Book Image

Mastering Python Networking

Book Image

Mastering Python Networking

Overview of this book

This book begins with a review of the TCP/ IP protocol suite and a refresher of the core elements of the Python language. Next, you will start using Python and supported libraries to automate network tasks from the current major network vendors. We will look at automating traditional network devices based on the command-line interface, as well as newer devices with API support, with hands-on labs. We will then learn the concepts and practical use cases of the Ansible framework in order to achieve your network goals. We will then move on to using Python for DevOps, starting with using open source tools to test, secure, and analyze your network. Then, we will focus on network monitoring and visualization. We will learn how to retrieve network information using a polling mechanism, ?ow-based monitoring, and visualizing the data programmatically. Next, we will learn how to use the Python framework to build your own customized network web services. In the last module, you will use Python for SDN, where you will use a Python-based controller with OpenFlow in a hands-on lab to learn its concepts and applications. We will compare and contrast OpenFlow, OpenStack, OpenDaylight, and NFV. Finally, you will use everything you’ve learned in the book to construct a migration plan to go from a legacy to a scalable SDN-based network.
Table of Contents (22 chapters)
Title
Humble Bundle
Credits
Foreword
About the Author
About the Reviewer
www.PacktPub.com
Customer Feedback
Preface
12
OpenStack, OpenDaylight, and NFV

OpenDaylight


The OpenDaylight (ODL) project is an open source project founded in 2013 to promote software-defined networking and NFV. The software is written in Java. OpenDaylight supports technology such as OpenFlow, is modular in nature, and tries to enable network services across environments. In the middle of the OpenDaylight architecture is a service abstraction layer with standardized southbound API and protocol plugins, which allows operation with hardware devices such as OpenFlow and various vendor-centric:

An Operational View of OpenDaylight (source: https://www.opendaylight.org/platform-overview/)

Also shown in the preceding diagram is the northbound OpenDaylight API. This is normally a REST-based or NetConfig-based API by way of plugins. In the next section, let's take a look at the ODL project components and the project's programming approach.

OpenDaylight programming overview

The platform consists of the following essential components:

  • Java: The Java language is the language ODL...