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VLAN.

Also written Virtual LAN, 802.1Q tagging, Network segmentation.

What is a VLAN and why segment a network?

A VLAN, or virtual local area network, divides one physical switch into separate networks whose traffic never mixes. Under IEEE 802.1Q each frame carries a tag, and 4094 usable tag values mean one cable can carry thousands of networks. Put cameras, guest Wi-Fi and office machines on their own VLANs, and buy a managed switch, because only managed hardware can create them.

Defined by IEEE 802.1Q, which defines the tag and its 4094 usable VLAN identifiers, published by IEEE.

28 Port Gigabit / Managed Switch (DGS-1210-28/IN), a VLAN part supplied by Data Systems
VLAN in the catalogue: 28 Port Gigabit / Managed Switch (DGS-1210-28/IN), DGS-1210-28/IN. Catalogue photograph.

Published by Data Systems, network material suppliers in Secunderabad, Hyderabad since 1984, which is forty years of experience with these parts. Written from the standards named above. Last checked 2026-08-14. How we check this, and what we got wrong.

Data Systems, a network material supplier in Secunderabad, Hyderabad since 1984 with branches in Vijayawada and Visakhapatnam, supplies VLAN across India through official channels. Send a list, get one quote.

DES Series

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