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Chapter 19 - Why The Internet Works Well

Chapter 19 - Why The Internet Works Well. Introduction The Internet Works Well Open System (non-proprietary) IP Provides Flexibility [uses "layered protocol" approach]

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Chapter 19 - Why The Internet Works Well

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  1. Chapter 19 - Why The Internet Works Well • Introduction • The Internet Works Well • Open System (non-proprietary) • IP Provides Flexibility [uses "layered protocol" approach] • The Internet Protocol accommodates many types of hardware because it makes almost no assumptions about the underlying network hardware. • Because TCP/IP standards documents specify the exact way to send IP datagrams on a given type of network, computers and routers from multiple vendors always agree on the details.

  2. Chapter 19 - Why The Internet Works Well • TCP Provides Reliability • Because it constantly monitors conditions on the Internet and automatically adapts, TCP makes reliable communication possible even when the Internet experiences temporary congestion. • TCP/IP Software Was Engineered For Efficiency • TCP/IP Research Emphasized Practical Results

  3. Chapter 19 - Why The Internet Works Well • The Formula For Success • TCP/IP protocol software and the Internet were designed by talented, dedicated people. • The Internet was a dream that inspired and challenged the research team. • Researchers were allowed to experiment, even when there was no short-term economic payoff. Indeed, Internet research often used new, innovative technologies that were expensive compared to existing technologies. • Instead of dreaming about a system that solved all problems, researchers built the Internet to operate efficiently.

  4. Chapter 19 - Why The Internet Works Well • Researchers insisted that each part of the Internet work well in practice before they adopted it as a standard. • Internet technology solves an important, practical problem, the problem occurs whenever an organization has multiple networks. • Terms • OSI Model • TCP/IP standards documents • rough consensus and working code • Open System

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