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Updated:December 13, 2018
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Configure Customer Premises Equipment (CPE) to a Virtual Local Area Network (VLAN) on a Switch
A Virtual Local Area Network (VLAN) allows you to logically segment a Local Area Network (LAN) into different
broadcast domains. In scenarios where sensitive data may be broadcast on a network, VLANs can be created to
enhance security by designating a broadcast to a specific VLAN. Only users that belong to a VLAN are able to
access and manipulate the data on that VLAN. VLANs can also be used to enhance performance by reducing the need
to send broadcasts and multicasts to unnecessary destinations.
Multicast TV VLANs enable multicast transmissions to subscribers who are not on the same data VLAN without
replicating the multicast transmission frames for each subscriber VLAN. Subscribers who are not on the same data
VLAN and are connected to the device with different VLAN ID membership can share the same multicast stream by
joining the ports to the same Multicast VLAN ID.
Transmission of Multicast traffic among the users on different VLANs without duplicating the multicast traffic
for each user VLAN is possible with the help of a Multicast TV VLAN. The duplication of multicast traffic could
lead to a large amount of traffic which can affect the performance of the device in the network.
The Customer Premises Equipment (CPE) Multiplexer has multiple access ports that facilitate the user to connect
to the different broadband services such as high-speed Internet access, video, voice over a single broadband
connection, and an uplink port that is connected to access switch. Each service type is associated to different
VLANs in order to differentiate the service types. Therefore, each service type has a unique VLAN ID. It is
necessary to map the CPE VLAN to the Multicast TV VLAN.
This article provides instructions on how to configure a CPE VLAN to Multicast VLAN on a switch.
Note: To know how to map multicast groups to VLANs, click here