LAN Switching and Wireless : CCNA Exploration Companion Guide

by Lewis, Wayne

Edition:

1st

ISBN13:

9781587132070

ISBN10:

1587132079

Format:

Hardcover w/CD

Pub. Date:

1/1/2008

Publisher(s):

Cisco Press

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Summary

LAN Switching and Wireless CCNA Exploration Companion Guide Wayne Lewis, Ph.D. LAN Switching and Wireless, CCNA Exploration Companion Guideis the official supplemental textbook for the LAN Switching and Wireless course in the Cisco Networking Academy CCNAreg; Exploration curriculum version 4. This course provides a comprehensive approach to learning the technologies and protocols needed to design and implement a converged switched network. The Companion Guide, written and edited by a Networking Academy instructor, is designed as a portable desk reference to use anytime, anywhere. The bookrs"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 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 all-new comprehensive glossary with more than 190 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. Wayne Lewis is the Cisco Academy Manager for the Pacific Center for Advanced Technology Training (PCATT), based at Honolulu Community College. How To: Look for this icon to study the steps that 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 LAN Switching and Wireless course: LAN Switching and Wireless, CCNA Exploration Labs and Study Guide ISBN-10: 1-58713-202-8 ISBN-13: 978-1-58713-202-5 Companion CD-ROM The CD-ROM provides many useful tools and information to support your education: Packet Tracer Activity exercise files A Guide to Using a Networkerrs"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 Pressreg;. Books in this series support and complement the Cisco Networking online curriculum.

Author Biography

Wayne Lewis is the Cisco Academy Manager for the Pacific Center for Advanced Technology Training (PCATT), based at Honolulu Community College (HonCC), and the Legal Main Contact for the CCNA/CCNP/Network Security Cisco Academy Training Center at PCATT/HonCC.

LAN Design	p. 1
Objectives	p. 1
Key Terms	p. 1
Switched LAN Architecture	p. 2
The Hierarchical Network Model	p. 2
Access Layer	p. 2
Distribution Layer	p. 3
Core Layer	p. 3
A Hierarchical Network in a Medium-Sized Business	p. 4
Benefits of a Hierarchical Network	p. 4
Principles of Hierarchical Network Design	p. 6
Network Diameter	p. 7
Bandwidth Aggregation	p. 8
Redundancy	p. 9
What Is a Converged Network?	p. 10
Legacy Equipment	p. 10
Advanced Technology	p. 11
New Options	p. 12
Separate Voice, Video, and Data Networks	p. 13
Matching Switches to Specific LAN Functions	p. 15
Considerations for Hierarchical Network Switches	p. 15
Traffic Flow Analysis	p. 15
User Community Analysis	p. 17
Data Stores and Data Servers Analysis	p. 19
Topology Diagrams	p. 20
Switch Features	p. 22
Switch Form Factors	p. 22
Switch Performance	p. 24
Power over Ethernet and Layer 3 Functionality	p. 26
Switch Features in a Hierarchical Network	p. 28
Access Layer Switch Features	p. 28
Distribution Layer Switch Features	p. 30
Core Layer Switch Features	p. 31
Switches for Small and Medium Sized Business (SMB)	p. 33
Catalyst Express 500	p. 33
Catalyst 2960	p. 34
Catalyst 3560	p. 35
Catalyst 3750	p. 36
Catalyst 4500	p. 36
Catalyst 4900	p. 37
Catalyst 6500	p. 38
Comparing Switches	p. 39
Summary	p. 40
Labs	p. 40
Check Your Understanding	p. 41
Challenge Questions and Activities	p. 44
Basic Switch Concepts and Configuration	p. 45
Objectives	p. 45
Key Terms	p. 45
Introduction to Ethernet/802.3 LANs	p. 46
Key Elements of Ethernet/802.3 Networks	p. 46
CSMA/CD	p. 46
Ethernet Communications	p. 47
Duplex Settings	p. 49
Switch Port Settings	p. 50
Switch MAC Address Table	p. 51
Design Considerations for Ethernet/802.3 Networks	p. 52
Bandwidth and Throughput	p. 52
Collision Domains	p. 53
Broadcast Domains	p. 54
Network Latency	p. 54
Network Congestion	p. 55
LAN Segmentation	p. 55
LAN Design Considerations	p. 56
Forwarding Frames Using a Switch	p. 58
Switch Forwarding Methods	p. 59
Symmetric and Asymmetric Switching	p. 60
Memory Buffering	p. 60
Layer 2 and Layer 3 Switching	p. 62
Switch Management Configuration	p. 63
Navigating Command-Line Interface Modes	p. 63
GUI-Based Alternatives to the CLI	p. 65
Using the Help Facility	p. 68
Accessing the Command History	p. 70
Switch Boot Sequence	p. 71
Prepare to Configure the Switch	p. 72
Basic Switch Configuration	p. 72
Management Interface	p. 73
Default Gateway	p. 74
Duplex and Speed	p. 75
HTTP Access	p. 76
MAC Address Table Management	p. 77
Verifying Switch Configuration	p. 78
Basic Switch Management	p. 80
Backing Up and Restoring Switch Configuration Files	p. 80
Using a TFTP Server with Switch Configuration Files	p. 82
Clearing Switch Configuration Information	p. 84
Configuring Switch Security	p. 85
Configuring Password Options	p. 85
Securing Console Access	p. 85
Securing Virtual Terminal Access	p. 87
Securing Privileged EXEC Access	p. 88
Encrypting Switch Passwords	p. 89
Password Recovery	p. 90
Login Banners	p. 92
Configure Telnet and SSH	p. 93
Configuring Telnet	p. 93
Configuring SSH	p. 94
Common Security Attacks	p. 96
MAC Address Flooding	p. 96
Spoofing Attacks	p. 100
CDP Attacks	p. 101
Telnet Attacks	p. 102
Security Tools	p. 103
Configuring Port Security	p. 105
Securing Unused Ports	p. 110
Summary	p. 111
Labs	p. 111
Check Your Understanding	p. 112
Challenge Questions and Activities	p. 117
VLANs	p. 121
Objectives
Table of Contents provided by Publisher. All Rights Reserved.

Excerpts

Introduction IntroductionThe Cisco Networking Academy is a comprehensive e-learning program that provides students with Internet technology skills. A Networking Academy delivers web-based content, online assessment, student performance tracking, and hands-on labs to prepare students for industry-standard certifications. The CCNA curriculum includes four courses oriented around the topics on the Cisco Certified Network Associate (CCNA) certification.LAN Switching and Wireless, CCNA Exploration Companion Guideis the official supplement textbook to be used with v4 of the CCNA Exploration LAN Switching and Wireless online curriculum of the Networking Academy.This book goes beyond earlier editions of the Cisco Press Companion Guides by providing many alternative explanations and examples as compared with the course. You can use the online curriculum as normal and use this companion guide to help solidify your understanding of all the topics through the alternative examples.The basis for this book, as well as the online curriculum, is to provide the reader with a thorough understanding of LAN switching and wireless technologies beyond that necessary for the CCNA certification exam. The commands and web-based GUI utilities for configuring LAN switching and wireless are not very difficult. The challenge is to understand the operation of these technologies and protocols and their role in the network.The objective of this book is to explain LAN switching and wireless technologies. Every concept is methodically explained with no assumptions made of the reader's knowledge of LAN switching or wireless technologies. The only exceptions are if a concept is beyond the scope of this course or is covered in CCNP, and then it is noted within the text.Readers are encouraged to peruse the resources managed by Wayne Lewis at cisco.honolulu.hawaii.edu. Please e-mail Wayne Lewis at waynel@hawaii.edu for more information about CCNP and network security instructor training and for access to more resources for this course and other CCNP, IP telephony, QoS, and network security courses. Goal of This BookFirst and foremost, by providing a fresh, complementary perspective on the content, this book is intended to help you learn all the required materials of the LAN Switching and Wireless course in the Networking Academy CCNA Exploration curriculum. As a secondary goal, the text is intended as a mobile replacement for the online curriculum for individuals who do not always have Internet access. In those cases, you can instead read the appropriate sections of the book, as directed by your instructor, and learn the same material that is covered in the online curriculum. Another secondary goal is to serve as your offline study material to prepare for the CCNA exam. Audience for This BookThis book's main audience is anyone taking the CCNA Exploration LAN Switching and Wireless course of the Cisco Networking Academy curriculum. Many Academies use this textbook as a required tool in the course, and other Academies recommend the Companion Guides as an additional source of study and practice materials. Book FeaturesThe educational features of this book focus on supporting topic coverage, readability, and practice of the course material to facilitate your full understanding of the course material. Topic CoverageThe following features give you a thorough overview of the topics covered in each chapter so that you can make constructive use of your study time:Objectives:Listed at the beginning of each chapter, the objectives reference the core concepts covered in the chapter. The objectives match the objectives stated in the corresponding chapters of the online curriculum; however, the question format in the Companion Guide encourages you to think about finding the answers as you r