Ip Igmp Snooping Vlan Immediate-Leave - Cisco Catalyst 2950 Command Reference Manual
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ip igmp snooping vlan immediate-leave
ip igmp snooping vlan immediate-leave
Use the ip igmp snooping immediate-leave global configuration command to enable Internet Group
Management Protocol (IGMP) Immediate-Leave processing on a VLAN interface. Use the no form of
this command to disable Immediate-Leave processing on the VLAN interface.
Syntax Description
vlan-id
Defaults
IGMP Immediate-Leave processing is disabled.
Command Modes
Global configuration
Command History
Release
12.0(5.2)WC(1)
Usage Guidelines
Use the Immediate-Leave feature only when there is only one IP multicast receiver present on every port
in the VLAN. The Immediate-Leave configuration is saved in nonvolatile RAM (NVRAM).
The Immediate-Leave feature is supported only with IGMP version 2 hosts.
Examples
This example shows how to enable IGMP Immediate-Leave processing on VLAN 1:
Switch(config)# ip igmp snooping vlan 1 immediate-leave
This example shows how to disable IGMP Immediate-Leave processing on VLAN 1:
Switch(config)# no ip igmp snooping vlan 1 immediate-leave
You can verify your settings by entering the show ip igmp snooping vlan privileged EXEC command.
Related Commands
Command
ip igmp snooping
ip igmp snooping vlan mrouter
show ip igmp snooping
ip igmp snooping vlan static
show mac address-table multicast
Catalyst 2950 Desktop Switch Command Reference
2-76
ip igmp snooping vlan vlan-id immediate-leave
no ip igmp snooping vlan vlan-id immediate-leave
VLAN ID value. The range is between 1 to 4094 when the enhanced
software image (EI) is installed and 1 to 1001 when the standard software
image (SI) is installed. Do not enter leading zeros.
Modification
This command was first introduced.
Description
Enables IGMP snooping.
Configures a Layer 2 port as a multicast router port.
Displays the IGMP snooping configuration.
Configures a Layer 2 port as a member of a group.
Displays the Layer 2 multicast entries for a VLAN.
Chapter 2
Cisco IOS Commands
78-11381-05
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