Book Image

Practical Network Automation

By : Abhishek Ratan
Book Image

Practical Network Automation

By: Abhishek Ratan

Overview of this book

Network automation is the use of IT controls to supervise and carry out every-day network management functions. It plays a key role in network virtualization technologies and network functions. The book starts by providing an introduction to network automation, SDN, and its applications, which include integrating DevOps tools to automate the network efficiently. It then guides you through different network automation tasks and covers various data digging and reporting methodologies such as IPv6 migration, DC relocations, and interface parsing, all the while retaining security and improving data center robustness. The book then moves on to the use of Python and the management of SSH keys for machine-to-machine (M2M) communication, all followed by practical use cases. The book also covers the importance of Ansible for network automation including best practices in automation, ways to test automated networks using different tools, and other important techniques. By the end of the book, you will be well acquainted with the various aspects of network automation.
Table of Contents (14 chapters)
Title Page
Credits
About the Author
About the Reviewer
www.PacktPub.com
Customer Feedback
Preface

Example and use case


Here, we will see a detailed example that is common to most network engineers, and how to automate it using Python. Also, we will create it as a web based tool, enabling it to run from any environment or machine, using only a browser.

Create a web-based pre and post check tool for validations

In the following example, we will see how we can perform a pre and post check on any network maintenance that we do. This is generally required by every network engineer while performing activities on production devices to ensure that once the maintenance activity is complete, an engineer has not missed out anything that could cause an issue later on. It is also required to validate if our changes and maintenance have been completed successfully, or if we need to perform additional fixes and rollbacks in case of validations that have failed.

The following are the steps to create and execute the tool:

Step 1 – Create the main HTML file

We will design a web-based form to select certain...