C
HAPTER
39
| Multicast Filtering Commands
IGMP Filtering and Throttling
– 1228 –
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
â—† 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.
â—† IGMP filtering and throttling only applies to dynamically learned
multicast groups, it does not apply to statically configured groups.
â—† 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 profile Displays IGMP profiles and settings PE
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 158: IGMP Filtering and Throttling Commands (Continued)
Command Function Mode
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