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VDSL SERIES
CTC Union
33
4-4-7. VLAN configurations
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 plug into the same switch physically.
The VDSL SWITCH support port-based and 802.1Q (tagged-based) VLAN in web management
page.
In the default configuration, VLAN support is disable.
NOTE:
If you change VLAN Operation Mode from No VLAN to 802.1Q, you must wait 50 seconds.
Change VLAN mode for every time, you have to reboot the VRM01/24 for valid value.
Support Port-based VLAN
Packets can go among only members of the same VLAN group. Note all unselected ports are
treated as belonging to another single VLAN. If the port-based VLAN enabled, the VLAN-tagging
is ignored.
Support Tag-based VLAN (IEEE 802.1Q VLAN)
Tagged-based VLAN is an IEEE 802.1Q specification standard. Therefore, it is possible to create
a VLAN across devices from different switch 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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