Dell PowerEdge FX2/FX2s User Manual
Page 364

Defaults
Disabled.
Command
Modes
• CONFIGURATION
• INTERFACE VLAN
Command
History
Version 9.4(0.0)
Supported on the FN I/O aggregator. This command is
supported in Programmable-Mux (PMUX) mode only.
Usage
Information
To enable IGMP snooping, enter this command. When you enable this command
from CONFIGURATION mode, IGMP snooping enables on all VLAN interfaces
(except the default VLAN).
NOTE: Execute the no shutdown command on the VLAN interface for IGMP
Snooping to function.
ip igmp snooping fast-leave
Enable IGMP snooping fast-leave for this VLAN.
Syntax
ip igmp snooping fast-leave
To disable IGMP snooping fast leave, use the no igmp snooping fast-leave
command.
Defaults
Not configured.
Command
Modes
INTERFACE VLAN — (conf-if-vl-n)
Command
History
Version 9.4(0.0)
Supported on the FN I/O aggregator. This command is
supported in Programmable-Mux (PMUX) mode only.
Usage
Information
Queriers normally send some queries when a leave message is received prior to
deleting a group from the membership database. There may be situations when
you require a fast deletion of a group. When you enable IGMP fast leave
processing, the switch removes an interface from the multicast group as soon as it
detects an IGMP version 2 leave message on the interface.
ip igmp snooping last-member-query-interval
The last member query interval is the maximum response time inserted into Group-Specific queries sent
in response to Group-Leave messages.
Syntax
ip igmp snooping last-member-query-interval milliseconds
To return to the default value, use the no ip igmp snooping last-member-
query-interval command.
Parameters
milliseconds
Enter the interval in milliseconds. The range is from 100 to
65535. The default is 1000 milliseconds.
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