IGMP Commands 589
ip igmp last-member-query-interval
Use the ip igmp last-member-query-interval command in Interface Configuration mode to 
configure the Maximum Response Time inserted in Group-Specific Queries which are sent in 
response to Leave Group messages.
Syntax
ip igmp last-member-query-interval 
tenthsofseconds
no ip igmp last-member-query-interval 
•
tenthsofseconds
  —  Maximum Response Time in tenths of a second (Range: 0-255)
Default Configuration
The default Maximum Response Time value is ten (in tenths of a second).
Command Mode
Interface Configuration (VLAN) mode
User Guidelines
This command has no user guidelines.
Example
The following example configures 2 seconds as the Maximum Response Time inserted in VLAN 
15’s Group-Specific Queries.
console(config)#interface vlan 15
console(config-if-vlan15)#ip igmp last-member-query-interval 20
ip igmp query-interval
Use the ip igmp query-interval command in Interface Configuration mode to configure the 
query interval for the specified interface. The query interval determines how fast IGMP Host-
Query packets are transmitted on this interface. 
Syntax
ip igmp query-interval 
seconds
no ip igmp query-interval 
•
seconds
 — Query interval. (Range: 1-3600)