Deployment Guide

Version Description
8.3.11.1 Introduced on the Z9000.
8.3.7.0 Introduced on the S4810.
7.6.1.0 Introduced on the S-Series.
7.5.1.0 Introduced on the C-Series.
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
CONFIGURATION TERMINAL BATCH
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
9.10(0.0) Introduced the Configuration Terminal Batch mode on C9010.
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).
Use this command in Configuration Terminal Batch mode to control the flooding behavior in a dual-homing
setup.
Internet Group Management Protocol (IGMP) 881