Understanding Cisco Networking Technologies

Leading Cisco authority Todd Lammle helps you gain insights into the new core Cisco network technologies
 
Understanding Cisco Networking Technologies is an important resource for those preparing for the new Cisco Certified Network Associate (CCNA) certification exam as well as IT professionals looking to understand Cisco's latest networking products, services, and technologies. Written by bestselling author and internationally recognized Cisco expert Todd Lammle, this in-depth guide provides the fundamental knowledge required to implement and administer a broad range of modern networking and IT infrastructure.
 
Cisco is the worldwide leader in network technologies--80% of the routers on the Internet are Cisco. This authoritative book provides you with a solid foundation in Cisco networking, enabling you to apply your technical knowledge to real-world tasks. Clear and accurate chapters cover topics including routers, switches, controllers and other network components, physical interface and cabling, IPv6 addressing, discovery protocols, wireless infrastructure, security features and encryption protocols, controller-based and software-defined architectures, and more. After reading this essential guide, you will understand:
* Network fundamentals
* Network access
* IP connectivity and IP services
* Security fundamentals
* Automation and programmability
 
Understanding Cisco Networking Technologies is a must-read for anyone preparing for the new CCNA certification or looking to gain a primary understanding of key Cisco networking technologies.

List of contents

Introduction xvii
 
Chapter 1 Internetworking 1
 
Internetworking Basics 2
 
Internetworking Models 10
 
The Layered Approach 11
 
Advantages of Reference Models 12
 
The OSI Reference Model 12
 
The Application Layer 14
 
The Presentation Layer 15
 
The Session Layer 16
 
The Transport Layer 16
 
The Network Layer 21
 
The Data Link Layer 23
 
The Physical Layer 26
 
Summary 29
 
Chapter 2 Ethernet Networking and Data Encapsulation 31
 
Ethernet Networks in Review 32
 
Collision Domain 32
 
Broadcast Domain 34
 
CSMA/CD 35
 
Half- and Full-Duplex Ethernet 36
 
Ethernet at the Data Link Layer 38
 
Ethernet at the Physical Layer 45
 
Ethernet Cabling 48
 
Straight-Through Cable 49
 
Crossover Cable 49
 
Rolled Cable 51
 
Fiber Optic 53
 
Data Encapsulation 55
 
The Cisco Three-Layer Hierarchical Model 59
 
The Core Layer 60
 
The Distribution Layer 60
 
The Access Layer 61
 
Summary 61
 
Chapter 3 Introduction to TCP/IP 63
 
Introducing TCP/IP 64
 
A Brief History of TCP/IP 64
 
TCP/IP and the DoD Model 65
 
The Process/Application Layer Protocols 66
 
The Host-to-Host or Transport Layer Protocols 76
 
The Internet Layer Protocols 85
 
IP Addressing 93
 
IP Terminology 94
 
The Hierarchical IP Addressing Scheme 94
 
Private IP Addresses (RFC 1918) 99
 
IPv4 Address Types 101
 
Layer 2 Broadcasts 101
 
Layer 3 Broadcasts 102
 
Unicast Address 102
 
Multicast Address 103
 
Summary 104
 
Chapter 4 Easy Subnetting 105
 
Subnetting Basics 106
 
How to Create Subnets 107
 
Subnet Masks 108
 
Classless Inter-Domain Routing (CIDR) 109
 
IP Subnet-Zero 111
 
Subnetting Class C Addresses 112
 
Subnetting Class B Addresses 123
 
Summary 131
 
Chapter 5 Troubleshooting IP Addressing 133
 
Cisco's Way of Troubleshooting IP 134
 
Determining IP Address Problems 137
 
Summary 141
 
Chapter 6 Cisco's Internetworking Operating System (IOS) 143
 
The IOS User Interface 144
 
Cisco IOS 144
 
Connecting to a Cisco IOS Device 145
 
Bringing Up a Switch 147
 
Command-Line Interface (CLI) 147
 
Entering the CLI 148
 
Overview of Router Modes 148
 
CLI Prompts 149
 
Editing and Help Features 151
 
Administrative Configurations 156
 
Hostnames 157
 
Banners 157
 
Setting Passwords 159
 
Encrypting Your Passwords 165
 
Descriptions 166
 
Router and Switch Interfaces 169
 
Bringing Up an Interface 172
 
Viewing, Saving, and Erasing Configurations 177
 
Deleting the Configuration and Reloading the Device 179
 
Verifying Your Configuration 179
 
Summary 192
 
Chapter 7 Managing a Cisco Internetwork 193
 
The Internal Components of a Cisco Router and Switch 194
 
The Router and Switch Boot Sequence 195
 
Backing Up and Restoring the Cisco Configuration 196
 
Backing Up the Cisco Configuration 197
 
Restoring the Cisco Configuration 199
 
Erasing the Configuration 199
 
Configuring DHCP 200
 
DHCP Relay 202
 
Verifying DHCP on Cisco IOS 202
 
Using Telnet 203
 
Telnetting into Multiple Devices Simultaneously 205

About the author

TODD LAMMLE, Cisco certified in almost every category, is the authority on Cisco networking and certification. His three decades of real-world experience is prevalent in his writing. He is an experienced networking engineer with very practical experience working on the largest bounded and unbounded networks in the world at such companies as Xerox, Hughes Aircraft, Texaco, AAA, Cisco, and Toshiba, among many others. Todd has published over 60 books, including the very popular and bestselling CCNA Cisco Certified Network Associate Study Guide and Cisco Firepower NGIPS. Todd runs an international training company from Texas, and a large-scale consulting business out of Colorado. You can reach Todd through his web site at www.lammle.com/ccna.

Summary

Leading Cisco authority Todd Lammle helps you gain insights into the new core Cisco network technologies

Understanding Cisco Networking Technologies is an important resource for those preparing for the new Cisco Certified Network Associate (CCNA) certification exam as well as IT professionals looking to understand Cisco's latest networking products, services, and technologies. Written by bestselling author and internationally recognized Cisco expert Todd Lammle, this in-depth guide provides the fundamental knowledge required to implement and administer a broad range of modern networking and IT infrastructure.

Cisco is the worldwide leader in network technologies--80% of the routers on the Internet are Cisco. This authoritative book provides you with a solid foundation in Cisco networking, enabling you to apply your technical knowledge to real-world tasks. Clear and accurate chapters cover topics including routers, switches, controllers and other network components, physical interface and cabling, IPv6 addressing, discovery protocols, wireless infrastructure, security features and encryption protocols, controller-based and software-defined architectures, and more. After reading this essential guide, you will understand:
* Network fundamentals
* Network access
* IP connectivity and IP services
* Security fundamentals
* Automation and programmability

Understanding Cisco Networking Technologies is a must-read for anyone preparing for the new CCNA certification or looking to gain a primary understanding of key Cisco networking technologies.

Product details

• Authors: T Lammle, Todd Lammle, Lammle Todd
• Publisher: Sybex Uitgeverij
• Languages: English
• Product format: Paperback / Softback
• Release: 31.12.2019, delayed
• EAN: 9781119659020
• ISBN: 978-1-119-65902-0
• No. of pages: 696
• Subjects: Guides > Self-help, everyday life > Family; Humanities, art, music > Education; Natural sciences, medicine, IT, technology > IT, data processing; Prüfungsvorbereitung, Zertifizierung, Cisco, test prep, Zertifizierung Cisco, Cisco Certification