Learn Python For Network Engineers – This course is an eight week email course. Each week you will receive a lesson that includes a series of videos, some additional content and some exercises. I put the solutions to the exercises online. The course is mostly self-paced, with the exception of the weekly email cadence.
No, there is no lab environment as this is a free course. For all lessons except Class 6 (Netmico) you can complete the lessons without having access to network devices.
Learn Python For Network Engineers
This course is intended for network engineers who have basic programming skills (e.g. Perl, shell scripting, other languages) and want to learn Python. The course covers Python basics but uses examples and exercises more relevant to network engineers.
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Python makes it easy to write clean, readable code and is native to Linux and macOS. Python has received widespread support from engineers and vendors in the networking community. Python has a large, active community, and as such, many resources are available to you (libraries, documentation, books, tutorials, etc.).
The course is free so unsubscribe from the email list if you are not satisfied with the lessons or our other content.
Kirk Byers is the founder of Twin Bridges Technology – a company specializing in network automation training. He is the creator of the Netmiko Python library and one of the maintainers of the NAPALM project. He teaches Python, Ansible, and Nornir courses for network engineers and writes about network automation. He is a veteran network engineer (CCIE #6243 emeritus), has extensive *nix system administration experience and is a Python programmer. He is interested in programming and networks and how to improve network engineering practices through automation.
Zach is an extraordinary programmer. His preferred language is Python. He loves programming and is a big fan of games like Magic the Gathering, Roblox, Dungeons and Dragons and Terraforming Mars.
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Jupiter is all dog. She loves being with her humans and loves her food (not necessarily in that order). She loves the water, the beach, hunts birds and meets new people. She is classified as an “aggressive chewer breed” and lives up to that category. If you are a network or systems engineer, you know how complex it is to create network configuration backups of a large number of network devices in your organization or business. . Suppose one day you suddenly see your routers/switches go down with no errors. And guess what, you haven’t logged into this device since the initial setup and don’t get a chance to look at it often, and you don’t know a lot of the configurations it contains. Now you are stuck in this situation and wondering what to put in the configs. So without configuration backups, you have no choice.
Ok, now we know we have a problem, but how do we fix it? As a solution, there are many network monitoring tools and configuration backup tools available on the internet to do all these tasks, but they can be costly. But what if you could find your own solution with just a few lines of script? This saves money and you have a completely customized solution.
In this post, I will help you to develop a full-fledged network configuration backup tool to backup configuration of Cisco devices (routers, switches, wireless controllers and firewalls) with a Python script using the Netmiko Automate Python module.
Python is one of the most popular languages for network automation, but Python alone cannot easily automate tasks. Luckily, someone has done a great job creating libraries or modules that handle the finer details of network automation with Python. So when you start automating, you should first get a basic understanding of Python scripting.
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Python libraries for network automation enable you to communicate and manage a large number of network devices in a simplified way. Several Python libraries/modules are available to perform network automation tasks, e.g. B. Paramiko, Netmiko and NAPALM. But in this article I use the Netmico Python library for network automation tasks.
The Netmiko library is an extended version of the Paramiko library. It is a multi-vendor library that simplifies SSH connection to a network device and performs a specific operation like command execution on the device.
You can find the library at https://github.com/ktbyers/netmiko and download the latest release version of the software here.
This Python script takes a list of device IP addresses from a JSON file. After the script imports the JSON file, it extracts the list of IP addresses and uses a for loop to connect to each device and copy the contents of the running configuration command.
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‘ and writes the content to a file on the server running the script. Finally, the script adds a datetime stamp to the file and places it in a separate directory for each device on the server running the script.
You can create a directory anywhere and put these two files together in the same directory. In my case I keep these 2 files inside
The script below is for Cisco routers, but will also work for Cisco switches. Please make sure to replace the keyword “router” with “switch” accordingly.
. Most likely this is the tftpboot location where the configuration backups of your network devices are stored. Also, grant the necessary permissions to access tftpboot.
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After completing the TFTP server setup above, you can proceed with the following script to secure your Cisco wireless controller. This script causes the wireless controller to upload the configuration backup to the TFTP server and once uploaded, copies the configuration file to the specified backup location (/root/Network_Device_Backups/WLC).
The vsftpd service will start automatically after the installation process is complete. Check the status of the service by running:
Here you still need to provide TFTP server details to send backups
Now we can run this Python device configuration backup script, but this script must be run with the following command.
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Finally, it’s time to add a cronjob to schedule this script to run at specific times of the day. All you have to do is copy your script to the daily/weekly/monthly folder in the following directory. Or add this script as below to run weekly at 01:00 AM.
This is all about automating the backup of Cisco devices network device configuration with a python script using the Netmico python module on a Linux server running Debian/Ubuntu. Hopefully you can find more details about the Netmiko Python module here. If you have any questions or suggestions, you can always leave your comments below. I will do my best to check and answer them.
I am Lakindu Jayasena and I have my B.Sc. in IT (Hons) (Computer Systems and Networks) and is currently working as a Senior Systems Engineer with more than 5 years of relevant experience in various technical fields such as Linux, Networks, Microsoft and Cloud Technologies. Automate your network infrastructure certification with Python for Network Engineers. Automation is the step your network is looking for to make your life as a network engineer easier. Python helps you eliminate unnecessary steps for your network. Python allows you to create scripts to automate complex network configurations. It is the most widely used programming language for software-defined networks and is a crucial skill for new network engineers.
This course teaches the fundamentals of network programming with Python—the theoretical building blocks that lead to great scripts. Learn the basics of the language, including objects and variables, strings, loops, and functions. Learn how to use lists, tuples, dictionaries, and integrate special Python libraries and modules like Netmiko and Telnetlib.
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Python has changed the career growth rate of automation and programming network engineers. Many of you wonder why network engineers need Python when they have other people doing the same job. If their organizations have people doing all the programming work, why would they put Python on their resume? The answer is that Python adds value to your resume.
A network engineer with Python is preferred over a pure network engineer, and we all know the competitive scenario we go through. There will soon come a time when these types of programming languages like JAVA, C++ and Python will be mandatory and essential. The salary is rising fast and Python has wider coverage in some foreign cities.
Python allows you to create scripts to automate complex network configurations. It is the most widely used programming language for software-defined networks and is a crucial skill for new network engineers. Learn the basics of the language, including objects and variables, strings, loops, and functions.
The Python language is one of the most popular programming languages nowadays. Network engineers can also benefit from this, which makes this talent highly sought after by employers. Well, as you know by now, coding is critical for network engineers today. However, the network engineer
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