How Switches Are Classified: Protocols, Forwarding Layers, and Device Forms
Compare switch protocols, Layer 2/3 forwarding, management and installation dimensions independently. Check exact routing, PoE and environmental requirements by model.
Why Equipment Has a Weakest Link: Power Supplies, Capacitors and Long-Term Reliability
Understand the weakest-link analogy, supply paths, capacitor aging and cooling, and why MTBF or one thermal image cannot guarantee equipment lifetime.
What Does a Switch Do? From MAC Address Learning to VLAN Forwarding
Follow source-MAC learning, destination lookup and VLAN forwarding. Distinguish unknown-unicast flooding, routing and loop protection when accepting an industrial switch.
