By Keith W. Ross, James F. Kurose

Computer Networking keeps with an early emphasis on application-layer paradigms and alertness programming interfaces (the most sensible layer), encouraging a hands-on event with protocols and networking techniques, sooner than operating down the protocol stack to extra summary layers.

This booklet has turn into the dominant e-book for this path due to the authors’ reputations, the precision of rationalization, the standard of the artwork application, and the price in their personal supplements.

Visit the authors’ web publication for info and assets to debate the latest variation, in addition to important insights, educating assistance, and dialogue in regards to the box of computing device Networking

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Additional info for Computer Networking: A Top-Down Approach (6th Edition)

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Because the upstream channel is also shared, a distributed multiple access protocol is needed to coordinate transmissions and avoid collisions. ) Although DSL and cable networks currently represent more than 90 percent of residential broadband access in the United States, an up-and-coming technology that promises even higher speeds is the deployment of fiber to the home (FTTH) [FTTH Council 2011a]. As the name suggests, the FTTH concept is simple— provide an optical fiber path from the CO directly to the home.

A residence obtains cable Internet access from the same company that provides its cable television. 6, fiber optics connect the cable head end to neighborhood-level junctions, from which traditional coaxial cable is then used to reach individual houses and apartments. Each neighborhood junction typically supports 500 to 5,000 homes. Because both fiber and coaxial cable are employed in this system, it is often referred to as hybrid fiber coax (HFC). 2 • THE NETWORK EDGE Cable internet access requires special modems, called cable modems.

Recall from the previous section that in computer networking jargon, the computers and other devices connected to the Internet are often referred to as end systems. 3. , laptops, smartphones, and tablets). Furthermore, an increasing number of non-traditional devices are being attached to the Internet as end systems (see sidebar). End systems are also referred to as hosts because they host (that is, run) application programs such as a Web browser program, a Web server program, an e-mail client program, or an e-mail server program.

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