Includes bibliographical references and index.

Cover; Title Page; Copyright; Contents; Disclaimer; About the Authors; Foreword; Preface; Acknowledgements; List of Abbreviations; Chapter 1 Introduction; 1.1 What is AAA?; 1.2 Open Standards and the IETF; 1.3 What is Diameter?; 1.3.1 Diameter versus RADIUS; 1.3.2 Diameter Improvements; 1.4 What is freeDiameter?; References; Chapter 2 Fundamental Diameter Concepts and Building Blocks; 2.1 Introduction; 2.2 Diameter Nodes; 2.3 Diameter Protocol Structure; 2.4 Diameter Applications; 2.5 Connections; 2.5.1 Transport Layer; 2.5.2 Peer-to-Peer Messaging Layer

2.5.3 Setting up a Connection between freeDiameter Peers2.6 Diameter Message Overview; 2.6.1 The Command Code Format; 2.6.2 Message Structure; 2.6.3 Attribute-Value Pairs; 2.6.3.1 Format; 2.6.4 Derived AVP Data Formats; 2.7 Diameter Sessions; 2.8 Transaction Results; 2.8.1 Successful Transactions; 2.8.2 Protocol Errors; 2.8.3 Transient Failures; 2.8.4 Permanent Failures; 2.9 Diameter Agents; 2.9.1 Saving State; 2.9.2 Redirect Agents; 2.9.3 Relay Agents; 2.9.4 Proxy Agents; 2.9.5 Translation Agents; References; Chapter 3 Communication between Neighboring Peers; 3.1 Introduction

3.2 Peer Connections and Diameter Sessions3.3 The DiameterIdentity; 3.4 Peer Discovery; 3.4.1 Static Discovery; 3.4.1.1 Static Discovery in freeDiameter; 3.4.2 Dynamic Discovery; 3.4.2.1 Dynamic Discovery and DiameterURI; 3.4.2.2 DNS Further Reading; 3.5 Connection Establishment; 3.5.1 The Election Process: Handling Simultaneous Connection Attempts; 3.6 Capabilities Exchange; 3.6.1 freeDiameter example; 3.6.2 The Capabilities Exchange Request; 3.6.3 Capabilities Exchange Answer; 3.6.4 Hop-by-Hop Identifiers; 3.7 The Peer Table; 3.8 Peer Connection Maintenance

3.8.1 Transport Failure, Failover, and Failback Procedures3.8.2 Peer State Machine; 3.9 Advanced Transport and Peer Topics; 3.9.1 TCP Multi-homing; 3.9.2 SCTP Multi-homing; 3.9.2.1 Multi-homing in freeDiameter; 3.9.3 Avoiding Head-of-Line Blocking; 3.9.4 Multiple Connection Instances; References; Chapter 4 Diameter End-to-End Communication; 4.1 Introduction; 4.2 The Routing Table; 4.3 Diameter Request Routing; 4.3.1 AVPs to Route Request Messages; 4.3.1.1 Destination-Realm AVP; 4.3.1.2 Destination-Host AVP; 4.3.1.3 Auth-Application-Id and Acct-Application-Id AVPs; 4.3.1.4 User-Name AVP

4.3.2 Routing AVPs4.3.2.1 Route-Record AVP; 4.3.2.2 Proxy-Info AVP; 4.4 Request Routing Error Handling; 4.4.1 Detecting Duplicated Messages; 4.4.2 Error Codes; 4.5 Answer Message Routing; 4.5.1 Relaying and Proxying Answer Messages; 4.6 Intra-Realm versus Inter-Realm Communication; 4.7 Diameter Routing and Inter-Connection Networks; 4.7.1 Inter-Connection Approaches; 4.7.2 Dynamic Diameter Node Discovery; 4.7.2.1 Alternative 1; 4.7.2.2 Alternative 2; 4.7.2.3 Alternative 3; 4.8 Diameter Overload Control; 4.8.1 Overload Reports; 4.8.2 Overload Control State

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Presents the principles, design, development and applications of the Diameter protocol suite The Diameter protocol was born in the Internet Engineering Task Force (IETF) and designed to be a general-purpose Authentication, Authorization, and Accounting (AAA) protocol applicable to many network environments. This book is for everyone who wants to understand the Diameter protocol and its applications. This book explains the place Diameter holds in global telecommunication networks and teaches system architects and designers how to incorporate Diameter into their network environments. Diameter: New Generation AAA Protocol - Design, Practice and Applications begins by describing the foundation of Diameter step-by-step, starting with building blocks of the protocol, and progressing from a simple two-party exchange to a multi-party exchange involving complex routing. It discusses the motivation for using Diameter, talks about its predecessor, RADIUS, and introduces the open source Diameter implementation, freeDiameter. The book expands beyond protocol basics to cover end-to-end communication, security functionality, and real-world applications, extending to the backend infrastructure of mobile telecommunications. In addition, an advanced chapter teaches readers how to develop Diameter extensions for their own AAA applications.-Written by an experienced author team who are members of the group that standardized Diameter in the IETF and are at the forefront of this cutting-edge technology -Presents the still-developing topic of Diameter from both introductory and advanced levels -Makes available for download a virtual machine containing the open source implementation: -Provides hands-on experience via freeDiameter examples and exercises throughout the book Diameter: New Generation AAA Protocol - Design, Practice and Applications will appeal to system architects and system designers, programmers, standardization experts new to Diameter, students and researchers interested in technology that is deployed by many network operators.

Also available in print.

Mode of access: World Wide Web

Online resource; title from digital title page (viewed on June 28, 2019).