Defining Igmp Snooping For Multicast Tv - D-Link xStack DXS-3250E Web/Installation Manual

DXS-3227, DXS-3227P, DXS-3250 and DXS-3250E EWS User Guide

Defining IGMP Snooping for Multicast TV

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. Ports which receive Multicast Transmissions, or Receiver
Ports, can be defined in any VLAN, and not just in the Multicast VLAN. Receiver ports can only receive Multicast
transmissions, they cannot initiate a Multicast TV transmission. Multicast TV source ports must be a Multicast
VLAN members.
IGMP messages are used to indicate which ports are requesting to join or leave the Multicast group.The IGMP
Snooping Mapping Page allows network administrators to define IGMP Snooping for Multicast TV groups. To
define IGMP Snooping for Multicast TV:
1. Click Advanced Setup > Multicast Support > Multicast TV > IGMP Snooping Mapping. The IGMP
Snooping Mapping Page opens:
Figure 172:IGMP Snooping Mapping Page
The IGMP Snooping Mapping Page contains the following fields:
•
VLAN — Defines the VLAN attached to the multicast group.
•
Multicast Group — Defines the Multicast group IP address mapped to the VLAN.
•
Remove — Removes Multicast TV IGMP mappings. The possible field values are:
–
Checked — Removes the specific IGMP mapping from the selected VLAN.
–
Unchecked — Maintains the IGMP mapping.
2. Define the fields.
3. Click . STP is enabled on the interface, and the device is updated.
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