Uyless Black's Networking 101
For any undergraduate introductory course on computer networking and the Internet.This book offers a pragmatic, authoritative introduction to networks and the Internet as they operate today: their key concepts, basic operations, and essential terminology. It assumes no previous technical knowledge, drawing upon real-world analogies and practical examples while never trivializing its subject.
- Paperback | 224 pages
- 178.8 x 234.4 x 16mm | 435.46g
- 04 Sep 2001
- Pearson Education (US)
- Prentice Hall
- Upper Saddle River, United States
Table of contents
Preface. Notes for the Reader. Approach to Describing User Network Sessions. 1. Getting Started. Computer Networks and Why They Exist. Example of a Computer Network. The Joys of Uptime. Point-to-Point Connections? The Switch. Resource Sharing. Examples of Network Services. A Network by Any Other Name? Summary.2. Computer and Human Communications. Communications Between Humans. Communications Between Computers. Codes: The Language of Computer Networks. Private Instant Messaging, Chat Rooms, and Email. Just About Everything Needs Synchronization. Codes: We've Been Using Them for Centuries. Binary Numbers: Bits, Bytes, Nibbles, and, Sometimes, Octets. Extending the Analogy. The Path Between the Computers. Summary.3. Sending and Receiving User Traffic on the Communications Link. Voice Signals. Data Signals. Is the Link Analog or Digital? Bits and Codes on the Link. Bits, Bandwidth, and Broadband Networks. One Way to Increase Bandwidth. Comparison of Two Different Bandwidths. Why Longer Bits Are More Robust. Error Detection: Computers and Humans. Multilevel Coding. Summary.4. The Modem and the Telephone Network. Defining the Problem. Examining the Solution. Modulation Methods. Connecting to the Telephone Network. Sending Ted's "Payload" to Bob. Location of the Modem. Summary.5. Digital Networks. Advantages of Digital Networks. Digital Voice. Analog-to-Digital Conversion. It's All a Matter of 1s and 0s. The All-Digital Network. Summary.6. Bit Rates and Broadband Networks. Response Time. Examples of Bit Rates. Broadband Systems Revisited. The Network Cloud and the UNI. Broadband at the Local Loop: The Final Mile. Summary.7. Voice and Data Characteristics. Voice Requirements. Data Requirements. Data is "Bursty". The Effect of the Bursty Process on the Communications Link. The Packet. Summary.8. Multiplexing and Packet Switching. Idle Bandwidth = Wasted Capacity. The Solution Is Multiplexing. Thousands of Users on One Link. Combining the Multiplexer and the Switch: The Packet Switch. Summary.9. Network IDs: Addresses. Postal Addresses and Network Addresses. The Address in the Packet Header. The IP Address. Network ID/Subnet ID/Host ID Is Like Area Code/Exchange Code/Line Number. The IP Addressing Standard. Summary.10. Network IDs: Names. The Network Name Is Not an Address. Flexibility of the Network Name. Moving Around and Keeping the Same Name. Is It infoinst.com, INFOINST.com, or InfoInst.com? But Isn't the Network Name an Email Address? A Vital Network Component: The Name Server. Email and Other Forms of Messages. Name Servers Support Thousands of Users. Next, Routing the Packet. The Name Server Is Like a Telephone Directory. Source and Destination IDs. Summary.11. Connecting to the Data Network. Revisiting the Switch. Data Travels Through the Telephone Local Exchange to the Data Network. Why Use the Telephone Exchange? Why Not Use the Cable TV Network? Hereafter, Assume the Existence of the Telco or Cable TV Links. The Packet Switch is a Router. Summary.12. Routing Traffic Through the Network. Comparing Postal Bins and Router Queues. Revisiting the Locations of Ted and Bob in the Network. Using Destination Addresses to Make Routing Decisions. Sending the Packet to Dallas and Processing It. Processing the Packet at the Dallas Router. Sending the Packet to the Chicago Router and Processing It. Processing the Packet at the Chicago Router. Dealing With a Mail Server if a Mail Server Is Involved. Routing Activities from the Users' View. Summary.13. Backup and Route Discovery. Using Alternate Routes for Backup Operations. Discovering Problems. Acknowledgment Operations May Not Happen. Building the Road Map with Route Advertising. Summary.14. The Internet and Internet Service Providers (ISPs). Finally and Formally Introducing the Internet. Connecting to the Internet. Supporting Millions of Computers and Thousands of Networks. The Internet Service Providers (ISPs). Summary.15. Network IDs: Domain Names. Review of Network Names. Hierarchical Names. Name Domains and Name Servers. The Domain Name System (DNS). The Internet DNS Root Servers. Using DNS to Look Up an Address. Summary.16. Putting It Together. Obtaining Bob's Address. If the Traffic Uses a Server. Insert the Address into the Packet. Operations at the Router. Delivery to the Dallas Node, and Then to Chicago. Sending the Reply Back to Ted. Summary.17. Dialing in to the Net. The Dial-Up Arrangement. The Dial-Up Background Hisses and Tones. Furnishing Information to the ISP. What the ISP Does with the Information. Summary.18. The Web. What the Web Does. An Experiment: Go to http://www.infoinst.com. If You Are Interested In. An Order for a Famous Book. And the Next Step. Summary.19. The Protocols. Internet Protocol (IP). Transmission Control Protocol (TCP). Open Shortest Path First (OSPF). Simple Mail Transfer Protocol (SMTP). Hypertext Transfer Protocol (HTTP). Domain Name System (DNS). Summary.20. The Next Step. What is Next? Follow-Ups. A Look into the Future.Appendix A: Typical User Sessions in a Computer Network. Internet Chat. Private Internet Messaging with a Server. Private Instant Messaging Directly. Email. Web Browsing. File Transfer. Interactive Voice, Video, and Data Dialogues With a Server. Interactive Voice and Data Dialogues without a Server.Appendix B: Modulation Techniques. Appendix C: Codes. Index.
About Uyless N. Black
UYLESS BLACK is a widely known and respected consultant and lecturer on computer networks and data communications and author of every book in the Prentice Hall Series in Advanced Communications Technologies, including Voice Over IP, IP Routing Protocols, and MPLS and Label Switching Networks. He resides in Virginia's Shenandoah Valley.