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[>_] ROOM · Networking
Hierarchical Network Design
Master the industry-standard Three-Tier and Collapsed Core network models to build scalable, resilient enterprise infrastructures.
Room tasks
1What Is Hierarchical Network Design and Why Does It Matter
2Core, Distribution & Access Layers: A Comprehensive Guide
3Designing for Redundancy & High Availability
4Guided Lab: Designing a Three-Tier Campus Network
Frequently Asked Questions
What is the three-tier network model?
It splits a network into access, distribution and core layers. Access connects devices, distribution applies policy and aggregation, and the core moves traffic quickly between them.
What is a collapsed core design?
A collapsed core merges the core and distribution layers into one, which suits smaller campuses. It keeps the hierarchy's benefits with less hardware.
Why use a hierarchical design?
It simplifies troubleshooting, scaling and security by giving each layer a clear role. This free intermediate Codelivly room explains how to apply it.