angelacooper•7d agoProlific Poster

Overheard a junior IT guy say "VLANs are just for organization" and had to bite my tongue

Was standing behind two guys at a coffee shop in Portland last week, and one of them was explaining to his buddy how they just use VLANs to "keep things neat." I almost choked on my latte lol. Like yeah, they help with organization, but the real win is security and broadcast domain isolation. Has anyone else heard some wild oversimplifications from newer folks in the field?

2 comments

2 Comments

emma3497d ago

VLANs are just for organization" - man, that one hurts. I get where he's coming from but it's way more than that. Security is the big one for me, keeping different departments or sensitive systems from talking to each other. Also broadcast domains get nasty fast in a flat network, VLANs keep that noise contained. Organized traffic is nice but it's really about control and isolation.

thea_knight7d agoMost Upvoted

VLANs also help with compliance auditing. If you need to prove that sensitive patient records or payment data are isolated from the rest of the network, having those logical separations makes the auditors way happier than trying to explain a flat LAN. Plus, if you ever need to move a physical device to a different switch port for patching or upgrades, keeping the VLAN assignment means zero reconfiguration for the device itself. That saves a bunch of headaches when the floor plan changes.