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

Mininet commands


Mininet is a great tool for virtualizing the OpenFlow lab. As discussed before, Mininet is a wrapper over multiple tools, such as OVS, and Linux containers. It allows you to create different configurations and labs using virtual switches.

Mininet has lots of commands and CLI arguments; we will cover only the relevant ones here:

  • Arguments
  • --Topo

Topo is used to tell Mininet what kind of topology to build. There are predefined topologies in Mininet, such as linear, tree, and minimal; also, you can create and define your own topology using a script.

Linear and tree topologies are good topologies to use when running Mininet labs.

  • --mac

This argument generates the host's MAC addresses based on the host ID; it is very useful for debugging and testing.

  • -v debug

This argument is used for debugging the output of Mininet. If you start Mininet with this option, it starts generating lots of debug output to help you understand what's going on behind the Mininet wrapper.

  • --arp

This argument tells...