Milan Technology MIL-SM2401M-STK - Manual (Page 173)

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7-4-7. 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-SM2401M-STK 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.
Port-based VLANs
Ethernet frames received on a port are sent only to ports belonging to the same
VLAN group of ports. All ports default belonging to the same VLAN group. The
VLAN information included in Ethernet frames tagged with VLAN IDs is ignored
by the switch in Port Based VLAN mode.