VLAN Management
Multicast TV VLAN
SPS208G/SPS224G4/SPS2024 Service Provider Switches User Guide 67
4
The
Multicast TV Membership Screen
contains the following fields:
• Multicast TV VLAN ID — Defines the Multicast TV VLAN whose port
membership is displayed.
• Receiver Ports — Indicates the interfaces which can only receive traffic
from the VLAN.
• Transc eiver Por ts — Indicates the interfaces which can both transmit traffic
to and receive traffic from the VLAN.
STEP 2 Select the active Multicast TV VLAN. The interfaces which are members of the
VLAN are displayed.
Multicast TV VLAN
Multicast TV allows subscribers to join the same Multicast stream, even if the
subscribers are not members of the same VLAN, eliminating television traffic
duplication. The
Multicast TV VLAN Screen
assigns ports in Customer mode (see
“Port Settings”
) to a Multicast TV VLAN. This is required to supply Multicast
transmissions to Level 2-isolated subscribers, without replicating the Multicast
transmissions for each subscriber VLAN.
Any VLAN can be a Multicast TV VLAN. A port assigned to a Multicast TV VLAN:
• Joins the Multicast TV VLAN.
• Packets passing through egress ports in the Multicast TV VLAN are
untagged.
• The port’s Frame Type parameter is set to Admit All, allowing untagged
packets (see
“Port Settings”
).
The Multicast TV VLAN configuration is defined per port. Multicast TV VLAN has
been implemented to resemble
Multicast VLAN Registration
(MVR), which is the
industry standard.
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