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Content Networking: Architecture, Protocols, and Practice Review by John R. Vacca
DRIVING THE CONTENT NETWORKING EVOLUTION
While the specific protocols, interfaces, and languages used in content networking will continue to evolve and change, it is expected that the core principles and concepts underlying content networks will remain valid for a long time. Authors Markus Hofmann and Leland R. Beaumont have done an outstanding job on focusing on the principles and attempts to explain and evaluate content networking in this book.
Hofmann and Beaumont begin this book by explaining the notion of content networking and establishing the key concepts. Next, the authors explain the core principles that guided the design of the Internet, which leads into a discussion of how content networking is transported over the Internet. In addition, the authors show how Web caching is used to bring static content networking closer to the users and how this helps in improving content delivery over the Internet. They also include streaming media such as audio and video. Then, they deal with the question of how user requests actually get to the server or Web cache best suited to serve each user. The authors then introduce the new concept of peer-to-peer networks, in which the traditional client-server model of the Web is replaced with a federation of end-systems that help each other in delivering content networking. Next, they extend the notion of content networking to include delivery of interactive media, such as instant messaging. Then, they go on to describe Content Services. The authors continue by bringing you the various technologies and network elements together, and explain how they can be deployed to build content networks for specific needs. Next, they provide an overview of the various standards activities relevant to the field on content networking, and explain which efforts are on interest for each specific area. Finally, they summarize their journey through the evolution of content networks and attempt to provide an outlook of what the future might bring.
With the preceding in mind, the authors have done an excellent job of focusing this book on the architectures and protocols specific to content networks. At the end of the day, you, the reader, will still be involved in the evolution of content networking; but, the possibilities will still exceed the imagination.