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Navigating the Network-centric World

Explore the impact of networks on daily life, the role of data networking, key components of networks, challenges of converged networks, and network architecture characteristics. Learn about fault tolerance, scalability, quality of service, and security. Discover how networks enhance communication, learning, work, and play. Understand network components, messaging flow, and converged communication networks. Delve into network architecture design, packet switching, internet characteristics, and network security measures. Install and utilize IRC clients and Wiki servers to enhance your networking experience.

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Navigating the Network-centric World

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  1. Living in a Network Centric World Network Fundamentals – Chapter 1

  2. Objectives • How networks impact daily life • Role of data networking in the human network • Key components of any data network • Opportunities and challenges of converged networks • Characteristics of network architectures: • fault tolerance • scalability • quality of service • security • Installing and using IRC clients and a Wiki server

  3. How Networks Impact Daily Life • Benefits of instantaneous communication

  4. How Networks Impact Daily Life • Characteristics and purpose of communication media • Instant messaging • Real time communication • between 2 or more • people based on typed text • Weblogs (Blogs) • Web pages created • by an individual • Podcasting • Website that contains • audio files available • for downloading

  5. How Networks Impact Daily Life • Information networks improve teaching and learning

  6. How Networks Impact Daily Life • Networks change the way we work

  7. How Networks Impact Daily Life • Networks support the way we play

  8. Networking: Role, Components, and Challenges • Characteristics of communication • Rules or agreements are 1st established • Important information may need to be repeated • Modes of communication are important

  9. Networking: Role, Components, and Challenges • Elements of a network • Devices • Communicate with each other • Medium • Connects devices together • Messages • Information • Rules • How messages flow

  10. Networking: Role, Components, and Challenges Converged networks in communications • Converged network: A network that can carry • voice • video • data • over the same network

  11. Network Architecture Characteristics Four characteristics of network architecture design • Fault tolerance • Scalability • Quality of service • Security

  12. Network Architecture Characteristics • Packet switching

  13. Network Architecture Characteristics • Characteristics of the Internet • Hierarchical • Common standards • Common protocols

  14. Network Architecture Characteristics • Quality of Service

  15. Network Architecture Characteristics • QoS mechanisms

  16. Network Architecture Characteristics • QoS strategies

  17. Network Architecture Characteristics • Networks must be secure

  18. Network Architecture Characteristics • Measures to secure data networks • Ensure confidentiality through • User authentication • Data encryption • Maintain communication integrity through use of • Digital signatures • Ensure availability through use of • Firewalls • Redundant network architecture • Hardware without a single • point of failure

  19. IRC Clients and Wiki Server • Install and use IRC clients and a Wiki server

  20. Summary

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