This article explains the concepts and inner workings of network hubs, switches, and routers, covering their roles across OSI layers, the differences between them, and how devices communicate using MAC and IP addresses, with practical examples and diagrams.
This article explains the evolution from simple hubs to intelligent switches and routers, covering the OSI layers, LAN setup, MAC and IP addressing, ARP, crossover cabling, and the internal structures that enable reliable data transmission in modern networks.
This guide details eight common network problems—from switches that won’t communicate after power‑up to IP address conflicts—explaining their symptoms, root causes, and step‑by‑step solutions for reliable LAN performance.
This article walks through the evolution and functions of home networking hardware—starting with the basic hub, moving to switches that use MAC tables, and culminating with routers that connect multiple networks—helping readers choose the right devices for their home setup.
These eight network troubleshooting cases cover issues such as a newly powered switch failing to forward traffic, a 5‑port switch using only four ports, persistent COL‑light collisions, gigabit upgrade instability, slow link speeds from broadcast storms, Windows file‑sharing permission problems, hub‑router connectivity failures, and IP address conflicts, each with analysis and practical solutions.
This article explains the basic networking devices and concepts—including hubs, switches, routers, gateways, routing, static vs. dynamic routing, routing tables, and the differences between bridging and routing—illustrated with diagrams and step‑by‑step examples to clarify how data moves across networks.
