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Multicast Filtering Commands
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Command Mode
Interface Configuration (VLAN)
Command Usage
• All routers on the subnet must support the same version. However, the
multicast hosts on the subnet may support either IGMP version 1 or 2.
• The switch must be set to version 2 to enable the ip igmp max-resp-interval
(page 4-231).
Example
The following configures the switch to use IGMP Version 1 on the selected interface:
show ip igmp interface
This command shows the IGMP configuration for a specific VLAN interface or for all
interfaces.
Syntax
show ip igmp interface [vlan vlan-id]
vlan-id - VLAN ID (Range: 1-4094)
Default Setting
None
Command Mode
Normal Exec, Privileged Exec
Example
The following example shows the IGMP configuration for VLAN 1, as well as the
device currently serving as the IGMP querier for this multicast service.
Console(config-if)#ip igmp version 1
Console(config-if)#
Console#show ip igmp interface vlan 1
Vlan 1 is up
IGMP is enable, version is 2
Robustness variable is 2
Query interval is 125 sec
Query Max Response Time is 10 sec, Last Member Query Interval is 1 sec
Querier is 10.1.0.253
Console#