Network Design Info

Using VLANs to isolate sensitive departments (like Finance or R&D) from the rest of the network. This prevents "lateral movement" if one device is compromised.

We are moving away from purely hardware-centric designs toward . SD-WAN allows companies to manage their network via software, automatically routing traffic over the most efficient path (e.g., using a cheap internet connection for basic apps and a private line for critical data). Additionally, "Hybrid" designs now integrate local office hardware seamlessly with cloud providers like AWS or Azure, treating the cloud as an extension of the local data centre. Conclusion network design

A "solid" design anticipates growth. This involves using modular hardware and a structured IP addressing scheme (IPv6 or CIDR) that allows for easy expansion without reconfiguring the entire system. Using VLANs to isolate sensitive departments (like Finance

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. SD-WAN allows companies to manage their network via

Modern networks assume the perimeter is porous. Design-level security includes: