By Markus Hofmann
Because the net has grown, so have the demanding situations linked to offering static, streaming, and dynamic content material to end-users. This publication is exclusive in that it addresses the subject of content material networking solely and comprehensively, tracing the evolution from conventional net caching to modern day open and drastically extra versatile structure. With this evolutionary strategy, the authors emphasize the field's so much continual innovations, ideas, and mechanisms--the center info that can assist you comprehend why and the way content material supply works at the present time, and follow that wisdom within the future.
- Focuses at the rules that might provide you with a deep and well timed realizing of content material networking.
- Offers dozens of protocol-specific examples displaying how real-life content material Networks are at present designed and implemented.
- Provides vast attention of content material companies, together with either the net content material model Protocol (ICAP) and Open Pluggable aspect providers (OPES).
- Examines equipment for aiding time-constrained media equivalent to streaming audio and video and real-time media equivalent to immediate messages.
- Combines the imaginative and prescient and rigor of a fashionable researcher with the sensible event of a pro improvement engineer to supply a different blend of theoretical intensity and sensible application.
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Additional info for Content Networking : Architecture, Protocols, and Practice (The Morgan Kaufmann Series in Networking)
In practice, popular protocols have been designed making some implicit assumptions about other layers in the protocol stack. Most of these assumptions have not been written down explicitly, but become apparent with recent changes in technology. As such, transport protocols have made implicit assumptions about IP that are affected by the underlying link layer in use. TCP, for instance, implements a congestion control 28 CHAPTER 2 Content Transport scheme based on the assumption that packet loss is caused by network congestion.
Depending on the resource type and the respective situation, different metadata can be included. While indicating the language of a text object might be helpful, for example, the same would not make sense for binary code or photos. The following section on HTTP message formats includes a discussion on how metadata is embedded in HTTP messages. 2 HTTP Message Format A message is the fundamental communication unit in HTTP. It occurs either in the form of a request sent from a client to a server, or as a response sent from a 34 CHAPTER 2 Content Transport server to a client.
Network address translators, firewalls, or interception proxies) challenges the Internet’s core characteristics—mainly the fundamental End-to-End principle, which is explained in the following section. 2 The End-to-End Principle The End-to-End argument is attributed to Dave Clark and his colleagues at MIT, who identified and named it in a classical paper published in 1984 [SRD84]. The End-to-End argument describes a design principle that organizes and guides the placement of functions within a system.
Content Networking : Architecture, Protocols, and Practice (The Morgan Kaufmann Series in Networking) by Markus Hofmann