Transforming Campus Networks to Intent-Based Networking

Features

• Introduces a unique 4-phase methodology for incremental, non-disruptive “brownfield” transformations, since you probably can’t create a new network from the ground up
• Presents detailed guidance for implementing IBN with Cisco DNA and DNA Center
• Explains IBN’s crucial implications for managing network teams and evolving culture
• Contains start-to-finish case study scenarios: large enterprise networks, worldwide campus networks, mid-sized enterprises, and smaller businesses

Migrate to Intent-Based Networking–and improve network manageability, cost, agility, security, and simplicity

With Intent-Based Networking (IBN), you can create networks that capture and automatically activate business intent, assure that your network responds properly, proactively detect and contain security threats, and remedy network issues before users even notice.

Intent-Based Networking makes networks far more valuable, but few organizations have the luxury of building them from the ground up. In this book, leading expert Pieter-Jans Nefkens presents a unique four-phase approach to preparing and transforming campus network infrastructures, architectures, and organization–helping you gain maximum value from IBN with minimum disruption and cost.

The author reviews the problems IBN is intended to solve, and illuminates its technical, business, and cultural implications. Drawing on his pioneering experience, he makes specific recommendations, identifies pitfalls, and shows how to overcome them. You’ll learn how to implement IBN with the Cisco Digital Network Architecture and DNA Center and walk through real-world use cases. In a practical appendix, Nefkens even offers detailed technical configurations to jumpstart your own transformation.

Review classic campus network deployments and understand why they need to change

• Learn how Cisco Digital Network Architecture (DNA) provides a solid foundation for state-of-the-art next generation network infrastructures
• Understand “intent” and how it can be applied to network infrastructure
• Explore tools for enabling, automating, and assuring Intent-Based Networking within campus networks
• Transform to Intent-Based Networking using a four-phased approach: Identify challenges; Prepare for Intent; Design and Deploy; and Enable Intent
• Anticipate how Intent-Based Networking will change your enterprise architecture, IT operations, and business
  

Online Sample Chapter

Intent-Based Networking

Sample Pages

Download the sample pages (includes Chapter 5)

Table of Contents

Introduction xx
Part I Overview of Intent-Based Networking 1
Chapter 1 Classic Campus Network Deployments 3
Campus Design Fundamentals 4
Wireless Networks 10
Design Choices 15
Summary 20
Chapter 2 Why Change Current Networks? A Need for Change 23
Wireless/Mobility Trends 23
Connected Devices (IoT/Non-User Operated Devices) 26
Complexity 28
Manageability 29
Cloud (Edge) 30
(Net)DevOps 32
Digitalization 35
Summary 36
Chapter 3 Enterprise Architecture 37
What Is an Architecture Framework? 37
The TOGAF® Standard 39
Enterprise Architectures 48
Summary 49
Chapter 4 Cisco Digital Network Architecture 51
Requirements 51
Cisco DNA Design Concept 56
Design Principles 60
Common Design Principles 68
Overview of Cisco Solutions 73
Summary 74
Chapter 5 Intent-Based Networking 77
What Is Intent? 78
Intent-Based Networking Perspective 80
Intent-Based Networking Designs 83
Summary 91
Two Designs 93
Chapter 6 Tools for Intent 95
What Is Network Automation? 95
Network Automation Tools 97
Network Analytics 111
Application Behavior Analytics 112
Network Analytics Tools 113
Summary 119
Network Automation 119
Network Analytics 120
Part II Transforming to an Intent-Based Network 123
Chapter 7 Phase One: Identifying Challenges 129
Challenges in Day-to-Day Operations 129
Inventory 132
Level of Standardization 134
Maturity Level of an Organization 138
Stakeholders 141
Prioritize 142
Action Plan 143
Summary 145
Chapter 8 Phase Two: Prepare for Intent 147
Matching Requirements 148
Standardization of Campus Configuration 155
Introducing Assurance/Visibility 162
Introducing Automation 166
Risks of This Phase 174
Summary 176
Chapter 9 Phase Three: Design, Deploy, and Extend 179
Lab Environment 179
Which Technology? 181
Deploy a Baseline 187
Convert to Intents 200
Extend Intent Based 202
Increase Security 204
Risks 209
Summary 211
Chapter 10 Phase Four: Enable Intent 213
Why Enable Intent Further? 213
APIs for Intent 215
Bringing IBN to the Enterprise 220
Intent-Based Examples 223
Summary 226
Part III Organizational Aspects 227
Chapter 11 Architecture Frameworks 229
Enterprise Architecture 229
Impact of IBN 232
Summary 235
Chapter 12 Enabling the Digital Business 237
What Is Digitalization? 237
Stages in Digitalization 239
Design Thinking 242
Intent-Based Networking 245
Organizational Impact 246
Summary 249
Chapter 13 IT Operations 251
Common Frameworks Within IT Operations 252
Potential Conflicts and Recommendations 264
Summary 267
Chapter 14 Tips to Make Your IBN Journey a Success 271
Human Change 271
Fear 274
Quid Pro Quo and Incentives 274
Challenge 276
Failure 277
Forward Thinking 277
Ownership 278
Training and Demonstration 279
Stakeholders and Governance 279
Lifecycle Management 280
Summary 280
Appendix A Campus Network Technologies 283
Appendix B (online only) Sample Configurations 1
9780135466339, TOC, 11/4/2019

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