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

OpenStack


OpenStack tries to solve a very complex problem, which is to create an open source, flexible, extensible Infrastructure-as-a- Service (IaaS) datacenter. Imagine if you are creating an Amazon AWS or Microsoft Azure public cloud from your own bare metal server and off-the-shelf network equipment, and you can begin to see the complication that the process involves. In order to be scalable, the required components need to be broken off into self-contained components. Each of the component consists of sub-components and plugins that allow for more extension and community involvement. Let's take a look at the core and associated components at a high level in the next section.

OpenStack overview

In OpenStack, the overall components can be separated into the following core services:

  • Compute, code named nova: It is the computing fabric controller for managing and controlling computing resources. It works with bare metal servers as well as hypervisor technologies, such as KVM, Xen, Hyper-V...