Network Design ❲2025-2027❳

High availability is non-negotiable. Designers use dual-homing (connecting a switch to two upstream devices) and protocols like STP (Spanning Tree Protocol) or LACP (Link Aggregation Control Protocol) to ensure that if one cable or switch fails, the network stays live.

Designing a robust network is the digital equivalent of architectural engineering. It requires a balance between immediate performance, long-term scalability, and rigorous security. A solid network design is not just about connecting devices; it is about creating a resilient ecosystem that ensures data flows efficiently and securely under varying loads. 1. The Foundation: Hierarchical Design network design

Modern networks assume the perimeter is porous. Design-level security includes: High availability is non-negotiable

The "interchange." This layer implements policies, routing between VLANs (Virtual Local Area Networks), and security filtering. It bridges the high-speed core with the user-facing access layer. network design