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

Automation examples on various technology domains


With the familiarity and understanding of automation with the interaction of devices, APIs, controllers, let's see some examples of how to interact with other network domain devices and tackle some complex scenarios using automation frameworks.

Note

Some of these examples will be a small project in themselves, but will help you understand additional ways of performing automation tasks in depth.

BGP and routing table

Let's take an example in which we need to configure BGP, validate if a session is up, and report the details for the same. In our example, we would take two routers (as a prerequisite, both routers are able to ping each other) as follows:

As we see R2 and testrouter are able to ping each other using an IP address of the FastEthernet0/0 interface of each other.

The next step is a very basic configuration of BGP (in our case, we use the Autonomous System (AS) number 200). The code is as follows:

from netmiko import ConnectHandler
import...