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OSPF Network Design Solutions, Second Edition

Book Description

The comprehensive reference for OSPF network design and deployment

  • Understand the full dynamics of OSPF network components, how they interact with one another, and how to configure them

  • Increase the efficiency of your OSPF network through a variety of performance tuning techniques

  • Apply load balancing to enhance OSPF's capability to adapt to network topology changes

  • Ensure seamless communication between OSPF and other Interior Gateway Protocols (IGPs) and OSPF and BGP through redistribution

  • Optimize network stability and efficiency with OSPF summarization

  • Maximize your ability to properly manage an ever-changing OSPF network landscape through Simple Network Management Protocol (SNMP) and Management Information Bases (MIBs)

  • Develop a practiced, tested security plan to protect your OSPF network

  • Optimize the efficiency and bandwidth of your OSPF network through the integration of MPLS

  • Complete your basic OSPF knowledge gaps with a boiled down summary of the OSPF RFCs

  • One of the most prevalent Interior Gateway Protocols (IGPs), OSPF is in use in numerous networks across the globe. Open Shortest Path First (OSPF) is also one of the most widely tested protocols if you choose to pursue a networking certification. From a technical perspective, the overwhelming presence of OSPF ensures that you will encounter it at some point in your career. As a result, every networking professional should understand how OSPF operates, how to configure and troubleshoot this important protocol, and most importantly how to design a network that uses OSPF.

    OSPF Network Design Solutions, Second Edition provides comprehensive coverage of OSPF network design, deployment, management, and troubleshooting. The book begins in Part I by providing you with a common-sense understanding of the primary building blocks of internetworking, and follows up with a detailed examination of how OSPF fits into the big picture. You will also learn how OSPF neighboring routers communicate with one another via link-state advertisements (LSAs) and how to optimize this communication for network efficiency. Part II begins with a detailed explanation of how to apply the "golden rules of design" to create an optimal OSPF network and follows up with a logical approach to configuring OSPF routers and areas. Part II concludes with hard-to-find information about how to redistribute RIP into OSPF and OSPF into BGP as well as how to make your OSPF network more efficient through summarization. Part III provides you with detailed information about how to keep pace with network growth through tested network management tools and techniques. Furthermore, you will learn how to secure your OSPF network from inside and outside attackers and how to troubleshoot your network should problems arise. Part III concludes with timely information about how to accommodate BGP and MPLS in an OSPF network.

    Table of Contents

    1. Copyright
    2. About the Author
    3. About the Technical Reviewers
    4. Acknowledgments
    5. Icons Used in This Book
    6. Introduction
    7. OSPF Fundamentals and Communication
      1. Networking and Routing Fundamentals
        1. Foundations of Networking
        2. Understanding the Seven Layers of the OSI Reference Model
        3. OSI Reference Model Layers and Information Exchange
        4. TCP/IP Protocol Suite
        5. Types of Network Topologies
        6. IP Addressing
        7. Explaining the Need for VLSM and CIDR
        8. VLSMs
        9. CIDR
        10. Case Study: VLSMs
        11. Summary
      2. Introduction to OSPF
        1. What Is a Routing Protocol?
        2. Selecting a Routing Protocol
        3. SPF Overview
        4. OSPF Routing Hierarchy
        5. OSPF Operational Environment
        6. Case Study: Adding a New OSPF Router to a Network
        7. Case Study: Developing the Link-State Database
        8. Case Study: OSPF Network Evolution and Convergence
        9. Summary
      3. OSPF Communication
        1. Link-State Advertisements
        2. Speaking OSPF
        3. Manipulating LSAs
        4. Detailed Neighbor Establishment
        5. Case Study: OSPF Initialization
        6. Case Study: Troubleshooting Neighbor Problems
        7. Summary
    8. OSPF Routing and Network Design
      1. Design Fundamentals
        1. OSPF Design Guidelines
        2. OSPF Design Goals
        3. OSPF Network Design Methodology
        4. OSPF Network Scalability
        5. OSPF Network Topology
        6. Area Design Considerations
        7. Area Design Overview
        8. Standard Area Design
        9. Backbone Area Design
        10. Stub Area Design
        11. OSPF Virtual Links: Bane or Benefit?
        12. OSPF Design Tools
        13. Summary
        14. Case Studies
        15. Case Study: Understanding Subinterfaces
        16. Case Study: Point-to-Multipoint Link Networks
        17. Case Study: Designing an OSPF Network
      2. Routing Concepts and Configuration
        1. OSPF Routing Concepts
        2. Configuring OSPF
        3. Summary
        4. Case Study: Assigning Unique Network Numbers to Each OSPF Area
        5. Case Study: OSPF with Multiple Areas
        6. Case Study: OSPF with Stub and Totally Stubby Areas
      3. Redistribution
        1. OSPF Redistribution
        2. Chapter Summary
      4. Summarization with OSPF
        1. Summarization with OSPF
        2. Summary
        3. Final Router Example Configurations
    9. OSPF Implementation, Troubleshooting, and Management
      1. Managing and Securing OSPF Networks
        1. Network Management
        2. Simple Network Management Protocol
        3. Network Security
        4. Summary
        5. Case Study: IOS Secure Template
        6. Case Study: Router and Firewall Deployment
      2. Troubleshooting OSPF
        1. The Mechanics of Troubleshooting OSPF
        2. Determining That OSPF Is Operating Properly
        3. OSPF Troubleshooting Commands
        4. OSPF debug Commands
        5. Summary
        6. Case Study: In the Trenches with OSPF
        7. Case Study: OSPF Issues and Teasers
      3. BGP and MPLS in an OSPF Network
        1. Review of Interior Gateway Protocols and Exterior Gateway Protocols
        2. Introduction to BGP
        3. BGP and OSPF Interaction
        4. Case Study: BGP
        5. MPLS and OSPF
        6. Summary
    10. Additional OSPF Resources
      1. Overview of the OSPF RFCs
        1. Overview of OSPF-Related RFCs
        2. RFC 1131: OSPF Specification
        3. RFC 1245: OSPF Protocol Analysis
        4. RFC 1246: Experience with the OSPF Protocol
        5. RFC 1247: OSPF Version 2
        6. RFC 1248: OSPF Version 2 Management Information Base
        7. RFC 1252: OSPF Version 2 Management Information Base
        8. RFC 1253: OSPF Version 2 Management Information Base
        9. RFC 1364: BGP OSPF Interaction
        10. RFC 1370: Applicability Statement for OSPF
        11. RFC 1371: Choosing a “Common IGP” for the IP Internet
        12. RFC 1403: BGP OSPF Interaction
        13. RFC 1583: OSPF Version 2
        14. RFC 1584: Multicast Extensions to OSPF
        15. RFC 1585: MOSPF: Analysis and Experience
        16. RFC 1586: Guidelines for Running OSPF over Frame Relay Networks
        17. RFC 1587: The OSPF NSSA Option
        18. RFC 1745: BGP4/IDRP for IP-OSPF Interaction
        19. RFC 1765: OSPF Database Overflow
        20. RFC 1793: Extending OSPF to Support Demand Circuits
        21. RFC 1850: OSPF Version 2 Management Information Base
        22. RFC 2178: OSPF Version 2
        23. RFC 2328: OSPF Version 2
        24. RFC 2370: Opaque LSA Option
        25. RFC 2676: QoS Routing Mechanisms and OSPF Extensions
        26. RFC 2740: OSPF for IPv6
        27. RFC 2844: OSPF over ATM and Proxy PAR
        28. Summary