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

Chapter 2. Python for Network Engineers

As we are now familiar with how to write a program using the concepts used in programming languages, as well as best practices, now let's dig deep into writing an actual Python program or script. Keeping the primary focus on how to write a program in Python, we will also see how to write the same program in PowerShell, since there might be times where we would need to use PowerShell to achieve the results that we are looking for. We will cover various aspects of creating a program with some explanations of each of the statements and provide some tips and tricks to get through those tricky situations.

In this chapter, we will cover the following topics:

  • Python interpreter and data types
  • Writing Python scripts using conditional loops
  • Functions
  • Installing new modules/libraries
  • Passing arguments from command line for scripts
  • Using Netmiko to interact with network devices
  • Multithreading