPs to Phase IV Addresses . ....................... 4–6 4.6 Forms of the NSAP Displayed by NCL ........................... 4–7 4.7 How to Obtain a Unique IDP and PreDSP . ....................... 4–9 4.7.1 For a Private Network (AFI 49) ............................. 4–9 4.7.2 Allocation Authority for Single-Country Organizations (AFI 39) ..... 4–9 4.7.3 Allocation Authority for International Organizations (AFI 47) ...... 4–9 4.7.4 Using an X.25 Data Network Address for the IDI (AFIs 37 and 53) ......................................................