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4-232
4
Related Commands
ip igmp version (4-232)
ip igmp query-interval (4-230)
ip igmp last-memb-query-interval
This command configures the last member query interval. Use the no form of this
command to restore the default.
Syntax
ip igmp last-memb-query-interval seconds
no ip igmp last-memb-query-interval
seconds - The report delay for the last member query. (Range: 1-255)
Default Setting
1 second
Command Mode
Interface Configuration (VLAN)
Command Usage
• A multicast client sends an IGMP leave message when it leaves a group. The
router then checks to see if this was the last host in the group by sending an
IGMP query and starting a timer based on this command. If no reports are
received before the timer expires, the group is deleted.
• This value may be tuned to modify the leave latency of the network. A reduced
value results in reduced time to detect the loss of the last member of a group.
Example
The following shows how to configure the maximum response time to 10 seconds:
ip igmp version
This command configures the IGMP version used on an interface. Use the no form
of this command to restore the default.
Syntax
ip igmp version {1 | 2}
no ip igmp version
• 1 - IGMP Version 1
• 2 - IGMP Version 2
Default Setting
IGMP Version 2
Console(config-if)#ip igmp last-memb-query-interval 10
Console(config-if)#