Reference Guide

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
Control the flooding behavior of unregistered multicast data packets.
C9000 Series
Syntax
ip igmp snooping flood
Defaults Enabled.
Command Modes CONFIGURATION
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 Description
9.9(0.0) Introduced on the C9010.
9.5(0.1) Introduced on the Z9500.
9.0.2.0 Introduced on the S6000.
8.3.19.0 Introduced on the S4820T.
8.3.11.1 Introduced on the Z9000.
8.3.7.0 Introduced on the S4810.
8.2.1.0 Introduced on the C-Seris and S-Series.
7.7.1.0 Introduced on the E-Series.
Usage Information
On the C-Series and S-Series, unregistered multicast data traffic drops when you
disable flooding; they do not forward the packets to multicast router ports. On the
C-Series and S-Series, in order to disable Layer 2 multicast flooding, disable Layer 3
multicast (no ip multicast-routing).
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.
C9000 Series
Syntax
ip igmp snooping last-member-query-interval milliseconds
Internet Group Management Protocol (IGMP)
1075