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5.9 VLAN Configuration
A Virtual LAN (VLAN) is a logical network grouping that limits the broadcast
domain. It allows user to isolate network traffic so only members of the VLAN
receive traffic from the same VLAN members. Basically, creating a VLAN
from a SP3508A is logically equivalent of reconnecting a group of network
devices to another Layer 2 switch. However, all the network devices are still
plug into the same SP3508A physically. The VDSL Switch supports port-
based and protocol-base VLAN in web management page. In the default
configuration, VLAN support is enabling and all ports on the SP3508A belong
to default VLAN (VID: 1).
Support Multiple VLAN (IEEE 802.1Q VLAN)
Port-based Tagging rule VLAN is an IEEE 802.1Q specification standard.
Therefore, it is possible to create a VLAN across devices from different
SP3508A venders. IEEE 802.1Q VLAN uses a technique to insert a “tag” into
the Ethernet frames. Tag contains a VLAN Identifier (VID) that indicates the
VLAN numbers.
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