Computer Networking First-Step by Odom, Wendell -- Read -- Imperial Library of Trantor

Index

Introduction

Part I. Networking Basics Chapter 1. What Is a Network?

What an Elephant—err, a Network—Looks Like Three Blind Men—The Server Guy, the Cabling Guy, and the Network Guy Big Company, Multiple Sites: An Enterprise WAN Just You and Me and the Whole World—The Internet

No, Really, What Is a Network? Different Types of Traditional Computer Networks Chapter Summary Chapter Review Questions

Chapter 2. A Network's Reason for Existence

Web Browsing Electronic Mail (E-Mail) Downloading and Transferring Files

Using the Network by Accident Using the Network on Purpose Chapter Summary Chapter Review Questions

Chapter 3. Building a Network: It All Starts with a Plan

Rules, Schmools for Networking Examples of Good Rules for Networking Traveling a Roadway for a Bit to Get a Byte Example Rule for Sending the Bits Sending the Bits a Packet (Package) at a Time What to Do When the Bits Get Bashed Proprietary Network Models Prevent Pervasive Population of Networking Devices Public Network Models Provide Pervasively Popular Networks How TCP/IP Standards Grow Some Pretty Popular TCP/IP Protocols Transmission Control Protocol (TCP) Internet Protocol (IP) TCP/IP Standards That Aren’t TCP/IP Standards Standards for Physical Networking Nearby Standards for Physical Networking Far Away T-Rex Versus the Elephant

Conforming to the Rules The Book(s) of Rules How to Eat an Elephant, TCP/IP Style How to Eat a T-Rex, OSI Style Chapter Summary Chapter Review Questions

Part II. Running the Local Department of (Network) Transportation Chapter 4. How to Build a Local (Network) Roadway

What’s a Local-Area Network? Transmitting Bits Across the Local Network Roadway Driving Bits Across a Wire The Need for a Two-Lane (Network) Road The Equivalent of Asphalt: Cables Painting the Lines on the Road: Connectors Driving in the Right Lane (Pair) on the Road

Driving Bits Across the Network Roadway Sharing the Local Roadway: Ethernet Hubs Dirt Roads Versus the DOT Chapter Summary Chapter Review Questions

Chapter 5. Rules of the Road: How to Use the Local (Network) Roadway

LAN-Legal Data: An Ethernet Frame Driving Where I Want and When I Want Is Pretty Cool Why Wrecks (Collisions) Happen on Ethernet How to Avoid Most Wrecks What to Do When a Wreck Happens Are They Coming to Our House or the Neighbor’s House? Who Is It, Honey? I Don’t Understand a Thing You’re Saying

Preparing for a Trip: How to Make Your Car (Data) "Street Legal" Stopping at the Destination: What Happens When Someone Comes to See You Two Standards for Ethernet Chapter Summary Chapter Review Questions

Chapter 6. Reducing Congestion and Driving Faster on the Local (Network) Roadway

Hubs: A One-Lane Road Switches: How to Create Dozens of Lanes on the LAN The Perfect Roadway: No Wrecks Allowed! Using Full Duplex: Making the Streets Two Way Painting the Road Signs: Learning MAC Addresses The Forward Versus Filter Decision What to Do When the Road Sign (Address Table) Doesn’t List Your Destination How to Go Everywhere at the Same Time Summary of Switch Logic A New, Improved, and Faster Ethernet—Let—s Call It Fast Ethernet If Fast Ethernet Is Good, Even Faster Is Better: Gigabit Ethernet Ultra Super-Fast Fast Ethernet: 10 Gigabit Ethernet Summary of Ethernet Speeds A Switch for All Speeds

Reducing Congestion by Opening Up More Lanes on Each LAN Switches: The Rest of the Story I Feel the Need, the Need for Speed Chapter Summary Chapter Review Questions

Chapter 7. Adding Local (Network) Roadways for No Extra Money

Physical LANs: It’s All About Broadcasts Master of Your Own (Broadcast) Domain Multiple Physical LANs Require Multiple Switches How to Create a Virtual LAN Why You Need More Than One LAN If 100 Devices in a LAN Is Good, 1000 Devices Must Be Better OSI Layer 8 Issues OSI Layer 3 Design Goals Saving Cash How to Pack Your Trunk for the Trip to the Other Switch Tale of Two Trunking Protocols

The Physical Reality Precedes the Virtual Reality Virtual (LAN) Reality: One Switch, but Multiple LANs Packing Your VLAN's Frames in a Trunk When Leaving the Switch Chapter Summary Chapter Review Questions

Part III. Shipping and Logistics: Commerce Using the (Network) Roadways Chapter 8. Shipping Goods over a (Network) Roadway

Dropping Off and Getting Your (e)Mail Postal Address Versus E-Mail Address Rules, Schmools: Even More Rules? Protocols for Addressing the Envelope Correctly: Internet Message Formats The KISS Principle and SMTP What to Do When You Need a Little POP in Your Network SMTP and POP3 Working Together Warehouse Lingo and Procedures Rules, Schmools for FTP Rules, Schmools for Web Retailing Buy One, Get a Bunch for Free

Neither Rain, Nor Sleet, Nor Dark of Night: E-Mail Building a Centralized Warehouse: File Transfer Browsing Around the Internet Shopping Mall: The World Wide Web Chapter Summary Chapter Review Questions

Chapter 9. Choosing Shipping Options When Transporting the Goods over the (Network) Roadway

Full-Service Shipping Shipping Basics: Controlling Shipments Using Shipping Labels Purchasing Insurance for Your (Network) Shipment The Mechanics of Delivery Confirmation Lose All You Want—We’ll Make More Big Box, Small Truck—What Do You Do? Why Three Smaller Segments Is Better Than One Big Segment My Little White Lie About Acknowledgments Delivering the Package to the Right Person, Not Just the Right Address The Chicken, the Egg, and the Destination Port of the First Segment Starting Off on the Right Foot Using a TCP Connection

"Hello, I'm at Your Service" "Hello, I'm at Your Service" Chapter Summary Chapter Review Questions

Part IV. Navigating the Roadways to Find the Right Street Address Chapter 10. Delivering the Goods to the Right Street (IP) Address

IP as the Postmaster General of the Network Knowing the Address Before Driving to the Destination Putting a Name on the Shipping Label One Location, One Zip Code, One Network Number Three Sizes Fit All The Actual Class A, B, and C Network Numbers The Problem: Wasting IP Host Addresses The Solution: Subnetting Saves IP Host Addresses

Navigation Basics: Driving to the Right Destination How to Run a (Network) Postal Service Subdividing a Network into Subnets Chapter Summary Chapter Review Questions

Chapter 11. Knowing Where to Turn at Each Intersection (Router)

Overview of the End-to-End Routing Process Step 1: Leaving Your Neighborhood the Same Way, Every Time Getting into Your Car to Drive to Lunch Learning How to Go to the Default Post Office (Router) Summary of Step 1 Step 2: Choosing Which Road to Take at the First Intersection The Useful but Short Life of an Ethernet Frame Deciding Where to Go Next Yet Another Ethernet Data Link Frame Summary of Step 2 Step 3: Choosing Which Road to Take at the Final Intersection The Still Useful, but Still Short Life of an Ethernet Frame The Routing Table at R2: Same Destination, Different Forwarding Instructions Yet Another Short-Lived Ethernet Frame Routing with Subnets How to Drive When You Aren’t Leaving the Neighborhood (Subnet)

A Short Trip from Your House (PC) to the Local Store (Server) Other Rules of the Road Chapter Summary Chapter Review Questions

Chapter 12. Painting the Road Signs on Your Interstate (Internetwork)

Routing to Nearby Places Painting Road Signs and Other Long-Lasting Directions Dynamically Learning and Changing Routing Tables Picking the Best Road (Route) Introducing the Long List of Routing Protocols Chapter Summary Chapter Review Questions

Chapter 13. People Like Names, but Computers Like Numbers

Asking for Name Resolution Help Inside the Company Asking for Name Resolution Help Outside the Company How Names Should Be Formatted

Looking Up the Name and Number in the Phone Book (Host Table) Asking Someone Else to Look Up the Phone Number (IP Address) for You Chapter Summary Chapter Review Questions

Part V. Building an Interstate (Inter-LAN) Highway System Chapter 14. Leasing a (Network) Roadway Between Two Points

You Can’t Lease the Cross-Over Cable, So Lease Something Almost Just Like It It’s Not Really a 450-Mile Cable, but It Works Like One The Many Personalities of a WAN Link Differences Between a Cross-Over Cable and a Leased Circuit I Feel the Need, the Need for Speed The Need to Control the Speed Double Your Speed at No Cost A WAN Link Installation Plan You Can’t Just Send Data; You Have to Send a Frame Addressing on WAN Serial Links The Choice of Two Data Link Protocols

Leasing the Cable When You Can't Run the Cable Routers and WANs: A Match Made in Heaven Chapter Summary Chapter Review Questions

Chapter 15. Leasing a (Network) Roadway Between Lots of Places

Making the Telco Look Like One Big Whopping Switch Faster, Cheaper, Better—You Can't Go Wrong with Frame Relay Routers and WANs: Still a Match Made in Heaven Chapter Summary Chapter Review Questions

Chapter 16. Driving from Home onto the Globally Interconnected (Internet) Roadway

Making Data Sound Like Voice What Phones Do for Voice, Modems Do for Data How Fast Can You Talk? Now That I Know How to Talk, Whom Should I Call? Now That I Know Whom to Call, What Do I Say? Dr. Analog Voice and Mr. Hiding Digital Faster Is Better

Once on the Interstate (Internet), You Can Go Anywhere Using a Phone Line for Data Calling the Internet! Calling the Internet! Using the Phone Line for Data—the DSL Way Sending Data from Home Without Using a Phone Line Chapter Summary Chapter Review Questions

Part VI. Securing the Network Chapter 17. Accepting the Right People and Rejecting the Wrong People

Checking for Fake Drivers’ (Users’) Licenses Hey! How Did You Get in Here? Checking the License to Find Out if He Can Drive That Kind of Vehicle Tracking Drivers’ (Users’) Violations No Appls Yet? Be a Good CHAP and Ask PAP Stopping Someone from Using Your License (Password)

Safe Driving by Using AAA Making Sure (Internet) Drivers Have Valid Drivers' Licenses You're Wearing Your Credit Card Number on Your T-Shirt Chapter Summary Chapter Review Questions

Chapter 18. Keeping a Watchful Eye Over Who Drives into Your (Network) Neighborhood

Ways to Watch Your (Network) Neighborhood Deciding When to Stop the Traffic Safe Places Outside of Your Neighborhood (Network) Watching for Wolves in Sheep’s Clothing Avoiding Catching Cold Profiling What the Bad Guys Want to Do

Setting the Ground Rules Enforcing the Ground Rules Using the Police to Watch for Bad Guys Chapter Summary Chapter Review Questions

Part VII. Appendixes Appendix A. Answers to Chapter Review Questions Appendix B. Converting IP Addresses Between Decimal and Binary Glossary Index

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