Command Line Reference Guide

Defaults Disabled.
Command Modes
• CONFIGURATION
• INTERFACE VLAN
Command History
Version 9.0(1.3) Introduced on the S5000.
Usage
Information
You must enter this command to enable IGMP snooping. When you enable this from
CONFIGURATION mode, IGMP snooping enables on all VLAN interfaces (except the default
VLAN).
NOTE: You must execute the no shutdown command on the VLAN interface for IGMP
Snooping to function.
Related
Commands
shutdown – (no shutdown) activates an interface.
ip igmp snooping fast-leave
Enable IGMP snooping fast-leave for this VLAN.
S5000
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 9.0(1.3) Introduced on the S5000.
Usage
Information
Queriers normally send a certain number of 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.
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