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Personal Blog.

I’m Richard Killeen, a Network Automation and Network Engineer working in the ISP space in North West England.

This site documents my journey through the CCIE Service Provider certification, network automation tooling like Ansible and pyATS, and real-world routing labs using Cisco IOS-XR and Junos.

I share workbooks, scripts, EVE-NG topologies, and blog posts aimed at engineers, students, and automation enthusiasts.

If you’re studying for CCNP, CCIE, or looking to streamline network operations, you’ll find practical content here that goes beyond theory.

You will find on my GitHub links to many labs and scripts that can be reused as well as many downloadable resources located within my blog posts.

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image of richard killeen who wishes to teach network automation and cisco ccie / ccnp service provider

CCNP / CCIE Posts

Discover informative articles on Cisco Service Provider technologies and stay updated with development that can ignite your learning.

Follow along with bespoke videos and workbooks designed to explain and demonstrate a vast array of networking consepts and all resources are freely provided.

CCnp / CCIE Posts

Network Automation

Offering a platform to navigate the ever changing would of Automation, from explainer guides to working scripts for pyATS, Ansible and more.

If automation sparks your intrest then you should find some helpful guides, I will be providing full labs for Ansible, pyATS, Netconf and much more and together we can smash it

network Automation Posts

Python

We are all network engineers and are at home on the CLI regardless of vendor. In todays world we also need to know Python and together we will brave it.

Python training will be structured with networking and automation in mind, no more learning ‘Hello World’ instead all examples will be network based and will showcase real world examples

Python Posts

Follow along with the Networking journey

Follow me on social and never miss a post from this blog. Only original content and minimalist views, shared on social.

My YouTube Play Lists

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Main blog image for Python for Network Engineers Blog 18 Python if statements showing a Python if statement code example and a network diagram with router, switch, host, and admin laptop

Python for Network Engineers blog 18: Python if statements

Python If Statements, Making Decisions That Actually Matter Right, so you’ve got variables, da…

main blog image for Python for Network Engineers Blog 17 Python Bitwise Operators

Python for Network Engineers Blog 17: Python Bitwise Operators

Stop Learning Binary with Silly Calculator Examples Right, so you’ve got arithmetic operators …

python Logical Operators main blog image showing the python logo and the name of the post

Python for Network Engineers Blog 16: Logical Operators

Python Logical Operators – Stop Checking Voting Eligibility Right, so you’ve got compari…

Main blog header image for Python for Network Engineers Blog 15: Python Comparison Operators, featuring Python logo and comparison operators in a clean, wide, uncropped layout

Python for Network Engineers Blog 15: Python Comparison Operators

Stop Comparing Age and Height Right, so you’ve got arithmetic operators working and maths calc…

Main blog image showing a network diagram with routers and switches, annotated with Python arithmetic operators code snippets calculating network metrics such as bandwidth, throughput, and interface errors

Python for Network Engineers Blog 14: Arithmetic Operators

Python Arithmetic Operators – Stop Calculating Pizza Slices Right, so you’ve got scienti…

main blog post image for the python Scientific Notation post showing different bandwidths in notation

Python for Network Engineers Blog 13: Scientific Notation

Python Scientific Notation – Stop Calculating Planetary Distances Right, so you’ve got v…