The Art of Network Architecture: Business-Driven Design

Table of contents

1. About This eBook
2. Title Page
3. Copyright Page
4. About the Authors
5. About the Technical Reviewers
6. Dedications
7. Acknowledgments
8. Contents at a Glance
9. Contents
10. Command Syntax Conventions
11. Introduction
    1. What Is Network Architecture?
    2. Defining Architecture
    3. Get Out of the Silo
    4. Why Is Network Architecture an Art?
    5. A Look Ahead
    6. A Final Word
12. Part I: Framing the Problem
    1. Chapter 1. Business and Technology
       1. Business Drives Technology
       2. Technology Drives Business
13. Part II: Business-Driven Design
    1. Chapter 2. Designing for Change
       1. Organic Growth and Decline
       2. Mergers, Acquisitions, and Divestments
       3. Centralizing Versus Decentralizing
    2. Chapter 3. Improving Business Operations
       1. Workflow
       2. BYOD
       3. Business Continuity
       4. Summary
14. Part III: Tools of the Trade
    1. Chapter 4. Models
       1. The Seven-Layer Model
       2. The Four-Layer Model
       3. Iterative Layering Model
       4. A Hybrid Model
       5. Reactive and Proactive
       6. The Waterfall Model
       7. Places in the Network
       8. Summary
    2. Chapter 5. Underlying Support
       1. Questions You Should Ask
       2. Spanning Tree
       3. TRILL
       4. Final Thoughts on the Physical Layer
    3. Chapter 6. Principles of Modularity
       1. Why Modularize?
       2. How Do You Modularize?
       3. Modularization and Optimization
       4. Summary
    4. Chapter 7. Applying Modularity
       1. What Is Hierarchical Design?
       2. Typical Hierarchical Design Patterns
       3. Virtualization
       4. Final Thoughts on Applying Modularity
    5. Chapter 8. Weathering Storms
       1. Redundancy as Resilience
       2. MTTR, Resilience, and Redundancy
       3. Fast Convergence Techniques
       4. Fast Reroute
       5. The Human Side of Resilience
    6. Chapter 9. Securing the Premises
       1. The OODA Loop
       2. Brittleness
       3. Building Defense In
       4. Some Practical Considerations
       5. Summary
    7. Chapter 10. Measure Twice
       1. Why Manage?
       2. Management Models
       3. Deploying Management
       4. Bare Necessities
       5. Summary
15. Part IV: Choosing Materials
    1. Chapter 11. The Floor Plan
       1. Rings
       2. Full Mesh
       3. Clos Networks
       4. Partial Mesh
       5. Disjoint Parallel Planes
       6. Divergent Data Planes
       7. Cubes
       8. Toroid Topologies
       9. Summary
    2. Chapter 12. Building the Second Floor
       1. What Is a Tunnel?
       2. Fundamental Virtualization Questions
       3. MPLS-Based L3VPNs
       4. VXLAN
       5. Summary
    3. Chapter 13. Routing Choices
       1. Which Routing Protocol?
       2. IPv6 Considerations
       3. Deploying BGP
       4. Summary
    4. Chapter 14. Considering Complexity
       1. Control Plane State
       2. Control Plane Policy Dispersion
       3. Data Plane State
       4. Reaction Time
       5. Managing Complexity Trade-offs
16. Part V: Current and Future Trends
    1. Chapter 15. Network in Motion
       1. The Business Case for Mobility
       2. Pinning the Hard Problems into Place
       3. IP-Centric Mobility Solutions
       4. Remote Access Solutions
       5. What Solution Should You Deliver?
    2. Chapter 16. On Psychologists, Unicorns, and Clouds
       1. A Cloudy History
       2. This Time It’s Different
       3. What Does It Cost?
       4. What Are the Risks?
       5. What Problems Can Cloud Solve Well?
       6. What Services Is Cloud Good at Providing?
       7. Deploying Cloud
       8. Flying Through the Cloud
       9. Looking Back Over the Clouds
    3. Chapter 17. Software-Defined Networks
       1. Understanding SDNs
       2. Software-Defined Network Use Cases
       3. Final Thoughts on SDNs
    4. Chapter 18. Data Center Design
       1. Data Center Spine and Leaf Fabrics
       2. The Control Plane Conundrum
       3. Network Virtualization in the Data Center
       4. Thoughts on Storage
       5. Modularity and the Data Center
       6. Summary
17. Index