Users Guide

Version Description
9.2(0.0) Introduced on the M I/O Aggregator.
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 flood
This command controls the flooding behavior of unregistered multicast data packets. When flooding is disabled, unregistered multicast
data traffic is forwarded to only multicast router ports in a VLAN. If there is no multicast router port in a VLAN, unregistered multicast data
traffic is dropped.
Syntax
ip igmp snooping flood
To disable the flooding, use the no ip igmp snooping flood command.
Parameters Enabled
Command Modes CONFIGURATION
Supported Modes All Modes
Command History
Version Description
9.9(0.0) Introduced on the FN IOM.
9.4(0.0) Supported on the FN I/O Aggregator.
8.3.17.0 Supported on the M I/O Aggregator.
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.
Defaults 1000 milliseconds
Command Modes INTERFACE VLAN
Supported Modes Programmable-Mux (PMUX)
Command History
Version Description
9.9(0.0) Introduced on the FN IOM.
184 Internet Group Management Protocol (IGMP)