Book Image

Learning OpenDaylight

By : Reza Toghraee
Book Image

Learning OpenDaylight

By: Reza Toghraee

Overview of this book

OpenDaylight is an open source, software-defined network controller based on standard protocols. It aims to accelerate the adoption of Software-Defined Networking (SDN) and create a solid foundation for Network Functions Virtualization (NFV). SDN is a vast subject; many network engineers find it difficult to get started with using and operating different SDN platforms. This book will give you a practical bridge from SDN theory to the practical, real-world use of SDN in datacenters and by cloud providers. The book will help you understand the features and use cases for SDN, NFV, and OpenDaylight. NFV uses virtualization concepts and techniques to create virtual classes for node functions. Used together, SDN and NFV can elevate the standards of your network architecture; generic hardware-saving costs and the advanced and abstracted software will give you the freedom to evolve your network in the future without having to invest more in costly equipment. By the end of this book, you will have learned how to design and deploy OpenDaylight networks and integrate them with physical network switches. You will also have mastered basic network programming over the SDN fabric.
Table of Contents (18 chapters)
Title Page
Credits
About the Author
Acknowledgments
About the Reviewers
www.PacktPub.com
Customer Feedback
Dedication
Preface

OpenDaylight applications and why we use them


Now that we are familiar with ODL and understand how it operates, let's start looking at the custom applications and plugin structure that ODL offers. Building an application for ODL is a little bit different than how you do it on other platforms.

MD-SAL adds great flexibility for building applications and simplifies the communication between them. The code you build for such applications can be reused for different models if they are written in a proper way. On the other hand though, MD-SAL makes a programmer work more, as it requires them to build multiple lines of code in YANG and Java implementation codes for just a single application. Somehow, you can refer a model to a class in object-oriented programming. A class exists within a program, and you can create different objects based on this class. A model is very similar to a class. However, the context where the model lives is not inside some software; it's inside the system.

Note

Remember...