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4-292
4
Example
The following shows the multicast entries learned through IGMP snooping for
VLAN 1:
IGMP Query Commands (Layer 2)
This section describes commands used to configure Layer 2 IGMP query on the
switch.
ip igmp snooping querier
This command enables the switch as an IGMP querier. Use the no form to disable it.
Syntax
[no] ip igmp snooping querier
Default Setting
Enabled
Command Mode
Global Configuration
Command Usage
• IGMP snooping querier is not supported for IGMPv3 snooping (see ip igmp
snooping version, page 4-289).
• If enabled, the switch will serve as querier if elected. The querier is
responsible for asking hosts if they want to receive multicast traffic.
Console#show mac-address-table multicast vlan 1 igmp-snooping
VLAN M'cast IP addr. Member ports Type
---- --------------- ------------ -------
1 224.1.2.3 Eth1/11 IGMP
Console#
Table 4-76 IGMP Query Commands (Layer 2)
Command Function Mode Page
ip igmp snooping querier Allows this device to act as the querier for IGMP snooping GC 4-292
ip igmp snooping
query-count
Configures the query count GC 4-293
ip igmp snooping
query-interval
Configures the query interval GC 4-293
ip igmp snooping
query-max-response-time
Configures the report delay GC 4-294
ip igmp snooping
router-port-expire-time
Configures the query timeout GC 4-295