The Internet and Its Uses              Working at a Small-to-Medium Business or ISP –              Chapter 1Version 4.1   ...
Objectives Describe how the Internet is evolving and the various ways that  businesses are using the Internet. Describe ...
What is the Internet? A worldwide, publicly accessible network of networks. Business uses of the Internet:    – E-commer...
What is the Internet? A standard is a set of rules for how something must be  done. Internet standards are the product o...
What is the Internet? An ISP is a company or organization through which a  subscriber obtains Internet access.           ...
Internet Service Providers ISPs offer various connection options.                            © 2007 Cisco Systems, Inc. A...
Internet Service Providers High-bandwidth connection options for businesses:    – T1 connections    – T3 connections    –...
Internet Service Providers Hierarchical structure of the Internet.                              © 2007 Cisco Systems, Inc...
Internet Service Providers Use network utilities to map the Internet.    – Ping    – Traceroute                          ...
ISP Connectivity Access Devices: DSLAM, CMTS, modems, wireless  bridging equipment Border Gateway Routers Servers Powe...
ISP Connectivity Scalability to allow for future growth. Modular devices with expansion slots.                          ...
ISP Connectivity Roles and responsibilities within an ISP:    – On-site Installation    – Customer Service    – Planning ...
Summary Businesses use the Internet for e-commerce,  communications, collaboration, and training. Internetworking standa...
© 2007 Cisco Systems, Inc. All rights reserved.   Cisco Public   14
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Discovery smb isp_chapter1

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  1. 1. The Internet and Its Uses Working at a Small-to-Medium Business or ISP – Chapter 1Version 4.1 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 1
  2. 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. © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 2
  3. 3. What is the Internet? A worldwide, publicly accessible network of networks. Business uses of the Internet: – E-commerce – Communications – Collaboration and training © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 3
  4. 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. © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 4
  5. 5. What is the Internet? An ISP is a company or organization through which a subscriber obtains Internet access. © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 5
  6. 6. Internet Service Providers ISPs offer various connection options. © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 6
  7. 7. Internet Service Providers High-bandwidth connection options for businesses: – T1 connections – T3 connections – Metro Ethernet © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 7
  8. 8. Internet Service Providers Hierarchical structure of the Internet. © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 8
  9. 9. Internet Service Providers Use network utilities to map the Internet. – Ping – Traceroute © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 9
  10. 10. ISP Connectivity Access Devices: DSLAM, CMTS, modems, wireless bridging equipment Border Gateway Routers Servers Power conditioning equipment High-capacity air conditioning © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 10
  11. 11. ISP Connectivity Scalability to allow for future growth. Modular devices with expansion slots. © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 11
  12. 12. ISP Connectivity Roles and responsibilities within an ISP: – On-site Installation – Customer Service – Planning and Provisioning – NOC – Help Desk © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 12
  13. 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. © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 13
  14. 14. © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 14

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