Strassner Policy-Based Network Management

Solutions for the Next Generation
1. Auflage 2003
ISBN: 978-0-08-049210-0
Verlag: Elsevier Science & Techn.
Format: PDF
Kopierschutz: 1 - PDF Watermark

E-Book, Englisch, 516 Seiten, Web PDF

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.

Autoren/Hrsg.

Strassner, John

Inhaltsverzeichnis

1;Front Cover;1
2;Policy-Based Network Management;4
3;Copyright Page;5
4;Contents;6
5;Chapter 1. The Foundation of Policy Management;20
5.1;1.1 Introduction—A Retrospective;21
5.2;1.2 Where We Are Today;26
5.3;1.3 Definition of Policy Management;29
5.4;1.4 Introduction and Motivation for Policy Management;31
5.5;1.5 The Need for a New Shared Information Model;43
5.6;1.6 The Benefits of PBNM;50
5.7;1.7 Summary;55
5.8;1.8 Recommended Further Readings and References;56
6;Chapter 2. Policy Management Fundamentals;58
6.1;2.1 Introduction;59
6.2;2.2 The Need for Object-Oriented Analysis, Design, and Modeling in PBNM Systems ;59
6.3;2.3 Conceptual Policy Model;72
6.4;2.4 Definition of a PBM System;75
6.5;2.5 Policy Terminology—An Approach;77
6.6;2.6 Essential Terminology for PBM Systems;78
6.7;2.7 New Terminology Not Covered in RFC3198;97
6.8;2.8 Definition of Policy-Based Management;100
6.9;2.9 Definition of Policy-Based Network Management;100
6.10;2.10 High-Level Requirements of a PBNM System;100
6.11;2.11 Using Modeling Used to Solve Information Overload;103
6.12;2.12 Policy Used to Express Business Requirements;110
6.13;2.13 Summary;112
6.14;2.14 Recommended Further Reading and References;113
7;Chapter 3. Policy Management and the Sharing of Data;116
7.1;3.1 Introduction;117
7.2;3.2 The Need to Express Information in a Common Way;117
7.3;3.3 How to Solve Current Problems in Sharing and Reusing Data;134
7.4;3.4 Existing Approaches to Sharing Information;138
7.5;3.5 How to Express Information in a Common Way;146
7.6;3.6 The New DEN-ng Approach;153
7.7;3.7 Summary;155
7.8;3.8 Recommended Further Reading and References;156
8;Chapter 4. Policy Operation in a PBNM System;160
8.1;4.1 Introduction;161
8.2;4.2 Policy Communication;161
8.3;4.3 General Management Issues;170
8.4;4.4 Policy Operation;178
8.5;4.5 Musings on Implementation;193
8.6;4.6 Summary;195
8.7;4.7 Recommended Further Reading and References;196
9;Chapter 5. Representing High-Level Policies;198
9.1;5.1 Introduction;199
9.2;5.2 High-Level Policy Specification;199
9.3;5.3 Basic Policies for Specifying Business-Driven Behavior;205
9.4;5.4 DEN-ng Additions to the Ponder Framework of Basic Policies ;213
9.5;5.5 Composite Policies;227
9.6;5.6 Use of High-Level Policies in a PBNM System;233
9.7;5.7 High-Level Policy Example;233
9.8;5.8 Summary;242
9.9;5.9 Recommended Further Reading and References;244
10;Chapter 6. Motivation for the DEN-ng Policy Model;246
10.1;6.1 Introduction;247
10.2;6.2 Motivation;247
10.3;6.3 The New DEN-ng Approach—Functional Requirements;257
10.4;6.4 The New DEN-ng Approach—Connecting the Business and System Viewpoints ;261
10.5;6.5 Summary;273
10.6;6.6 Recommended Further Reading and References;275
11;Chapter 7. The DEN-ng Policy Model;278
11.1;7.1 Introduction;279
11.2;7.2 The DEN-ng Concept of a Policy;279
11.3;7.3 The DEN-ng PolicySet;281
11.4;7.4 DEN-ng PolicyGroup Class;285
11.5;7.5 DEN-ng PolicyRule Class—Basic Concepts;287
11.6;7.6 DEN-ng Events and EventSets;295
11.7;7.7 DEN-ng PolicyStatements;296
11.8;7.8 DEN-ng PolicyConditions;308
11.9;7.9 DEN-ng PolicyActions;315
11.10;7.10 Reusable versus Ad Hoc Policy Elements;320
11.11;7.11 The DEN-ng Policy Model—Interfacing to Other DEN-ng Models ;321
11.12;7.12 Summary;325
11.13;7.13 Recommended Further Reading and References;327
12;Chapter 8. Components of a PBNM System;328
12.1;8.1 Introduction;329
12.2;8.2 Requirements of Different Policies on the PBNM System;329
12.3;8.3 The Life of a Policy;333
12.4;8.4 The Building Blocks of a PBNM System;342
12.5;8.5 Architecture of a PBNM System;349
12.6;8.6 Summary;381
12.7;8.7 Recommended Further Reading and References;383
13;Chapter 9. Examples of Using the Policy Continuum;386
13.1;9.1 Introduction;387
13.2;9.2 Preliminaries;387
13.3;9.3 Brief Guide to DEN-ng;394
13.4;9.4 The Business View of an MPLS VPN;410
13.5;9.5 The System View;420
13.6;9.6 The Implementation View;430
13.7;9.7 Summary;432
13.8;9.8 Recommended Further Reading and References;433
14;Chapter 10. Application of PBNM Concepts;436
14.1;10.1 Introduction;437
14.2;10.2 Policy Approaches;437
14.3;10.3 QoS Policy Usage Examples;448
14.4;10.4 Accommodating Changes;471
14.5;10.5 Summary;475
14.6;10.6 Recommended Further Reading and References;477
15;Chapter 11. New Directions in Policy-Based Management;480
15.1;11.1 Introduction;481
15.2;11.2 A Sampling of Press and Magazine Articles;481
15.3;11.3 Analyst Opinions;483
15.4;11.4 Educational and Research Work;484
15.5;11.5 Examples of Standards-Driven Applications—The TMF;485
15.6;11.6 Product Directions;489
15.7;11.7 Recommended Further Reading and References;509
16;Appendix 1. Guide to UML;512
17;Appendix 2. Comments on Non-Essential Policy Terminology from RFC3198 ;518
18;Index;522