Cisco Catalyst 2950 Command Reference

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Catalyst 2950 and Catalyst 2955 Switch Command Reference
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Chapter 2 Catalyst 2950 and 2955 Cisco IOS Commands
ip igmp snooping vlan immediate-leave
ip igmp snooping vlan immediate-leave
Use the ip igmp snooping vlan 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.
ip igmp snooping vlan vlan-id immediate-leave
no ip igmp snooping vlan vlan-id immediate-leave
Syntax Description
Defaults IGMP Immediate-Leave processing is disabled.
Command Modes Global configuration
Command History
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 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
vlan-id VLAN ID value. The range is 1 to 4094.
Release Modification
12.0(5.2)WC(1) This command was introduced.
Command Description
ip igmp snooping Enables IGMP snooping.
ip igmp snooping vlan mrouter Configures a Layer 2 port as a multicast router port.
show ip igmp snooping Displays the IGMP snooping configuration.
ip igmp snooping vlan static Configures a Layer 2 port as a member of a group.
show mac address-table multicast Displays the Layer 2 multicast entries for a VLAN.

Cisco Catalyst 2950 Specifications

General

Forwarding Bandwidth	8.8 Gbps
Switching Capacity	13.6 Gbps
Forwarding Rate	6.6 Mpps
Weight	3.6 kg
RAM	16 MB
Flash Memory	8 MB
Operating Humidity	10% to 85% non-condensing
Uplink Ports	2 x 10/100/1000Base-T
Dimensions	4.4 cm x 44.5 cm x 24.2 cm
Remote Management Protocol	SNMP, Telnet, HTTP
Features	Quality of Service (QoS), VLAN support
Compliant Standards	IEEE 802.3, IEEE 802.3u, IEEE 802.1D, IEEE 802.1Q, IEEE 802.1p
Status Indicators	system
Operating Temperature	0 to 45°C
Ports	24 x 10/100 Ethernet ports
MAC Address Table Size	8, 192 entries
Power Supply	Internal 100-240V AC, 50-60Hz