Cisco LAN Switching

✍ Scribed by Clark, Kennedy;Hamilton, Kevin

• Publisher: Cisco Press
• Year: 1999
• Tongue: English
• Leaves: 957
• Series: CCIE Professional Development Series
• Category: Library

✦ Synopsis

The most complete guide to Cisco Catalyst(r) switch network design, operation, and configurationMaster key foundation topics such as high-speed LAN technologies, LAN segmentation, bridging, the Catalyst command-line environment, and VLANsImprove the performance of your campus network by utilizing effective Cisco Catalyst design, configuration, and troubleshooting techniquesBenefit from the most comprehensive coverage of Spanning-Tree Protocol, including invaluable information on troubleshooting common Spanning Tree problemsMaster trunking concepts and applications, including ISL, 802.1Q, LANE, and MPOAUnderstand when and how to utilize Layer 3 switching techniques for maximum effectUnderstand Layer 2 and Layer 3 switching configuration with the Catalyst 6000 family, including coverage of the powerful MSFC Native IOS Mode

"Cisco LAN Switching"provides the most comprehensive coverage of the best methods for designing, utilizing, and deploying LAN switching devices and technologies in a modern campus network. Divided into six parts, this book takes you beyond basic switching concepts by providing an array of proven design models, practical implementation solutions, and troubleshooting strategies. Part I discusses important foundation issues that provide a context for the rest of the book, including Fast and Gigabit Ethernet, routing versus switching, the types of Layer 2 switching, the Catalyst command-line environment, and VLANs. Part II presents the most detailed discussion of Spanning-Tree Protocol in print, including common problems, troubleshooting, and enhancements, such as PortFast, UplinkFast, BackboneFast, and PVST+. Part III examines the critical issue of trunk connections, the links used to carry multiple VLANs through campus networks. Entire chapters are dedicated to LANE and MPOA. Part IV addresses advanced features, such as Layer 3 switching, VTP, and CGMP and IGMP. Part V covers real-world campus design and implementation issues, allowing you to benefit from the collective advice of many LAN switching experts. Part VI discusses issues specific to the Catalyst 6000/6500 family of switches, including the powerful Native IOS Mode of Layer 3 switching.

Several features in "Cisco LAN Switching"are designed to reinforce concepts covered in the book and to help you prepare for the CCIE exam. In addition to the practical discussion of advanced switching issues, this book also contains case studies that highlight real-world design, implementation, and management issues, as well as chapter-ending review questions and exercises.

This book is part of the Cisco CCIE Professional Development Series from Cisco Press, which offers expert-level instruction on network design, deployment, and support methodologies to help networking professionals manage complex networks and prepare for CCIE exams.

✦ Table of Contents

Contents......Page 9
Part I: Foundational Issues......Page 30
Legacy Ethernet......Page 32
LAN Frames......Page 37
Fast Ethernet......Page 41
Gigabit Ethernet......Page 51
Token Ring......Page 56
Review Questions......Page 59
Why Segment LANs?......Page 62
Segmenting LANs with Repeaters......Page 64
Segmenting LANs with Bridges......Page 69
Segmenting LANs with Routers......Page 73
Segmenting LANs with Switches......Page 75
Summary......Page 77
Review Questions......Page 78
Transparent Bridging......Page 82
Switching Modes......Page 87
Token Ring Bridging......Page 91
Token Ring Switching......Page 100
Ethernet or Token Ring?......Page 104
Migrating Token Ring to Ethernet......Page 105
Review Questions......Page 106
Chapter 4 Configuring the Catalyst......Page 110
Catalyst 5000 Configuration Methods......Page 111
Using the Catalyst 5000/6000 Command-Line Interface......Page 116
Catalyst Password Protection......Page 127
Catalyst Configuration File Management......Page 129
Catalyst Image File Management......Page 131
Redundant Supervisor Modules......Page 133
Configuring Other Catalysts......Page 135
Review Questions......Page 137
What Is a VLAN?......Page 140
VLAN Types......Page 143
802.1Q: VLANs and Vendor Interoperability......Page 148
Justifying the Need for VLANs......Page 150
Moving Users in VLANs......Page 155
Catalyst VLAN Configuration......Page 163
VMPS and Dynamic VLANs: Advanced Administration......Page 171
Protocol Filtering......Page 179
Review Questions......Page 180
Part II: Spanning Tree......Page 184
Chapter 6 Understanding Spanning Tree......Page 186
What Is Spanning Tree and Why Use Spanning Tree?......Page 187
Two Key Spanning-Tree Protocol Concepts......Page 191
Four-Step STP Decision Sequence......Page 193
Three Steps of Initial STP Convergence......Page 194
Five STP States......Page 201
Three STP Timers......Page 203
Mastering the show spantree Command......Page 206
Two Types of BPDUs......Page 210
Topology Change Process......Page 214
Using Spanning Tree in Real-World Networks......Page 219
Deterministic Root Bridge Placement......Page 222
All of This Per VLAN!......Page 225
Exercises......Page 226
Typical Campus Design: A Baseline Network......Page 232
STP Behavior in the Baseline Network: A Spanning Tree Review......Page 235
Spanning Tree Load Balancing......Page 247
Fast STP Convergence......Page 276
Useful STP Display Commands......Page 301
Per-VLAN Spanning Tree Plus......Page 307
Disabling STP......Page 314
Tips and Tricks: Mastering STP......Page 316
Exercises......Page 320
Part III: Trunking......Page 326
Why Trunks?......Page 328
Ethernet Trunks......Page 333
FDDI Trunks and 802.10 Encapsulation......Page 353
ATM Trunks......Page 357
Trunk Options......Page 363
Review Questions......Page 369
Chapter 9 Trunking with LAN Emulation......Page 372
A Brief ATM Tutorial......Page 373
LANE: Theory of Operation......Page 390
Configuration Concepts......Page 414
Configuration Syntax......Page 417
A Complete LANE Network......Page 423
Testing the LANE Configuration......Page 425
Advanced LANE Issues and Features......Page 429
Exercises......Page 437
Why Two ATM Modes?......Page 442
MPOA Components and Model......Page 445
MPOA Configuration......Page 456
Sample MPOA Configuration......Page 465
Troubleshooting an MPOA Network......Page 468
Ensuring the ELANs Are Functional between the Source and the Destination......Page 469
Review Questions......Page 473
Part IV: Advanced Features......Page 476
Layer 3 Switching Terminology......Page 478
The Importance of Routing......Page 480
Router-on-a-Stick......Page 481
The RSM......Page 489
MLS......Page 494
Switching Routers......Page 529
MLS versus 8500s......Page 533
Catalyst 6000 Layer 3 Switching......Page 539
HSRP......Page 540
Integration between Routing and Bridging......Page 548
Review Questions......Page 562
Chapter 12 VLAN Trunking Protocol......Page 564
Understanding VTP......Page 565
VTP Modes......Page 571
The Working Mechanics of VTP......Page 576
Configuring VTP Mode......Page 586
VTP Pruning: Advanced Traffic Management......Page 594
Review Questions......Page 597
CGMP/IGMP: Advanced Traffic Management......Page 600
Broadcast Suppression: Advanced Traffic Management......Page 621
Review Questions......Page 625
Part V: Real-World Campus Design and Implementation......Page 628
Changing Traffic Patterns......Page 630
Campus Design Terminology......Page 633
Key Requirements of Campus Designs......Page 640
Advantages of Routing......Page 641
Campus Design Models......Page 643
General Recommendation: Multilayer Model......Page 651
Switching Router (8500) MDFs......Page 653
Exercises......Page 666
VLANs......Page 670
Spanning Tree......Page 687
Load Balancing......Page 701
Routing/Layer 3 Switching......Page 705
ATM......Page 708
Campus Migrations......Page 713
Server Farms......Page 714
Additional Campus Design Recommendations......Page 719
Review Questions......Page 724
Troubleshooting Philosophies......Page 726
Catalyst Troubleshooting Tools......Page 734
Logging......Page 742
Chapter 17 Case Studies: Implementing Switches......Page 744
The Design Scenario......Page 745
Should the Flat Earth Model Be Used?......Page 748
Design 1: Using MLS to Blend Layer 2 and Layer 3 Processing......Page 752
Design 2: Maximizing Layer 3 with Catalyst 8500 Switching Routers......Page 801
Summary......Page 830
Part VI: Catalyst 6000 Technology......Page 832
Catalyst 6000 Layer 2 Characteristics......Page 834
MSM Layer 3 Switching......Page 835
MSFC Hybrid Mode Layer 3 Switching......Page 841
MSFC Native IOS Mode Layer 3 Switching......Page 849
Native IOS Mode Configuration......Page 858
Useful Native IOS Mode Commands......Page 865
Review Questions......Page 868
Part VII: Appendix......Page 870
Appendix A: Answers to End of Chapter Exercises......Page 872
A......Page 922
B......Page 924
C......Page 926
D......Page 931
E......Page 933
F......Page 935
G......Page 936
I......Page 937
L......Page 939
M......Page 941
N......Page 944
P......Page 946
R......Page 948
S......Page 950
T......Page 953
U......Page 955
V......Page 956
X......Page 957

✦ Subjects

Computer Science;Technical