Milan Technology MIL-SME801P - Manual (Page 125)

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5-4-7. VLAN Configuration
A Virtual LAN (VLAN) is a logical network grouping that limits the broadcast
domain. It allows you to isolate network traffic so only members of the VLAN
receive traffic from the same VLAN members. Basically, creating a VLAN
from a switch is logically equivalent of reconnecting a group of network
devices to another Layer 2 switch. However, all the network devices are still
plugged into the same switch physically.
The MIL-SME801P switch supports port-based, 802.1Q (tag-based) and
protocol-based VLANs. VLAN support is Disabled and all ports belong to a
single broadcast domain by default.
NOTE: Rebooting the switch is necessary for changes to take effect.