LAN Switching and Wireless, w. CD-ROM
CCNA Exploration Companion Guide
(Sprache: Englisch)
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&atext-align=left align=left>Chapter 1 LAN Design 1 Objectives 1 Key Terms 1 Switched LAN Architecture 2 The Hierarchical Network Model 2 Access Layer 2 Distribution Layer 3 Core Layer 3 A Hierarchical Network in a Medium-Sized Business 4 Benefits of a Hierarchical Network 4 Principles of Hierarchical Network Design 6 Network Diameter 7 Bandwidth Aggregation 8 Redundancy 9 What Is a Converged Network? 10 Legacy Equipment 10 Advanced Technology 11 New Options 12 Separate Voice, Video, and Data Networks 13 Matching Switches to Specific LAN Functions 15 Considerations for Hierarchical Network Switches 15 Traffic Flow Analysis 15 User Community Analysis 17 Data Stores and Data Servers Analysis 19 Topology Diagrams 20 Switch Features 22 Switch Form Factors 22 Switch Performance 24 Power over Ethernet and Layer 3 Functionality 26 Switch Features in a Hierarchical Network 28 Access Layer Switch Features 28 Distribution Layer Switch Features 30 Core Layer Switch Features 31 Switches for Small and Medium Sized Business (SMB) 33 Catalyst Express 500 33 Catalyst 2960 34 Catalyst 3560 35 Catalyst 3750 36 Catalyst 4500 36 Catalyst 4900 37 Catalyst 6500 38 Comparing Switches 39 Summary 40 Labs 40 Check Your Understanding 41 Challenge Questions and Activities 44 Chapter 2 Basic Switch Concepts and Configuration 45 Objectives 45 Key Terms 45 Introduction to Ethernet/802.3 LANs 46 Key Elements of Ethernet/802.3 Networks 46 CSMA/CD 46 Ethernet Communications 47 Duplex Settings 49 Switch Port Settings 50 Switch MAC Address Table 51 Design Considerations for Ethernet/802.3 Networks 52 Bandwidth and Throughput 52 Collision Domains 53 Broadcast Domains 54 Network Latency 54 Network Congestion 55 LAN Segmentation 55 LAN Design Considerations 56 Forwarding Frames Using a Switch 58 Switch Forwarding Methods 59 Symmetric and Asymmetric Switching 60 Memory Buffering 60 Layer 2 and Layer 3 Switching 62 Switch Management Configuration 63 Navigating Command-Line Interface Modes 63
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GUI-Based Alternatives to the CLI 65 Using the Help Facility 68 Accessing the Command History 70 Switch Boot Sequence 71 Prepare to Configure the Switch 72 Basic Switch Configuration 72 Management Interface 73 Default Gateway 74 Duplex and Speed 75 HTTP Access 76 MAC Address Table Management 77 Verifying Switch Configuration 78 Basic Switch Management 80 Backing Up and Restoring Switch Configuration Files 80 Using a TFTP Server with Switch Configuration Files 82 Clearing Switch Configuration Information 84 Configuring Switch Security 85 Configuring Password Options 85 Securing Console Access 85 Securing Virtual Terminal Access 87 Securing Privileged EXEC Access 88 Encrypting Switch Passwords 89 Password Recovery 90 Login Banners 92 Configure Telnet and SSH 93 Configuring Telnet 93 Configuring SSH 94 Common Security Attacks 96 MAC Address Flooding 96 Spoofing Attacks 100 CDP Attacks 101 Telnet Attacks 102 Security Tools 103 Configuring Port Security 105 Securing Unused Ports 110 Summary 111 Labs 111 Check Your Understanding 112 Challenge Questions and Activities 117 Chapter 3 VLANs 121 Objectives 121 Key Terms 121 Introducing VLANs 122 Defining VLANs 122 Benefits of VLANs 124 VLAN ID Ranges 126 Types of VLANs 126 Voice VLANs 131 Network Application Traffic Types 133 Switch Port Membership Modes 136 Controlling Broadcast Domains with VLANs 138 VLAN Trunking 143 VLAN Trunks 144 IEEE 802.1Q Frame Tagging 145 Native VLANs 147 Trunking Operation 148 Trunking Modes 149 Configure VLANs and Trunks 151 Configure a VLAN 152 Managing VLANs 155 Managing VLAN Memberships 158 Configure a Trunk 160 Troubleshooting VLANs and Trunks 164 Common Problems with Trunks 165 A Common Problem with VLAN Configurations 171 Summary 173 Labs 173 Check Your Understanding 174 Challenge Questions and Activities 178 Chapter 4 VTP 181 Objectives 181 Key Terms 181 VTP Concepts 182 What Is VTP? 182 Benefits of VTP 184 VTP Components 184 VTP Operation 186 Default VTP Configuration 186 VTP Domains 188 VTP Advertising 190 VTP Configuration Revision Number 192 VTP Advertisement Types 193 VTP Modes 197 VTP Server-to-Client Behavior 198 VTP Server-to-Transparent-to-Client Behavior 199 VTP Pruning 201 VTP Pruning in Action 202 Configure VTP 204 Configuring VTP 204 Steps to Configuring VTP 206 Troubleshooting VTP Configurations 212 Incompatible VTP Versions 212 VTP Password Issues 212 Incorrect VTP Domain Name 213 All Switches Set to VTP Client Mode 214 VTP Troubleshooting Example 215 Managing VLANs on a VTP Server 217 Summary 219 Labs 219 Check Your Understanding 220 Challenge Questions and Activities 224 Chapter 5 STP 227 Objectives 227 Key Terms 227 Redundant Layer 2 Topologies 229 Redundancy 229 Issues with Redundancy 234 Broadcast Storms 238 Duplicate Unicast Frames 240 Real-World Redundancy Issues 241 Loops in the Wiring Closet 242 Loops in Cubicles 243 Introduction to STP 244 Spanning-Tree Algorithm (STA) 244 STP Topology 245 Port Types in the Spanning-Tree Algorithm 247 Root Bridge 248 Best Paths 249 STP BPDU 252 BPDU Process 253 Bridge ID 258 Configure and Verify the BID 261 Port Roles 263 Configure Port Priority 265 Port Role Decisions 266 STP Port States and BPDU Timers 268 Cisco PortFast 271 STP Convergence 273 Step 1. Elect a Root Bridge 273 Verify Root Bridge Election 274 Step 2. Elect Root Ports 276 Verify Root Port Election 278 Step 3. Elect Designated and Nondesignated Ports 279 Verify Designated and Nondesignated Port Election 283 STP Topology Change 285 PVST+, RSTP, and Rapid PVST+ 286 Cisco and IEEE STP Variants 287 Per-VLAN Spanning-Tree (PVST) Overview 287 Per-VLAN Spanning-Tree Plus (PVST+) Overview 287 Rapid Spanning-Tree Protocol (RSTP) Overview 288 Multiple Spanning-Tree Protocol (MSTP) Overview 288 PVST+ 288 Configure PVST+ 291 RSTP 294 RSTP BPDU 295 Edge Ports 296 Link Types 297 RSTP Port States and Port Roles 298 RSTP Proposal and Agreement Process 301 Configuring Rapid PVST+ 309 Design STP for Trouble Avoidance 312 Minimize the Number of Blocked Ports 313 Use Layer 3 Switching 314 Keep STP Even if It Is Unnecessary 316 Keep Traffic off of the Management VLAN 316 Troubleshoot STP Operation 316 PortFast Configuration Error 317 Network Diameter Issues 318 Summary 320 Labs 320 Check Your Understanding 321 Challenge Questions and Activities 327 Chapter 6 Inter-VLAN Routing 331 Objectives 331 Key Terms 331 Inter-VLAN Routing 332 Introducing Inter-VLAN Routing 332 One-Router-Interface-per-VLAN 332 Router-on-a-Stick 334 Layer 3 Switch 336 Interfaces and Subinterfaces 337 One-Router-Interface-per-VLAN 338 Router-on-a-Stick 341 Considerations for Inter-VLAN Routing Methods 345 Configuring Inter-VLAN Routing 347 Configure Inter-VLAN Routing 347 Configure Router-on-a-Stick Inter-VLAN Routing 351 Troubleshooting Inter-VLAN Routing 356 Switch Configuration Issues 356 Switch Cisco IOS Commands for Troubleshooting 359 Router Configuration Issues 360 Router Cisco IOS Commands for Troubleshooting 361 IP Addressing Issues 362 IP Addressing Cisco IOS Verification Commands 364 Summary 366 Labs 366 Check Your Understanding 367 Challenge Questions and Activities 373 Chapter 7 Basic Wireless Concepts and Configuration 377 Objectives 377 Key Terms 377 The Wireless LAN 379 Why Use Wireless? 379 Wireless LANs 380 Comparing a WLAN to a LAN 381 Wireless LAN Components 383 Wireless LAN Standards 383 Wi-Fi Certification 386 Wireless Infrastructure Components 387 Wireless NICs 387 Wireless Access Points 388 Wireless Routers 390 Wireless Operation 391 Configurable Wireless Parameters 391 Wireless Topologies 393 Wireless Association 396 Planning the Wireless LAN 399 Wireless LAN Security 402 Threats to Wireless Security 402 Rogue Access Points 402 Man-in-the-Middle Attacks 403 Denial of Service 404 Wireless Security Protocols 405 Authenticating the Wireless LAN 407 Wireless Encryption 408 Controlling Access to the WLAN 409 Configure Wireless LAN Access 410 Configuring the Wireless Access Point 410 Configuring Basic Wireless Settings 413 Configuring Wireless Security 415 Configuring a Wireless NIC 418 Scan for SSIDs 418 Select the Wireless Security Protocol 420 Verify Connectivity to the WLAN 423 Troubleshooting Simple WLAN Problems 424 A Systematic Approach to WLAN Troubleshooting 424 Solve Access Point Radio and Firmware Issues 426 Channel Settings 426 RF Interference 429 Access Point Placement 431 Authentication and Encryption 434 Summary 436 Labs 436 Check Your Understanding 437 Challenge Questions and Activities 441 Appendix Check Your Understanding and Challenge Questions Answer Key 445 Glossary 461
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Autoren-Porträt von Wayne Lewis
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. Since 1998, Wayne has taught routing and switching, wide area networking, network troubleshooting, network security, wireless networking, IP telephony, and quality of service to instructors from universities, colleges, and high schools in Australia, Canada, Mexico, Central America, South America, United States, American Samoa, Guam, China, Hong Kong, Taiwan, Indonesia, Singapore, Korea, Japan, Italy, Germany, Netherlands, Sweden, Poland, Hungary, and Great Britain, both onsite and at PCATT/HonCC. Cisco has sent Wayne to several countries to conduct inaugural Networking Academy teacher-training sessions to certify the initial cohorts of instructors and kick off the training centers for these countries. Before teaching networking, Wayne began teaching at age 20 at Wichita State University, followed by the University of Hawaii and HonCC. In 1992, Wayne received a Ph.D. in math, specializing in finite rank torsion-free modules over a Dedekind domain; he now works on algebraic number theory research in his spare time. Wayne works as a contractor for Cisco , performing project management for the development of network security, CCNA, and CCNP curriculum. He and his wife, Leslie, also run a network consulting company. Wayne enjoys surfing the South Shore of Oahu in the summer and surfing big waves on the North Shore in the winter.
Bibliographische Angaben
- Autor: Wayne Lewis
- 2008, XXVI, 497 Seiten, mit zahlreichen Abbildungen, Masse: 21 x 24,9 cm, Gebunden, Englisch
- Verlag: Macmillan Technical Publishing
- ISBN-10: 1587132737
- ISBN-13: 9781587132735
Sprache:
Englisch
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