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Routing Protocols and Concepts: CCNA Exploration Companion Guide

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Routing Protocols and Concepts: CCNA Exploration Companion Guide

By Rick Graziani, Allan Johnson
Published Jan 9, 2012 by Cisco Press.

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Description

Sample Content

Updates

Features

Chapter objectives—Review core concepts by answering the focus questions listed at the beginning of each chapter.
Key terms—Refer to the updated lists of networking vocabulary introduced and turn to the highlighted terms in context in each chapter.
Glossary—Consult the comprehensive glossary with more than 150 terms.
Check Your Understanding questions and answer key—Evaluate your readiness with the updated end-of-chapter questions that match the style of questions you see on the online course quizzes. The answer key explains each answer.
Challenge questions and activities—Strive to ace more challenging review questions and activities designed to prepare you for the complex styles of questions you might see on the CCNA exam. The answer key explains each answer.
Each new purchase of an Exploration Companion guide comes with an exclusive coupon code that can be used to Save 65% on these two additional study resources:
1. CCNA Portable Command Guide, 2nd Ed, eBook (www.ciscopress.com/title/0132965739)

2. Routing Protocols and Concepts Companion Guide eBook (www.ciscopress.com/title/0132877538)

Copyright 2012
Edition: 1st

Book
ISBN-10: 1-58713-272-9
ISBN-13: 978-1-58713-272-8

Each new purchase of an Exploration Companion guide comes with an exclusive coupon code that can be used to Save 65% on these two additional study resources:

1. CCNA Portable Command Guide, 2nd Ed, eBook (www.ciscopress.com/title/0132965739)

2. Routing Protocols and Concepts Companion Guide eBook (www.ciscopress.com/title/0132877538)

Routing Protocols and Concepts, CCNA Exploration Companion Guide is the official supplemental textbook for the Routing Protocols and Concepts course in the Cisco Networking Academy® CCNA® Exploration curriculum version 4. This course describes the architecture, components, and operation of routers, and explains the principles of routing and the primary routing protocols. The Companion Guide, written and edited by Networking Academy instructors, is designed as a portable desk reference to use anytime, anywhere. The book’s features reinforce the material in the course to help you focus on important concepts and organize your study time for exams.

New and improved features help you study and succeed in this course:

Chapter objectives—Review core concepts by answering the focus questions listed at the beginning of each chapter.
Key terms—Refer to the updated lists of networking vocabulary introduced and turn to the highlighted terms in context in each chapter.
Glossary—Consult the comprehensive glossary with more than 150 terms.
Check Your Understanding questions and answer key—Evaluate your readiness with the updated end-of-chapter questions that match the style of questions you see on the online course quizzes. The answer key explains each answer.
Challenge questions and activities—Strive to ace more challenging review questions and activities designed to prepare you for the complex styles of questions you might see on the CCNA exam. The answer key explains each answer.

Rick Graziani has been a computer science and networking instructor at Cabrillo College since 1994.

Allan Johnson works full time developing curriculum for Cisco Networking Academy. Allan also is a part-time instructor at Del Mar College in Corpus Christi, Texas.

How To—Look for this icon to study the steps you need to learn to perform certain tasks.

Packet Tracer Activities— Explore networking concepts in activities interspersed throughout some chapters using

Packet Tracer v4.1 developed by Cisco®. The files for these activities are on the accompanying CD-ROM.

Also available for the Routing Protocols and Concepts Course:

Routing Protocols and Concepts

CCNA Exploration

Labs and Study Guide

ISBN-10: 1-58713-204-4

ISBN-13: 978-1-58713-204-9

Companion CD-ROM

The CD-ROM provides many useful tools and information to support your education:

Packet Tracer Activity exercise files v4.1

A Guide to Using a Networker’s Journal booklet
Taking Notes: a .txt file of the chapter objectives

More IT Career Information
Tips on Lifelong Learning in Networking

This book is part of the Cisco Networking Academy Series from Cisco Press®. The products in this series support and complement the Cisco Networking Academy online curriculum.

Introduction

Chapter 1 Introduction to Routing and Packet Forwarding

Objectives

Key Terms

Inside the Router

Routers Are Computers

Routers Are at the Network Center

Routers Determine the Best Path

Router CPU and Memory

CPU

RAM

ROM

Flash Memory

NVRAM

Internetwork Operating System (IOS)

Router Bootup Process

Bootup Process

Command-Line Interface

Verifying Router Bootup Process

IOS Version

ROM Bootstrap Program

Location of IOS

CPU and Amount of RAM

Interfaces

Amount of NVRAM

Amount of Flash

Configuration Register

Router Ports and Interfaces

Management Ports

Router Interfaces

Interfaces Belong to Different Networks

Example of Router Interfaces

Routers and the Network Layer

Routing Is Forwarding Packets

Routers Operate at Layers 1, 2, and 3

CLI Configuration and Addressing

Implementing Basic Addressing Schemes

Populating an Address Table

Basic Router Configuration

Host Name and Passwords

Configuring a Banner

Router Interface Configuration

Each Interface Belongs to a Different Network

Verifying Basic Router Configuration

Building the Routing Table

Introducing the Routing Table

show ip route Command

Directly Connected Networks

Static Routing

When to Use Static Routes

Dynamic Routing

Automatic Network Discovery

Maintaining Routing Tables

IP Routing Protocols

Routing Table Principles

Asymmetric Routing

Path Determination and Switching Functions

Packet Fields and Frame Fields

Internet Protocol (IP) Packet Format

MAC Layer Frame Format

Best Path and Metrics

Best Path

Comparing Hop Count and Bandwidth Metrics

Equal-Cost Load Balancing

Equal-Cost Paths Versus Unequal-Cost Paths

Path Determination

Switching Function

Path Determination and Switching Function Details

Path Determination and Switching Function Summary

Summary

Labs

Check Your Understanding

Challenge Questions and Activities

To Learn More

End Notes

Chapter 2 Static Routing

Objectives

Key Terms

Routers and the Network

Role of the Router

Introducing the Topology

Examining the Connections of the Router

Router Connections

Serial Connectors

Ethernet Connectors

Router Configuration Review

Examining Router Interfaces

Interfaces and Their Statuses

Additional Commands for Examining Interface Status

Configuring an Ethernet Interface

Unsolicited Messages from IOS

Reading the Routing Table

Routers Usually Store Network Addresses

Verifying Ethernet Addresses

Commands to Verify Interface Configuration

Ethernet Interfaces Participate in ARP

Configuring a Serial Interface

Examining Serial Interfaces

Physically Connecting a WAN Interface

Configuring Serial Links in a Lab Environment

Verifying the Serial Interface Configuration

Exploring Directly Connected Networks

Verifying Changes to the Routing Table

Routing Table Concepts

Observing Routes as They Are Added to the Routing Table

Changing an IP Address

Devices on Directly Connected Networks

Accessing Devices on Directly Connected Networks

Pings from R2 to 172.16.3.1

Pings from R2 to 192.168.1.1

Cisco Discovery Protocol (CDP)

Network Discovery with CDP

Layer 3 Neighbors

Layer 2 Neighbors

CDP Operation

Using CDP for Network Discovery

CDP show Commands

Disabling CDP

Static Routes with “Next-Hop” Addresses

Purpose and Command Syntax of the ip route Command

ip route Command

Configuring Static Routes

Verifying the Static Route

Configuring Routes to Two More Remote Networks

Routing Table Principles and Static Routes

Applying the Principles

Resolving to an Exit Interface with a Recursive Route Lookup

Exit Interface Is Down

Static Routes with Exit Interfaces

Configuring a Static Route with an Exit Interface

Static Route and an Exit Interface

Static Routes and Point-to-Point Networks

Modifying Static Routes

Verifying the Static Route Configuration

Verifying Static Route Changes

Static Routes with Ethernet Interfaces

Ethernet Interfaces and ARP

Sending an ARP Request

Static Routes and Ethernet Exit Interfaces

Advantages of Using an Exit Interface with Static Routes

Summary and Default Static Routes

Summary Static Routes

Summarizing Routes to Reduce the Size of the Routing Table

Route Summarization

Calculating a Summary Route

Configuring a Summary Route

Default Static Route

Most Specific Match

Configuring a Default Static Route

Verifying a Default Static Route

Managing and Troubleshooting Static Routes

Static Routes and Packet Forwarding

Troubleshooting a Missing Route

Solving the Missing Route

Summary

Labs

Check Your Understanding

Challenge Questions and Activities

To Learn More

Floating Static Routes

Discard Route

Errata

Download the errata

Submit Errata

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