Three-Tier Enterprise Campus Network

Network Design diagram · made in Skemio

Hierarchical three-tier network diagram showing Core, Distribution, and Access switch layers connecting down to workstations and IP phones.

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What it shows

Core layer provides non-blocking, high-speed backbone packet transport.
Distribution layer implements policy enforcement, ACLs, and VLAN boundaries.
Access layer delivers high port density, PoE, and 802.1X endpoint control.

The takeaway

Decouple campus networks into Core, Distribution, and Access layers for modularity and fault isolation.

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