Chapter 24
| Multicast Filtering Commands
IGMP Filtering and Throttling
ā 691 ā
ip igmp filter
(Global Configuration)
This command globally enables IGMP filtering and throttling on the switch. Use the
no form to disable the feature.
Syntax
[no] ip igmp filter
Default Setting
Disabled
Command Mode
Global Configuration
Command Usage
ā IGMP filtering enables you to assign a profile to a switch port that specifies
multicast groups that are permitted or denied on the port. An IGMP 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, IGMP join reports received on the
port are checked against the filter profile. If a requested multicast group is
permitted, the IGMP join report is forwarded as normal. If a requested multicast
group is denied, the IGMP join report is dropped.
ā IGMP filtering and throttling only applies to dynamically learned multicast
groups, it does not apply to statically configured groups.
ā The IGMP filtering feature operates in the same manner when MVR is used to
forward multicast traffic.
Example
Console(config)#ip igmp filter
Console(config)#
show ip igmp query-drop Shows if the interface is configured to drop IGMP query
packets
PE
show ip igmp throttle
interface
Displays the IGMP throttling setting for interfaces PE
show ip multicast-data-
drop
Shows if the interface is configured to drop multicast data
packets
PE
Table 129: IGMP Filtering and Throttling Commands (Continued)
Command Function Mode
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