Sign In Start Free Trial
Account

Add to playlist

Create a Playlist

Modal Close icon
You need to login to use this feature.
  • Book Overview & Buying Practical Network Automation
  • Table Of Contents Toc
  • Feedback & Rating feedback
Practical Network Automation

Practical Network Automation

By : Ratan
4.4 (8)
close
close
Practical Network Automation

Practical Network Automation

4.4 (8)
By: 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 (8 chapters)
close
close

Device OS upgrades


Sometimes we need to upgrade devices such as routers, switches, and firewalls. It is easy to perform upgrades on one device, but we need automation to upgrade multiple routers. Different devices have different ways of upgrading IOS or OS images, and the automation or scripts are created with different methods depending on the device.

Taking an example of upgrading a Cisco IOS router; there are two basic steps or tasks that need to be performed:

  1. Copy the relevant OS or IOS image into flash: or bootflash:.
  2. Change the config to reload the router with the new image.

Task 1: Prerequisites (to copy relevant OS or IOS image):

  • We need a FTP server that's accessible from the router and has the IOS image that we need on the router
  • We need the image, the correct MD5 checksum, and the image size for validation

The sample code for task 1 is as follows:

from netmiko import ConnectHandler
import time

def pushimage(imagename,cmd,myip,imgsize,md5sum=None):
    uname="cisco"
    passwd="cisco...

Unlock full access

Continue reading for free

A Packt free trial gives you instant online access to our library of over 7000 practical eBooks and videos, constantly updated with the latest in tech

Create a Note

Modal Close icon
You need to login to use this feature.
notes
bookmark search playlist download font-size

Change the font size

margin-width

Change margin width

day-mode

Change background colour

Close icon Search
Country selected

Close icon Your notes and bookmarks

Delete Bookmark

Modal Close icon
Are you sure you want to delete it?
Cancel
Yes, Delete

Delete Note

Modal Close icon
Are you sure you want to delete it?
Cancel
Yes, Delete

Edit Note

Modal Close icon
Write a note (max 255 characters)
Cancel
Update Note

Confirmation

Modal Close icon
claim successful

Buy this book with your credits?

Modal Close icon
Are you sure you want to buy this book with one of your credits?
Close
YES, BUY