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Layer 3 Switching: A Guide for IT Professionals

Layer 3 Switching: A Guide for IT Professionals

          
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About the Book

91983-7 The first comprehensive, objective guide to Layer 3 switching Layer 3 switching is the next generation of LAN routing and switching technology-capable of transmission speeds up to ten times as fast at one-tenth the cost of current systems. Layer 3 Switching: A Guide for IT Professionals is the first systematic guide to this new technology. It presents clear criteria, business models and proven techniques for evaluating L3 switching products-and for planning and managing their implementation. Coverage includes: * How to determine whether Layer 3 switching really makes sense for your organization * Top 10 issues you must address to successfully deploy Layer 3 Switching * Real-world network designs incorporating Layer 3 switching * Practical explanations of what Layer 3 Switching is-and what it is not * Key differences between packet-by-packet L3 switches and L3 flow switches Discover how L3 switching can be used to evolve today's overtaxed server farm and collapsed backbone networks. Learn how L3 switching can be used to supplement FDDI to support applications that demand high bandwidth and high reliability. Compare today's leading approaches, with extensive examples of current products-including detailed real-world benchmarks for six L3 switches. Finally, understand your options for managing L3 switches once you've implemented them. Whether you're a network manager, professional, or consultant, if you need better LAN performance, you need this objective, no-hype guide to Level 3 switching.

Table of Contents:
Foreword Acknowledgments About the Authors 1. Introduction and Context. The Excitement of New Technology. What's Driving the Need for New Technology? Network Traffic. Network Resources. Criteria for Evaluating Fundamentally New Technology. The Definitions for Layer 3 Technology. Other Enabling Technologies. Virtual LANs. NHRP. RSVP. IP Multicast. 2. A Framework for Technology Evaluation. Introduction. Decision Criteria. A. Vendor and Price. B Serviceability and Manageability. C Technology and Architecture. Money. A Three Step IT Business Model. A Three Step Model of Network Management. Three Step Network Management Model. A. Gather Traffic Data. B Process the Raw Traffic Data into Information. C Act on the Information. Model of a Capacity Planning Process (The Model). 3. Traditional Network Design. LAN Technology is Retro. Shared Ethernet Networks. Hierarchical Routed Networks. Routing Functionality. The Motivation for Router Centric Networks. Layer 2 Switching. Introduction. Switch Functionality. Network Management. Switched Layer 2 Applications. Summary of Test Results. 4. Two Basic Types of Layer 3 Technology. Introduction. Packet-by-Packet Approaches. Classical Routers. Learning Bridges. Routing Switches. Modern Internet Routers. Flow-Switching Approaches. End-System-Driven Flow Switching. Network-Centric Flow Switching. Positioning of Layer 3 Switches. Summary of Functional Characteristics. 5. Packet-by-Packet Layer 3 Switches. Introduction. Bay Networks. Hardware Architecture. Software Architecture. 3Com. The FIRE Architecture. The CoreBuilder. Extreme Networks. Hardware Architecture. The Summit1(tm) and Summit2(tm) Switches. Torrent. Hardware Architecture. Key Processes. Additional Functionality. Ascend. Design Goals and Network Architecture. GRF 400 Functionality. Summary. 6. Flow Switching Approaches and Products. Introduction. 3Com's Fast IP. Cabletron's SecureFast Virtual Networking. Cisco's NetFlow LAN Switching. Cisco's Tag Switching. Multi-Protocol Over ATM (MPOA). Ipsilon's IP Switching. Summary. 7. Layer 3 Switching Case Study. Introduction. The Case Study. The Cisco Response. The Newbridge Response. Designing the Network. Solving the Problems. The Torrent Solution. Implementation Considerations. Implementation Details. Performance and Benefits. Solution Cost. Implementation Alternatives. Conclusion. The 3Com Response. Problem summary and assumptions. Proposed solution. Follow-on solutions. The Extreme Networks Solution. Router Backbone Upgrade Needed. Scale Performance with Third Wave LAN Switches. Application Sensitive Policy-Based Quality of Service. Key Technology Components. Scaling Backbone Speed. Step One: Add Summit Switches with Wire-Speed IP Routing and Gigabit Ethernet. Step Two: Implement ExtremeWare Policy-Based Quality of Service. Step Three: Upgrade Workgroup Switch Downlinks to 100 Mbps Fast Ethernet. The Bay Networks Solution. A New Solution Is Needed! Needed: Low Cost Routing. Routing Switches Are the Answer! Migration to a Routing Switch Backbone. The Xylan Solution. The Challenges. The Xylan Solution. 8. The Current LAN Marketplace. Introduction. What is Currently in Place. What is Driving and/or Inhibiting Change. Troublesome Issues. Impact of Applications. Network Management. Growth. Benefits and Features. Migration to New Technologies. Budget Factors. Other Inhibitors. Alternatives Being Considered. Purchase Plans. Backbone Upgrade Strategy. Quality of Service Strategy. Plans for Gigabit Ethernet. Decision Processes and Criteria. Value and Authority. Pricing Implications. Selection Criteria. Importance of Multiple Vendors. 9. Summary and Recommendations. Background. Characteristics of Layer 3 Switches. Ten Steps to Success. Appendix 1: List of Vendors and Switches. Comparative Test Results. Unidirectional Throughput/PLR. Congestion Test Results (Fast Ethernet-to-Fast Ethernet Unidirectional). Latency Test Results. Unidirectional Throughput/PLR. Congestion Test Results (Fast Ethernet-to-Fast Ethernet Unidirectional). Latency Test Results. Appendix 2: Bay Networks Accelar 1200. Routing Switch. Appendix 3: Extreme Networks Fast to Gigabit. Ethernet Test Results. Index.


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Product Details
  • ISBN-13: 9780139198380
  • Publisher: Pearson Education (US)
  • Publisher Imprint: Prentice Hall
  • Height: 243 mm
  • No of Pages: 280
  • Spine Width: 23 mm
  • Weight: 709 gr
  • ISBN-10: 0139198385
  • Publisher Date: 10 Dec 1998
  • Binding: Hardback
  • Language: English
  • Series Title: Prentice Hall Series in Computer Networking and Distributed Systems
  • Sub Title: A Guide for IT Professionals
  • Width: 185 mm


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