CCNA Routing and Switching Portable Command Guide, 3rd Edition

Features

• The compact, convenient Cisco CCNA® command reference: every command your students will need to pass the latest CCNA® 200-120, ICND1 100-101, and ICND2 200-101 exams
• The only book containing all CCNA commands from the only official Cisco certification self-study publisher
• Covers TCP/IP, Cisco devices, routing, switching, wireless LANs, network administration, troubleshooting, IP service management, WANs, and network security
• Real-world scenarios to help students work more efficiently, and pass your exam the first time
• Perfect take-anywhere resource: no need for thick books or Web access

Here are all the CCNA-level Routing and Switching commands you need in one condensed, portable resource. The CCNA Routing and Switching Portable Command Guide, Third Edition, is filled with valuable, easy-to-access information and is portable enough for use whether you’re in the server room or the equipment closet.

The guide summarizes all CCNA certification-level Cisco IOS® Software commands, keywords, command arguments, and associated prompts, providing you with tips and examples of how to apply the commands to real-world scenarios. Configuration examples throughout the book provide you with a better understanding of how these commands are used in simple network designs.

This book has been completely updated to cover topics in the ICND1 100-101, ICND2 200-101, and CCNA 200-120 exams. Use this quick reference resource to help you memorize commands and concepts as you work to pass the CCNA Routing and Switching certification exam.

The book is organized into these parts:

• Part I TCP/IP v4

• Part II Introduction to Cisco Devices

• Part III Configuring a Router

• Part IV Routing

• Part V Switching

• Part VI Layer 3 Redundancy

• Part VII IPv6

• Part VIII Network Administration and Troubleshooting

• Part IX Managing IP Services

• Part X WANs

• Part XI Network Security

• Quick, offline access to all CCNA Routing and Switching commands for research and solutions
• Logical how-to topic groupings for a one-stop resource
• Great for review before CCNA Routing and Switching certification exams
• Compact size makes it easy to carry with you, wherever you go
• “Create Your Own Journal” section with blank, lined pages allows you to personalize the book for your needs
• “What Do You Want to Do?” chart inside back cover helps you to quickly reference specific tasks

Sample Pages

Download the sample pages (includes Chapter 3)

Table of Contents

    Introduction xx

Part I TCP/IP v4

CHAPTER 1 How to Subnet 1

    Class A–E Addresses 1

    Converting Between Decimal Numbers and Binary 2

    Subnetting a Class C Network Using Binary 2

    Subnetting a Class B Network Using Binary 5

    Binary ANDing 9

        So Why AND? 10

        Shortcuts in Binary ANDing 11

    The Enhanced Bob Maneuver for Subnetting (or How to Subnet Anything in Under a Minute) 12

CHAPTER 2 VLSM 15

    IP Subnet Zero 15

    VLSM Example 16

        Step 1 Determine How Many H Bits Will Be Needed to Satisfy the Largest Network 16

        Step 2 Pick a Subnet for the Largest Network to Use 17

        Step 3 Pick the Next Largest Network to Work With 18

        Step 4 Pick the Third Largest Network to Work With 20

        Step 5 Determine Network Numbers for Serial Links 21

CHAPTER 3 Route Summarization 25

    Example for Understanding Route Summarization 25

        Step 1: Summarize Winnipeg’s Routes 26

        Step 2: Summarize Calgary’s Routes 27

        Step 3: Summarize Edmonton’s Routes 27

        Step 4: Summarize Vancouver’s Routes 28

    Route Summarization and Route Flapping 30

    Requirements for Route Summarization 30

Part II Introduction to Cisco Devices

CHAPTER 4 Cables and Connections 31

    Connecting a Rollover Cable to Your Router or Switch 31

    Using a USB Cable to Connect to Your Router or Switch 31

    Terminal Settings 32

    LAN Connections 33

    Serial Cable Types 33

    Which Cable to Use? 35

    568A Versus 568B Cables 35

CHAPTER 5 The Command Line Interface 37

    Shortcuts for Entering Commands 37

    Using the † Key to Complete Commands 37

    Console Error Messages 38

    Using the Question Mark for Help 38

    enable Command 39

    exit Command 39

    disable Command 39

    logout Command 39

    Setup Mode 39

    Keyboard Help 40

Errata

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