Reference Guide

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.
ip igmp snooping flood
This command controls the flooding behavior of unregistered multicast data packets.
S5000
Syntax
ip igmp snooping flood
Defaults Enabled.
Command
Modes
CONFIGURATION
Command
History
Version 9.0(1.3) Introduced on the S5000.
Usage
Information
On the S5000, unregistered multicast data traffic drops when you disable flooding;
it does not forward the packets to multicast router ports. On the S5000, you must
also disable Layer 3 multicast (no ip multicast-routing) in order to disable
Layer 2 multicast flooding.
508
Internet Group Management Protocol (IGMP)