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The Internet and Its Uses

The Internet and Its Uses. Working at a Small-to-Medium Business or ISP – Chapter 1. Objectives. Describe how the Internet is evolving and the various ways that businesses are using the Internet. Describe the importance of standards in the continuing growth of the Internet.

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The Internet and Its Uses

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  1. The Internet and Its Uses Working at a Small-to-Medium Business or ISP – Chapter 1

  2. Objectives • Describe how the Internet is evolving and the various ways that businesses are using the Internet. • Describe the importance of standards in the continuing growth of the Internet. • Describe the purpose of an ISP and the services that it offers. • Describe the hierarchical structure of the Internet and the purpose of the Point of Presence (POP) and the Internet Exchange Point (IXP). • Identify the types of devices used by the ISP to provide services and describe the importance of scalability in the ISP network. • Describe the various network support teams that work at an ISP and the roles and responsibilities of each one.

  3. What is the Internet? • A worldwide, publicly accessible network of networks. • Business uses of the Internet: • E-commerce • Communications • Collaboration and training

  4. What is the Internet? • A standard is a set of rules for how something must be done. • Internet standards are the product of a cycle of discussion, problem solving, and testing.

  5. What is the Internet? • An ISP is a company or organization through which a subscriber obtains Internet access.

  6. Internet Service Providers • ISPs offer various connection options.

  7. Internet Service Providers • High-bandwidth connection options for businesses: • T1 connections • T3 connections • Metro Ethernet

  8. Internet Service Providers • Hierarchical structure of the Internet.

  9. Internet Service Providers • Use network utilities to map the Internet. • Ping • Traceroute

  10. ISP Connectivity • Access Devices: DSLAM, CMTS, modems, wireless bridging equipment • Border Gateway Routers • Servers • Power conditioning equipment • High-capacity air conditioning

  11. ISP Connectivity • Scalability to allow for future growth. • Modular devices with expansion slots.

  12. ISP Connectivity • Roles and responsibilities within an ISP: • On-site Installation • Customer Service • Planning and Provisioning • NOC • Help Desk

  13. Summary • Businesses use the Internet for e-commerce, communications, collaboration, and training. • Internetworking standards ensure that all devices connecting to the Internet use the same set of rules. • All Internet connections are made through an Internet Service Provider (ISP). • Multiple ISPs join together at an Internet Exchange Point (IXP) to gain access to each other’s networks. • ISPs must provide a reliable and scalable network. • ISP organizations are composed of many teams offering a range of support services.

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