This article explains VLAN concepts, using classroom analogies, then details single‑arm routing, layer‑3 switches, gateways, DNS, MAC addresses, and subnet masks, illustrating how network segmentation improves efficiency and how devices communicate across different broadcast domains.
This article explains the differences between Layer 2 and Layer 3 switches, how ARP resolves MAC addresses, the impact of collisions and broadcast domains, and how VLANs and switch port configurations can be used to segment and secure modern Ethernet networks.
This article explains the differences between Layer‑2 and Layer‑3 switches, how ARP resolves MAC addresses, the impact of collisions and broadcast domains, the role of VLANs in segmenting networks, and provides step‑by‑step configuration commands for both switch types.
This guide explains how to set up separate VLANs for technical and sales departments, configure PCs and both layer‑2 and layer‑3 switches, assign IP addresses, and verify inter‑VLAN communication using routing on a layer‑3 switch.
This article explains networking fundamentals such as VLANs, single‑arm routing, layer‑3 switches, gateways, DNS, MAC addresses, IP addressing, and subnet masks, using simple analogies and examples to illustrate how devices communicate across different network segments.
