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- Wiley
More About This Title Cisco Networking Essentials
English
As the world leader of networking products and services, Cisco products are constantly growing in demand. Yet, few books are aimed at those who are beginning a career in IT--until now. Cisco Networking Essentials provides a solid foundation on the Cisco networking products and services with thorough coverage of fundamental networking concepts. Author Troy McMillan applies his years of classroom instruction to effectively present high-level topics in easy-to-understand terms for beginners. With this indispensable full-color resource, you'll quickly learn the concepts, processes, and skills that are essential to administer Cisco routers and switches.
Begins with a clear breakdown of what you can expect to learn in each chapter, followed by a straightforward discussion of concepts on core topicsIncludes suggested labs and review questions at the conclusion of each chapter, which encourage you to reinforce and measure your understanding of the topics discussedServes as an ideal starting point for learning Cisco networking products and servicesIf you are interested in a career in IT but have little or no knowledge of networking and are new to Cisco networking products, then this book is for you.
English
Troy McMillan holds more than 30 IT certifications, including CCNA and CCNP. He is a product developer and technical editor for Kaplan IT, Inc. He is also a full-time trainer, teaching classes on Cisco, Microsoft, CompTIA, and wireless.
English
Chapter 1 Networks 1
Describing Network Components 1
Defining the Benefits of Networks 2
Identifying the Requirements for a Network 5
Classifying Networks by Function 8
Understanding LANs 8
Understanding WANs 9
Defining Network Architectures 11
Understanding Peer-to-Peer Networks 11
Understanding Client-Server Networks 14
The Essentials and Beyond 17
Chapter 2 The OSI Model 19
Using Reference Models 19
Understanding the Benefits of Reference 20
Exploring Reference Model Examples 21
Introducing the Layers of the OSI Model 22
Understanding the Application Layer 23
Understanding the Presentation Layer 23
Understanding the Session Layer 25
Understanding the Transport Layer 26
Understanding the Network Layer 29
Understanding the Data-Link Layer 30
Understanding the Physical Layer 32
Describing the OSI Encapsulation Process 32
Identifying the Process on the Source Device 33
Identifying the Process on the Destination Device 34
The Essentials and Beyond 35
Chapter 3 TCP/IP 37
Understanding the TCP/IP Model 38
Exploring the Four Layers 39
Comparing the OSI and TCP/IP Models 42
Describing the TCP/IP Encapsulation Process 44
Understanding Data and PDUs 44
Describing the Contents of Data 45
Describing the Contents of Segments 45
Describing the Contents of Packets 46
Describing the Contents of Frames 46
Understanding the Conversion to Bits 47
Describing the Functions at the Transport Layer 48
Understanding TCP 49
Understanding UDP 50
Describing the Functions at the Internet Layer 52
Defining Logical Addressing 52
Performing Routing 53
Accomplishing Packet Forwarding 53
Describing the Functions of ARP 53
Illustrating the ARP Broadcast 54
Describing the Logic of MAC-to-IP-Address Conversion 56
The Essentials and Beyond 58
Chapter 4 Protocols 63
Understanding the Function of Protocols 63
Defining Routed Protocols 64
Defining Routing Protocols 64
Exploring Application Layer Protocols 65
Describing FTP 65
Describing TFTP 67
Describing SMTP 67
Describing DNS 69
Describing SNMP 70
Exploring Transport Layer Protocols 72
Reviewing TCP 72
Reviewing UDP 76
Exploring Internet Layer Protocols 77
Describing IP 77
Describing ARP 79
Describing ICMP 80
Describing IGMP 82
Exploring Network Access Layer Protocols 83
Defining Network Access Layer Protocols on the LAN 84
Defining Network Access Layer Protocols on the WAN 85
The Essentials and Beyond 86
Chapter 5 Physical and Logical Topologies 89
Designing the Physical Topology 89
Implementing a Bus Topology 90
Implementing a Ring Topology 91
Implementing a Star Topology 92
Implementing a Mesh Topology 94
Implementing a Hybrid Topology 95
Implementing a Point-to-Point Topology 96
Implementing a Point-to-Multipoint Topology 98
Designing the Logical Topology 99
Understanding the Token Ring Topology 99
Understanding the FDDI Ring Topology 100
Understanding the Star Topology 101
The Essentials and Beyond 102
Chapter 6 Numbering Systems 105
Exploring Binary Numbering 105
Understanding the Base-2 Numbering System 106
Understanding the Relationship between Binary and Computers 108
Exploring Hexadecimal Numbering 110
Understanding the Base-16 Numbering System 110
Identifying MAC Addresses 113
Applying Conversions 114
Decimal-to-Binary Conversion 114
Hex-to-Decimal Conversion 117
Binary-to-Hex Conversion 119
The Essentials and Beyond 121
Chapter 7 Classful IP Addressing 125
Describing the Function of IP Addresses 125
Identification 126
Segmentation 127
Identifying IP Address Types 128
Defining IP Address Classes 129
Identifying Network and Host Addresses 130
Describing Private IP Addresses and NAT 134
Utilizing Diagnostic Tools 135
Executing the ipconfig Command 137
Executing the ping Command 137
Executing the arp Command 138
Executing the traceroute Command 139
Understanding DHCP 139
Operations 139
Cisco DHCP 141
Introducing IPv6 142
IPv6 Address Format 142
IPv6 Address Types 143
Special IPv6 Addresses 144
Essentials and Beyond 144
Chapter 8 Classless IP Addressing 147
Understanding the Limitations of Classful Networking 147
Exhaustion of the Class B Network Address Space 148
Unmanageable Routing Tables 148
Exhaustion of the 32-Bit IPv4 Address Space 149
Understanding the Benefits of Subnetting 149
Identifying Sources of Network Congestion 150
Deploying Subnetting as a Segmentation Tool 151
Describing the Components of CIDR 152
Introducing Classless Subnetting 152
Understanding VLSM 161
Summarization 166
The Essentials and Beyond 166
Chapter 9 Media 169
Selecting the Proper Media Type 169
Bandwidth 170
Security 170
Convenience 174
Cost 174
Understanding Cabling 175
Describing Cable Behavior and Characteristics 175
Describing Physical Implementations 176
Choosing the Correct Wiring Standard 180
Describing Wireless Standards 184
Identifying Standards Bodies 185
Understanding 802.11 Amendments 185
Understanding Wireless LAN Components and Terminology 187
Describing CSMA/CA Operation 189
The Essentials and Beyond 190
Chapter 10 Network Devices 193
Describing Device Functions 193
Understanding Repeaters 194
Understanding Hubs 194
Understanding Bridges 195
Understanding Switches 197
Understanding Routers 201
Understanding Wireless Access Points and Wireless Routers 205
Understanding Device Placement Principles 207
Defining Broadcast Domains 207
Defining Collision Domains 208
Understanding the Cisco Three-Layer Model 211
Essentials and Beyond 212
Chapter 11 LAN Operations 215
Understanding the Routing Process 215
Describing Routing Tables 216
Understanding Population Methods 219
Understanding Administrative Distance 221
Using Routing Protocols 223
Describing the Switching Process 232
Reviewing MAC and IP Addresses 233
Reviewing Contention Methods 234
Describing MAC Address Tables 235
Understanding Frame Forwarding 236
Describing End-to-End Communications 237
Understanding the Local LAN Process 237
Understanding the Remote Communication Process 238
Essentials and Beyond 239
Chapter 12 Managing the Cisco IOS 243
Describing Components 243
Defining the Contents of RAM 244
Defining the Contents of NVRAM 245
Defining the Contents of Flash 245
Defining the Contents of ROM 246
Describing IOS Navigation 248
Connecting to the Device 248
Accessing User, Privileged, and Global Configuration Modes 252
Understanding and Managing the Boot Process 256
Understanding the Boot Process 257
Managing the IOS 260
Understanding Configuration Files 261
Managing the Configuration Register 263
The Essentials and Beyond 266
Chapter 13 Configuring Routers 271
Cabling the Router 271
Cabling Router to Router 274
Cabling Router to Switch 276
Cabling PC to Router 277
Cabling Router to CSU/DSU 279
Creating a Console Session 280
Connecting with the Console Cable 280
Connecting through Telnet 281
Handling Initial Setup 282
Configuring Passwords 282
Interpreting Prompts 282
Configuring Privileged (Enable) Passwords 283
Configuring Enable Secret Passwords 284
Configuring Line Passwords 284
Configuring Interfaces 286
Accessing Interface Mode 286
Assigning an IP Address 287
Enabling the Interface 288
Verifying the Interface 288
Enabling DHCP 290
Configuring WAN Interfaces 292
Saving Configuration Changes 294
The Essentials and Beyond 295
Chapter 14 Conf iguring Switches 299
Cabling the Switch 299
Cabling Switch to Switch 300
Cabling Router to Switch 301
Cabling Hosts to Switch 302
Creating a Session with the Switch 302
Creating a Session with the Console Cable 303
Creating a Session through Telnet 304
Configuring Passwords 305
Configuring Privileged (Enable) Passwords 305
Configuring Enable Secret Passwords 306
Configuring Line Passwords 306
Configuring Interfaces 306
Accessing Switchports and Using Switchport Mode 306
Enabling the Port 307
Verifying the Port 307
Understanding Advanced Switch Functions 308
Understanding VLANs 308
Understanding Trunk Ports 310
Describing STP 311
The Essentials and Beyond 315
Chapter 15 Conf iguring Static Routing 317
Populating the Routing Table 318
Using the ip route Command 318
Verifying the Route Table 320
Configuring Inter-VLAN Routing 321
Creating a Trunk Link with Encapsulation 322
Creating and Configuring Subinterfaces 323
The Essentials and Beyond 325
Chapter 16 Configuring Dynamic Routing 331
Understanding Routing Protocols 331
Exploring RIP 333
Exploring EIGRP 335
Exploring OSPF 336
Configuring Routing Protocols 336
Enabling a Routing Protocol and Accessing Router Mode 337
Defining the Interfaces on Which the Protocol Is Operational 338
Verifying the Routing Table 340
Appendix Answers to Review Questions 349
Index 359
