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ContainerLab Articles

Discover guides and tutorials on implementing
virtual labs with ContainerLab for efficient testing and practicing

ContainerLab 〡 Tutorials

How to Run Large Network Labs on GCP with netlab

Every network engineer hits the same wall eventually. You start with a tidy three-node lab on your laptop, then the design grows: a second region, a route reflector pair, a few VRFs, an EVPN fabric, m...
ContainerLab 〡 Tutorials

Netlab Architecture Explained: Guide to Features and Tool Comparisons

What Makes Netlab Architecture Special? Netlab’s architecture represents a fundamental shift from traditional network lab tools. While most solutions focus on graphical interfaces or vendor-spec...
ContainerLab 〡 Network Automation

What is Netlab and Why Network Engineers Should Care

In the world of network engineering, building test labs has always been a necessary evil. We’ve all been there – spending hours configuring devices, setting up IP addresses, and troubleshooting ...
ContainerLab 〡 Tutorials

ContainerLab for Network Automation Labs – Part 3: OSPF Topology with Automated Data Collection

Welcome to the final installment of our comprehensive Containerlab network automation series. In this part, we’ll build a simple lab featuring four routers running simple circular OSPF topology,...
ContainerLab 〡 Tutorials

ContainerLab for Network Automation Labs – Part 2: NetOps Server and Routing

Building on our ContainerLab foundation to create a complete network automation environment. In Part 1 of our ContainerLab series, we established a solid foundation by deploying Google Cloud VMs with ...
ContainerLab 〡 Tutorials

ContainerLab for Network Automation Labs – Part 1

Modern network automation requires safe, isolated environments for testing configurations and validating automation scripts. Google Cloud Platform combined with ContainerLab for Network Automation Lab...
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Nautobot icon

Nautobot

The central Source of Truth for network infrastructure data. Nautobot serves as:
Authoritative inventory database
IP address components tracking
Configuration template repository
Automation platform

Nornir

A Python automation framework specifically designed for network automation. Nornir provides:
High-performance concurrent task execution
Deep Python integration
Flexible inventory management
Fine-grained control over network operations
CI/CD

Orchestration & CD/CI

We integrate industry-standard orchestration tools to ensure reliable automation delivery:
Git-based version control
Automated pipelines
Controlled deployment workflows
Continuous integration practices

Ansible

An industry-standard automation platform that excels at network configuration management. We utilize Ansible for:
Network device configuration deployment
State validation and compliance checking
Integration with custom Python modules
Standardized workflow automation

Netbox

The central Source of Truth for network infrastructure data. NetBox serves as:
Authoritative inventory database
IP address components tracking
Configuration template repository
REST API provider for automation workflows

Python

The foundation of our automation framework, Python enables us to create modular, maintainable, and efficient network automation solutions. We leverage Python's extensive standard library and carefully selected packages to build:
Reusable automation components
Custom network management tools
API integrations
Data processing pipelines