Policy-Based Network Management: Solutions for the Next Generation
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Table of contents
- Cover
- Copyright Pageiv
- Contentsv
- Chapter 1. The Foundation of Policy Management1
- 1.1 Introduction„A Retrospective2
- 1.2 Where We Are Today7
- 1.3 Definition of Policy Management10
- 1.4 Introduction and Motivation for Policy Management12
- 1.5 The Need for a New Shared Information Model24
- 1.6 The Benefits of PBNM31
- 1.7 Summary36
- 1.8 Recommended Further Readings and References37
- Chapter 2. Policy Management Fundamentals39
- 2.1 Introduction40
- 2.2 The Need for Object-Oriented Analysis, Design, and Modeling in PBNM Systems40
- 2.3 Conceptual Policy Model53
- 2.4 Definition of a PBM System56
- 2.5 Policy Terminology„An Approach58
- 2.6 Essential Terminology for PBM Systems59
- 2.7 New Terminology Not Covered in RFC319878
- 2.8 Definition of Policy-Based Management81
- 2.9 Definition of Policy-Based Network Management81
- 2.10 High-Level Requirements of a PBNM System81
- 2.11 Using Modeling Used to Solve Information Overload84
- 2.12 Policy Used to Express Business Requirements91
- 2.13 Summary93
- 2.14 Recommended Further Reading and References94
- Chapter 3. Policy Management and the Sharing of Data97
- 3.1 Introduction98
- 3.2 The Need to Express Information in a Common Way98
- 3.3 How to Solve Current Problems in Sharing and Reusing Data115
- 3.4 Existing Approaches to Sharing Information119
- 3.5 How to Express Information in a Common Way127
- 3.6 The New DEN-ng Approach134
- 3.7 Summary136
- 3.8 Recommended Further Reading and References137
- Chapter 4. Policy Operation in a PBNM System141
- 4.1 Introduction142
- 4.2 Policy Communication142
- 4.3 General Management Issues151
- 4.4 Policy Operation159
- 4.5 Musings on Implementation174
- 4.6 Summary176
- 4.7 Recommended Further Reading and References177
- Chapter 5. Representing High-Level Policies179
- 5.1 Introduction180
- 5.2 High-Level Policy Specification180
- 5.3 Basic Policies for Specifying Business-Driven Behavior186
- 5.4 DEN-ng Additions to the Ponder Framework of Basic Policies194
- 5.5 Composite Policies208
- 5.6 Use of High-Level Policies in a PBNM System214
- 5.7 High-Level Policy Example214
- 5.8 Summary223
- 5.9 Recommended Further Reading and References225
- Chapter 6. Motivation for the DEN-ng Policy Model227
- 6.1 Introduction228
- 6.2 Motivation228
- 6.3 The New DEN-ng Approach„Functional Requirements238
- 6.4 The New DEN-ng Approach„Connecting the Business and System Viewpoints242
- 6.5 Summary254
- 6.6 Recommended Further Reading and References256
- Chapter 7. The DEN-ng Policy Model259
- 7.1 Introduction260
- 7.2 The DEN-ng Concept of a Policy260
- 7.3 The DEN-ng PolicySet262
- 7.4 DEN-ng PolicyGroup Class266
- 7.5 DEN-ng PolicyRule Class„Basic Concepts268
- 7.6 DEN-ng Events and EventSets276
- 7.7 DEN-ng PolicyStatements277
- 7.8 DEN-ng PolicyConditions289
- 7.9 DEN-ng PolicyActions296
- 7.10 Reusable versus Ad Hoc Policy Elements301
- 7.11 The DEN-ng Policy Model„Interfacing to Other DEN-ng Models302
- 7.12 Summary306
- 7.13 Recommended Further Reading and References308
- Chapter 8. Components of a PBNM System309
- 8.1 Introduction310
- 8.2 Requirements of Different Policies on the PBNM System310
- 8.3 The Life of a Policy314
- 8.4 The Building Blocks of a PBNM System323
- 8.5 Architecture of a PBNM System330
- 8.6 Summary362
- 8.7 Recommended Further Reading and References364
- Chapter 9. Examples of Using the Policy Continuum367
- 9.1 Introduction368
- 9.2 Preliminaries368
- 9.3 Brief Guide to DEN-ng375
- 9.4 The Business View of an MPLS VPN391
- 9.5 The System View401
- 9.6 The Implementation View411
- 9.7 Summary413
- 9.8 Recommended Further Reading and References414
- Chapter 10. Application of PBNM Concepts417
- 10.1 Introduction418
- 10.2 Policy Approaches418
- 10.3 QoS Policy Usage Examples429
- 10.4 Accommodating Changes452
- 10.5 Summary456
- 10.6 Recommended Further Reading and References458
- Chapter 11. New Directions in Policy-Based Management461
- 11.1 Introduction462
- 11.2 A Sampling of Press and Magazine Articles462
- 11.3 Analyst Opinions464
- 11.4 Educational and Research Work465
- 11.5 Examples of Standards-Driven Applications„The TMF466
- 11.6 Product Directions470
- 11.7 Recommended Further Reading and References490
- Appendix 1. Guide to UML493
- Appendix 2. Comments on Non-Essential Policy Terminology from RFC3198499
- Index503
Policy-Based Network Management (PBNM) systems enable business rules and procedures to be translated into policies that configure and control the network and its services. Those who manage network systems are aware that this approach can benefit both network management as well as the development of applications that use network services; however, the details surrounding these systems has been obscured by marketing hype, numerous acronyms, and theoretical complexities.
Policy-Based Network Management: Solutions for the Next Generation cuts through the hype surrounding PBNM and makes it approachable for those who really need to understand what it has to offer. The author, founder of the IETF Policy Framework working group, discusses system requirements, information models, and system components for Policy-Based Management. He also provide practitioners with a resource for developing and/or incorporating PBNM systems. As network systems become larger and more complex, creating policies for them has become a crucial step in the management of network systems, and this book is a welcome addition to this exciting approach.
* Presents a completely new approach to PBNM that unites the business, system, and implementation spheres.
* As the basis for examples and discussion, uses the DEN-ng information model, an easy-to-understand open standard tied closely to eTOM and NGOSS.
* Introduces the Ponder system, then examines Ponder extensions designed to enhance the structure of high-level policies and their application in a PBNM system.
* Filled with examples illustrating how policies are most effectively used in a PBNM system and what new directions PBNM is likely to take.
Policy-Based Network Management: Solutions for the Next Generation cuts through the hype surrounding PBNM and makes it approachable for those who really need to understand what it has to offer. The author, founder of the IETF Policy Framework working group, discusses system requirements, information models, and system components for Policy-Based Management. He also provide practitioners with a resource for developing and/or incorporating PBNM systems. As network systems become larger and more complex, creating policies for them has become a crucial step in the management of network systems, and this book is a welcome addition to this exciting approach.
* Presents a completely new approach to PBNM that unites the business, system, and implementation spheres.
* As the basis for examples and discussion, uses the DEN-ng information model, an easy-to-understand open standard tied closely to eTOM and NGOSS.
* Introduces the Ponder system, then examines Ponder extensions designed to enhance the structure of high-level policies and their application in a PBNM system.
* Filled with examples illustrating how policies are most effectively used in a PBNM system and what new directions PBNM is likely to take.