C
HAPTER
38
| Multicast Filtering Commands
IGMP Filtering and Throttling
– 1216 –
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
◆ 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.
◆ IGMP filtering and throttling only applies to dynamically learned
multicast groups, it does not apply to statically configured groups.
◆ 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 156: IGMP Filtering and Throttling Commands (Continued)
Command Function Mode