Reference Guide
Usage 
Information
Querier normally sends some group-specific queries when a leave message is 
received for a group prior to deleting a group from the membership database. 
There may be situations when you require immediate deletion of a group from the 
membership database. This command provides a way to achieve the immediate 
deletion. In addition, this command provides a way to enable immediate-leave 
processing
 for specified groups.
ip igmp last-member-query-interval
Change the last member query interval, which is the Max Response Time inserted into Group-Specific 
Queries sent in response to Leave Group messages. This interval is also the interval between Group-
Specific Query messages.
S4820T
Syntax
ip igmp last-member-query-interval milliseconds
To return to the default value, use the no ip igmp last-member-query-
interval
 command.
Parameters
milliseconds Enter the number of milliseconds as the interval. The range is 
from 100 to 65535. The default is 
1000 milliseconds.
Defaults 1000 milliseconds
Command 
Modes
INTERFACE
Command 
History
This guide is platform-specific. For command information about other platforms, 
refer to the relevant Dell Networking OS Command Line Reference Guide.
The following is a list of the Dell Networking OS version history for this command.
Version 9.2(0.0) Introduced on the M I/O Aggregator. This command is 
supported in Programmable-Mux (PMUX) mode only.
Version 9.0.2.0 Introduced on the S6000.
Version 
8.3.19.0
Introduced on the S4820T.
Version 8.3.11.1 Introduced on the Z9000.
Version 8.3.7.0 Introduced on the S4810.
Version 7.8.1.0 Introduced on the S-Series.
Version 7.7.1.0 Introduced on the C-Series.
E-Series legacy 
command
716
Internet Group Management Protocol (IGMP)










