Cisco Catalyst 4500 Series Command Reference Guide

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Catalyst 4500 Series Switch Cisco IOS Command Reference—Release IOS XE 3.4.0SG and IOS 15.1(2)SG)
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Chapter 2 Cisco IOS Commands for the Catalyst 4500 Series Switches
ip igmp snooping vlan immediate-leave
ip igmp snooping vlan immediate-leave
To enable IGMP immediate-leave processing, use the ip igmp snooping vlan immediate-leave
command. To disable immediate-leave processing, use the no form of this command.
ip igmp snooping vlan vlan_num immediate-leave
no ip igmp snooping vlan vlan_num immediate-leave
Syntax Description
Defaults Immediate leave processing is disabled.
Command Modes Global configuration mode
Command History
Usage Guidelines You enter this command in global configuration mode only.
Use the immediate-leave feature only when there is a single receiver for the MAC group for a specific
VLAN.
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 4:
Switch(config)# ip igmp snooping vlan 4 immediate-leave
Switch(config)#
This example shows how to disable IGMP immediate-leave processing on VLAN 4:
Switch(config)# no ip igmp snooping vlan 4 immediate-leave
Switch(config)#
Related Commands
vlan_num Number of the VLAN; valid values are from 1 to 4094.
immediate-leave Enables immediate leave processing.
Release Modification
12.1(8a)EW Support for this command was introduced on the Catalyst 4500 series switch.
12.1(12c)EW Support for extended addressing was added.
Command Description
ip igmp snooping Enables IGMP snooping.
ip igmp snooping vlan mrouter Configures a Layer 2 interface as a multicast router
interface for a VLAN.
ip igmp snooping vlan static Configures a Layer 2 interface as a member of a group.

Cisco Catalyst 4500 Series Specifications

General

Series	Catalyst 4500 Series
Category	Switch
Layer Support	Layer 2, Layer 3
Form Factor	Modular chassis
Stackable	No
Chassis Slots	3, 6, 7, 10
Power Supply Options	AC, DC
Redundancy	Power supply, Supervisor engine
Network Management	Cisco IOS Software CLI, SNMP, Cisco Prime Infrastructure
Features	Security, QoS
Port Density	Up to 384 ports per chassis
Security Features	802.1X, ACLs, DHCP Snooping, Dynamic ARP Inspection, IP Source Guard
Supervisor Engine	8-E