LAN Switching
Rahul Vir, Ohio State University
LAN switching is a technology that promises to increase the efficiency of local area networks and solve the current bandwidth problems. This paper covers switch features, switching architectures, protocol support and management functions provided in switches and provides some guidelines for switch shopping. It also touches on how switches can be used to implement virtual LANs and ease management functions.
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Table of Contents
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1. Introduction
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1.1 Bandwidth Problem in LANs
1.2 Possible Solutions
1.3 How can LAN Switching help?
1.4 Bridges and Routers
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2. Switch Features
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2.1 Full Duplex
2.2 Flow Control
2.3 Static and Dynamic Switching
2.4 Cut-Through Versus Store-and-Forward Switching
2.5 Address Resolution
2.6 Multiple LAN Technologies
2.7 Network Management
2.8 Fault Tolerance
2.9 Multilayer Switching
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3. Switch Architecture
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3.1 Frame Versus Cell Switching
3.2 Buffering
3.3 Blocking and non-blocking switch architecture
3.4 RISC Versus ASIC
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4. Switched LAN Topology
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5. VLANs
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6. Switch Shopping
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6.1 Switch Selection
6.2 Price
6.3 Switch buying guidelines with average costs
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7. LAN Switching: Not a panacea
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7.1 Switch with Caution
7.2 ATM and Ethernet switching
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8. Summary
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9. Appendices
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9.1 Appendix A: List of Acronyms
9.2 Appendix B: Buyers' Guide for LAN Switches
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10. References
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