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8.2.2 Advanced
8.2.2.1 VLAN
A virtual LAN (VLAN) is any broadcast domain that is partitioned and isolated in a
computer network at the data link layer (OSI layer 2). LAN is an abbreviation of local area
network. VLANs allow network administrators to group hosts together even if the hosts
are not on the same network switch. This can greatly simplify network design and
deployment, because VLAN membership can be configured through software. Without
VLANs, grouping hosts according to their resource needs necessitates the labor of
relocating nodes or rewiring data links.
Note: About how to set up VLAN in switches, please refers to your switches user manual.
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