Tier architecture

Tier architecture refers to the way network components are organized and connected. In the video, two main types are discussed

Three-Tier Architecture:

Access Layer: Connects to end devices like PCs, laptops, and printers.

Distribution Layer: Interconnects access layer switches and provides a pathway to the core layer.

Core Layer: Ensures high-speed connectivity between distribution layers in different buildings or to the Internet.

Three Tier Architecture Network design

Two-Tier Architecture:

Collapsed Core: Combines the core and distribution layers into one, used in smaller environments.

Collapse Network Architecture Design

Spine-Leaf Design: Common in data centres, where leaf switches connect to servers and spine switches interconnect leaf switches for optimal traffic flow and redundancy.

Spine Leaf Network design