User’s Manual of GS-4210 Series
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 access
mode.
Command Usage
Each profile has only one access mode; either permit or deny.
When the access mode is set to permit, multicast join reports are processed when a multicast group falls within the
controlled range.
When the access mode is set to deny, multicast join reports are only processed when the multicast group is not in the
controlled range.
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