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Practical Network Automation

By : Ratan

4.4 (8)

Buy this Book

Practical Network Automation

4.4 (8)

By: Ratan

Buy this Book

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.

Preface

What this book covers

What you need for this book

Who this book is for

Conventions

Reader feedback

Customer support

Free Chapter

Fundamental Concepts

Network automation

DevOps

Software-defined networking

OpenFlow

Program concepts

Language choices (Python/PowerShell)

Representational State Transfer (REST) framework

Summary

Python for Network Engineers

Python interpreter and data types

Conditions and loops

Writing Python scripts

Functions

Python modules and packages

Multithreading for parallel processing

Using Netmiko for SSH and network device interaction

Network automation use case

Summary

Accessing and Mining Data from Network

Device configurations

Multi-vendor environments

IP configs/interface parsing

Device OS upgrades

IPv4 to IPv6 conversion

Site rollouts

Office/DC relocations

Bring Your Own Device (BYOD) configs for switches

Summary

Web Framework for Automation Triggers

Why create web-based scripts/frameworks?

Understanding and configuring IIS for web framework

Creating web-specific scripts

Accessing a script from dynamic HTML

Creating the backend API in C#

Consuming the API in Python

Sample summary task

Summary

Ansible for Network Automation

Ansible overview and terminology

Summary

Continuous Integration for Network Engineers

Interaction with Splunk

Automation examples on various technology domains

Example and use case

Summary

SDN Concepts in Network Automation

Managing cloud platforms

Programmable network devices

Controller-based network fabric

Network automation tools

Summary

Customer Reviews

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Ansible overview and terminology

Ansible is an automation tool or platform, which is available as open source, and used to configure devices such as routers, switches, and various types of servers. Ansible's primary purpose is to configure three main type of tasks:

Configuration management: This is used to fetch and push configs on various devices that we call as inventory in Ansible. Based upon the type of inventory, Ansible is capable of pushing in bulk specific or full configs.
Application deployment: In server scenarios, many a time we need to bulk deploy some specific applications or patches. Ansible takes care of that as well as bulk uploading patches or applications on the server, installing on them, and even configuring the applications of a particular task. Ansible can also take care of customizing settings based upon the devices in the inventory.
Task...