Wendell Odom, CCIE No. 1624 Emeritus, has been in the networking industry since 1981. He has worked as a network engineer, consultant, systems engineer, instructor, and course developer; he currently works writing and creating certification study tools. This book is his 28th edition of some product for Pearson, and he is the author of all editions of the CCNA Cert Guides about Routing and Switching from Cisco Press. He has written books about topics from networking basics, certification guides throughout the years for CCENT, CCNA R&S, CCNA DC, CCNP ROUTE, CCNP QoS, and CCIE R&S. He maintains study tools, links to his blogs, and other resources at [...]

Introduction

Your Study Plan

Part I Introduction to Networking

Chapter 1 Introduction to TCP/IP Networking

Do I Know This Already? Quiz

Foundation Topics

Perspectives on Networking

TCP/IP Networking Model

History Leading to TCP/IP

Overview of the TCP/IP Networking Model

TCP/IP Application Layer

TCP/IP Transport Layer

TCP/IP Network Layer

TCP/IP Data-Link and Physical Layers

Data Encapsulation Terminology

Names of TCP/IP Messages

OSI Networking Model and Terminology

Chapter Review

Chapter 2 Fundamentals of Ethernet LANs

Do I Know This Already? Quiz

Foundation Topics

An Overview of LANs

Typical SOHO LANs

Typical Enterprise LANs

The Variety of Ethernet Physical Layer Standards

Consistent Behavior over All Links Using the Ethernet Data-Link Layer

Building Physical Ethernet LANs with UTP

Transmitting Data Using Twisted Pairs

Breaking Down a UTP Ethernet Link

UTP Cabling Pinouts for 10BASE-T and 100BASE-T

UTP Cabling Pinouts for 1000BASE-T

Building Physical Ethernet LANs with Fiber

Fiber Cabling Transmission Concepts

Using Fiber with Ethernet

Sending Data in Ethernet Networks

Ethernet Data-Link Protocols

Sending Ethernet Frames with Switches and Hubs

Chapter Review

Chapter 3 Fundamentals of WANs and IP Routing

Do I Know This Already? Quiz

Foundation Topics

Wide-Area Networks

Leased-Line WANs

Ethernet as a WAN Technology

IP Routing

Network Layer Routing (Forwarding) Logic

How Network Layer Routing Uses LANs and WANs

How IP Addressing Helps IP Routing

How IP Routing Protocols Help IP Routing

Other Network Layer Features

Using Names and the Domain Name System

The Address Resolution Protocol

ICMP Echo and the ping Command

Chapter Review

Part I Review

Part II Implementing Ethernet LANs

Chapter 4 Using the Command-Line Interface

Do I Know This Already? Quiz

Foundation Topics

Accessing the Cisco Catalyst Switch CLI

Cisco Catalyst Switches

Accessing the Cisco IOS CLI

CLI Help Features

The debug and show Commands

Configuring Cisco IOS Software

Configuration Submodes and Contexts

Storing Switch Configuration Files

Copying and Erasing Configuration Files

Chapter Review

Chapter 5 Analyzing Ethernet LAN Switching

Do I Know This Already? Quiz

Foundation Topics

LAN Switching Concepts

Overview of Switching Logic

Forwarding Known Unicast Frames

Learning MAC Addresses

Flooding Unknown Unicast and Broadcast Frames

Avoiding Loops Using Spanning Tree Protocol

LAN Switching Summary

Verifying and Analyzing Ethernet Switching

Demonstrating MAC Learning

Switch Interfaces

Finding Entries in the MAC Address Table

Managing the MAC Address Table (Aging, Clearing)

MAC Address Tables with Multiple Switches

Chapter Review

Chapter 6 Configuring Basic Switch Management

Do I Know This Already? Quiz

Foundation Topics

Securing the Switch CLI

Securing User Mode and Privileged Mode with Simple Passwords

Securing User Mode Access with Local Usernames and Passwords

Securing User Mode Access with External Authentication Servers

Securing Remote Access with Secure Shell

Enabling IPv4 for Remote Access

Host and Switch IP Settings

Configuring IPv4 on a Switch

Configuring a Switch to Learn Its IP Address with DHCP

Verifying IPv4 on a Switch

Miscellaneous Settings Useful in the Lab

History Buffer Commands

The logging synchronous, exec-timeout, and no ip domain-lookup Commands

Chapter Review

Chapter 7 Configuring and Verifying Switch Interfaces

Do I Know This Already? Quiz

Foundation Topics

Configuring Switch Interfaces

Configuring Speed, Duplex, and Description

Configuring Multiple Interfaces with the interface range Command

Administratively Controlling Interface State with shutdown

Removing Configuration with the no Command

Autonegotiation

Analyzing Switch Interface Status and Statistics

Interface Status Codes and Reasons for Nonworking States

Interface Speed and Duplex Issues

Common Layer 1 Problems on Working Interfaces

Chapter Review

Part II Review

Part III Implementing VLANs and STP

Chapter 8 Implementing Ethernet Virtual LANs

Do I Know This Already? Quiz

Foundation Topics

Virtual LAN Concepts

Creating Multiswitch VLANs Using Trunking

Forwarding Data Between VLANs

VLAN and VLAN Trunking Configuration and Verification

Creating VLANs and Assigning Access VLANs to an Interface

VLAN Trunking Protocol

VLAN Trunking Configuration

Implementing Interfaces Connected to Phones

Troubleshooting VLANs and VLAN Trunks

Access VLANs Undefined or Disabled

Mismatched Trunking Operational States

The Supported VLAN List on Trunks

Mismatched Native VLAN on a Trunk

Chapter Review

Chapter 9 Spanning Tree Protocol Concepts

Do I Know This Already? Quiz

Foundation Topics

STP and RSTP Basics

The Need for Spanning Tree

What Spanning Tree Does

How Spanning Tree Works

Configuring to Influence the STP Topology

Details Specific to STP (and Not RSTP)

STP Activity When the Network Remains Stable

STP Timers That Manage STP Convergence

Changing Interface States with STP

Rapid STP Concepts

Comparing STP and RSTP

RSTP and the Alternate (Root) Port Role

RSTP States and Processes

RSTP and the Backup (Designated) Port Role

RSTP Port Types

Optional STP Features

Chapter Review

Chapter 10 RSTP and EtherChannel Configuration

Do I Know This Already? Quiz

Foundation Topics

Understanding RSTP Through Configuration

The Need for Multiple Spanning Trees

STP Modes and Standards

The Bridge ID and System ID Extension

How Switches Use the Priority and System ID Extension

RSTP Methods to Support Multiple Spanning Trees

Other RSTP Configuration Options

Configuring Layer 2 EtherChannel

Configuring a Manual Layer 2 EtherChannel

Configuring Dynamic EtherChannels

Physical Interface Configuration and EtherChannels

EtherChannel Load Distribution

Chapter Review

Part III Review

Part IV IPv4 Addressing

Chapter 11 Perspectives on IPv4 Subnetting

Do I Know This Already? Quiz

Foundation Topics

Introduction to Subnetting

Subnetting Defined Through a Simple Example

Operational View Versus Design View of Subnetting

Analyze Subnetting and Addressing Needs

Rules About Which Hosts Are in Which Subnet

Determining the Number of Subnets

Determining the Number of Hosts per Subnet

One Size Subnet Fits AllOr Not

Make Design Choices

Choose a Classful Network

Choose the Mask

Build a List of All Subnets

Plan the Implementation

Assigning Subnets to Different Locations

Choose Static and Dynamic Ranges per Subnet

Chapter Review

Chapter 12 Analyzing Classful IPv4 Networks

Do I Know This Already? Quiz

Foundation Topics

Classful Network Concepts

IPv4 Network Classes and Related Facts

Number of Hosts per Network

Deriving the Network ID and Related Numbers

Unusual Network IDs and Network Broadcast Addresses

Practice with Classful Networks

Practice Deriving Key Facts Based on an IP Address

Practice Remembering the Details of Address Classes

Chapter Review

Chapter 13 Analyzing Subnet Masks

Do I Know This Already? Quiz

Foundation Topics

Subnet Mask Conversion

Three Mask Formats

Converting Between Binary and Prefix Masks

Converting Between Binary and DDN Masks

Converting Between Prefix and DDN Masks

Practice Converting Subnet Masks

Identifying Subnet Design Choices Using Masks

Masks Divide the Subnet's Addresses into Two Parts

Masks and Class Divide Addresses into Three Parts

Classless and Classful Addressing

Calculations Based on the IPv4 Address Format

Practice Analyzing Subnet Masks

Chapter Review

Chapter 14 Analyzing Existing Subnets

Do I Know This Already? Quiz

Foundation Topics

Defining a Subnet

An Example with Network 172.16.0.0 and Four Subnets

Subnet ID Concepts

Subnet Broadcast Address

Range of Usable Addresses

Analyzing Existing Subnets: Binary

Finding the Subnet ID: Binary

Finding the Subnet Broadcast Address: Binary

Binary Practice Problems

Shortcut for the Binary Process

Brief Note About Boolean Math

Finding the Range of Addresses

Analyzing Existing Subnets: Decimal

Analysis with Easy Masks

Predictability in the Interesting Octet

Finding the Subnet ID: Difficult Masks

Finding the Subnet Broadcast Address: Difficult Masks

Practice Analyzing Existing Subnets

A Choice: Memorize or Calculate

Chapter Review

Part IV Review

Part V IPv4 Routing

Chapter 15 Operating Cisco...