Network Infrastructure and Architecture: Designing by Krzysztof Iniewski

By Krzysztof Iniewski

A accomplished, Thorough advent to High-Speed Networking applied sciences and Protocols

Network Infrastructure and structure: Designing High-Availability Networks takes a distinct method of the topic by means of masking the tips underlying networks, the structure of the community components, and the implementation of those components in optical and VLSI applied sciences. also, it specializes in parts now not largely lined in present books: actual delivery and switching, the method and means of development networking undefined, and new applied sciences being deployed available to buy, equivalent to Metro Wave department Multiplexing (MWDM), Resilient Packet jewelry (RPR), Optical Ethernet, and more.

Divided into 5 succinct components, the publication covers:

  • Optical transmission

  • Networking protocols

  • VLSI chips

  • Data switching

  • Networking components and design

Complete with case reviews, examples, and workouts all through, the publication is complemented with bankruptcy ambitions, summaries, and lists of key issues to assist readers in greedy the cloth presented.

Network Infrastructure and structure deals execs, complex undergraduates, and graduate scholars a clean view on high-speed networking from the actual layer perspective.

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Extra resources for Network Infrastructure and Architecture: Designing High-Availability Networks

Sample text

In a general sense, circuit switching is a centralized model. To establish a global path between A and B, some authority, in the form of a central management system, has to decide where that dedicated path is established. Packet switching, on the other hand, is a decentralized system. Local paths between network elements can be established locally only by viewing large networks in close proximity. In this way, there is less need for centralized management, and large portions of system intelligence can be distributed through the network.

Consider your cable television system. To get multiple TV channels, each channel is broadcast on a different frequency. All signals are “mixed” or, to use a more technical term, multiplexed, using frequency-division multiplexing (FDM). FDM is rarely used in optical networks but has a close relative called wavelengthdivision multiplexing (WDM). Wavelength-Division Multiplexing WDM works on a principle similar to that of FDM. It is a technique of “combining” or multiplexing multiple wavelengths in an optical fiber.

28 INTRODUCTION TO NETWORKING • Synchronous TDM takes multiple synchronized streams of data, each carrying information at a certain bit rate, and assigns each piece of data a precise time slot in the output stream. • Asynchronous TDM takes multiple asynchronous variable-size packets and assigns them in the output stream. The length of the time slot is determined based on the relative needs of input data streams. Asynchronous TDM is more efficient but much more complex than synchronous TDM. This technique requires the use of packet buffering and queuing.

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