VLANs have stumped me for the longest time. They are a requirement for networksegmentation, but couldn’t you also achieve that by subnetting? What is therelationship between a VLAN and a subnet? Are they the same thing? In this post,I attempt to answer these and some other questions. The LAN A LAN is a layer-2 broadcast segment. That means that layer-2 devices, such asswitches, will flood broadcasts, unknown multicasts and multicasts (BUM) outof every interface except the one they received ...
