Chapter 14
| Multicast Filtering
Filtering and Throttling IGMP Groups
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To show the multicast groups configured for an IGMP filter profile:
1. Click Multicast, IGMP Snooping, Filter.
2. Select Configure Profile from the Step list.
3. Select Show Multicast Group Range from the Action list.
4. Select the profile for which to display this information.
Figure 354: Showing the Groups Assigned to an IGMP Filtering Profile
Configuring IGMP
Filtering and
Throttling for
Interfaces
Use the Multicast > IGMP Snooping > Filter (Configure Interface) page to assign and
IGMP filter profile to interfaces on the switch, or to throttle multicast traffic by
limiting the maximum number of multicast groups an interface can join at the
same time.
Command Usage
◆ IGMP throttling sets a maximum number of multicast groups that a port can
join at the same time. When the maximum number of groups is reached on a
port, the switch can take one of two actions; either “deny” or “replace.” If the
action is set to deny, any new IGMP join reports will be dropped. If the action is
set to replace, the switch randomly removes an existing group and replaces it
with the new multicast group.
Parameters
These parameters are displayed:
◆ Interface – Port or trunk identifier.
An IGMP profile or throttling setting can be applied to a port or trunk. When
ports are configured as trunk members, the trunk uses the settings applied to
the first port member in the trunk.
◆ Profile ID – Selects an existing profile to assign to an interface.
◆ Max Multicast Groups – Sets the maximum number of multicast groups an
interface can join at the same time. (Range: 1-1024; Default: 1024)
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