Three-Tier Campus LAN Design
The three-tier LAN design consists of three hierarchical layers:
Access Layer
Distribution Layer
Core Layer
Core Layer
Connects Distribution Layers together in large LAN networks.
The focus is speed ('fast transport').
CPU-intensive operations such as security. QoS marking/classification, etc, should be avoided at this Layer.
Connections are all Layer 3. No spanning-tree!
Should maintain connectivity throughout the LAN even if devices fail.
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