Enterprise WiFi Controller Architecture — Cisco Aruba WLAN Design

Enterprise WiFi Controller Architecture: Cisco and Aruba WLAN Design

Enterprise WiFi Controller Architecture: Cisco and Aruba WLAN Design This article is part of the Enterprise WiFi series. New to enterprise wireless? Start with the overview: Enterprise WiFi Architecture: From Standards to Deployment Why Controller Architecture Matters An access point is just a radio transmitter. What makes it part of an enterprise network — with consistent policy, seamless roaming, centralized management, and security integration — is the controller architecture behind it. ...

April 17, 2026 · 11 min · Barash Helvadzhaoglu
Switch, Firewall, AP — Why Choosing the Right Products Is Not Enough

Switch, Firewall, AP — Why Choosing the Right Products Is Not Enough

Switch, Firewall, AP — Why Choosing the Right Products Is Not Enough Architecture, capacity planning, and the vendor reality no one talks about Most enterprise network projects start at the same point: product selection. And most of them break at the same point: products that do not work well together. Because what we call a “core network” is not three boxes (switch, firewall, access point) standing side by side; it is those three boxes carrying identity together, producing segmentation together, enforcing policy together, and most importantly, sustaining operations together. ...

January 2, 2026 · 17 min · Barash Helvadzhaoglu
IT Infrastructure Is Not a Collection of Products — It's a System

IT Infrastructure Is Not a Collection of Products — It's a System

This foundational article explains why IT infrastructure should be designed as an integrated system rather than a set of disconnected products, forming the baseline for the Core Network series.

January 1, 2026 · 5 min · Barash Helvadzhaoglu