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7 multicast filter – Interlogix NS3500-28T-4S User Manual User Manual

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Figure 4-7-35

IGMP Port Max Groups Information Page Screenshot

The page includes the following fields:

Object

Description

Port

The switch port number of the logical port.

Max Groups

Display the current Max groups.

Action

Display the current action.

4.7.7 Multicast Filter

In certain switch applications, the administrator may want to control the multicast services that are available to end

users. For example, an IP/TV service is based on a specific subscription plan. The multicast filtering feature fulfills this

requirement by restricting access to specified multicast services on a switch port.

Multicast filtering enables you to assign a profile to a switch port that specifies multicast groups that are permitted or

denied on the port. A multicast filter profile can contain one or more, or a range of multicast addresses; but only one

profile can be assigned to a port. When enabled, multicast join reports received on the port are checked against the

filter profile. If a requested multicast group is permitted, the multicast join report is forwarded as normal. If a requested

multicast group is denied, the multicast join report is dropped.

When you have created a Multicast profile number, you can then configure the multicast groups to filter and set the