My journey with Network & Cloud Automation
This post is going to talk about the ways you could use to access the end devices through the jump server or a proxy server. I am going to use Netmiko which is my all-time favorite tool whenever I need to programmatically interact with network devices. Let’s see how we can leverage Netmiko SSH proxy…
Off late I have been required to access the network devices through a JumpHost. One of the easiest methods to do this was using python’s netmiko module. My setup looks like this Windows Machine ——- SSH tunnel ——- Linux JumpHost ——-SSH to ——- Network Devices Here are the basic steps that I followed to get…
We have already seen in theory how all of the above differ and where each of them is applicable and useful. In this post, I will try to demonstrate the same concept using practical examples. I could have spun up tens of devices in GNS3/Eve-ng but I figured just using manual delays to simulate the…
I have been using a multi-threaded version of the synchronous codes that we usually see to interact with devices and for over a year now and I have a network of nearly 28k devices (routers / switches / WLCs / FWs ) that I need to manage. With that multithreaded version, I was able to…
Up until now, we have been establishing connections to devices sequentially, i.e If you have 10 devices from which you want to pull show version data, the script will connect to device1, extract show version, goto device2, extra show version, connect to the device and extract show version and so on until all devices are…
In Part 1 of this series, we saw how to establish a connection with network devices using python netmiko and fetch command outputs. In this post, we will see how to enter into enable mode and also configure cisco devices using python netmiko programmatically. If you are new to netmiko, please read Part1 here For…
In the previous post, we have seen how to leverage the TEXTFSM parser with netmiko. In this post, we will see how to install and parse data with Netmiko Genie plugin into a formatted data structure that we can easily export to a datasheet. List of available GENIE PARSERS. Step1:- Install pyats and netmiko You…
The foremost is to be setup TextFSM correctly for Netmiko to work. The official site (Netmiko & NTC )explains a method that didn’t really work for me. I have tried to set up TextFSM using pip install ntc_templates and also using git clone but none of them particularly worked for me out of the box….
In this post, we are going to cover the very basics of Netmiko. This is a beginner-level introduction on how to automate networking devices using python netmiko in which we will talk about how to install and set up SSH to network devices using python. Also how to write a basic script for interacting with devices…