IBM 12.1(22)EA6 사용자 설명서

14-11

Cisco Systems Intelligent Gigabit Ethernet Switch Modules for the IBM BladeCenter, Software Configuration Guide

24R9746

Chapter 14 Configuring IGMP Snooping and MVR

Configuring IGMP Snooping

To remove the Layer 2 port from the multicast group, use the no ip igmp snooping vlan vlan-id static
mac-address interface interface-id global configuration command.

This example shows how to statically configure a host on an interface and verify the configuration:

Switch# configure terminal

Switch(config)# ip igmp snooping vlan 1 static 0100.5e00.0203 interface

gigabitethernet0/17

Switch(config)# end

Enabling IGMP Immediate-Leave Processing

When you enable IGMP Immediate-Leave processing, the switch immediately removes a port when it
detects an IGMP version 2 leave message on that port. You should use the Immediate-Leave feature only
when there is a single receiver present on every port in the VLAN.

Note

Immediate Leave is supported with only IGMP version 2 hosts.

Beginning in privileged EXEC mode, follow these steps to enable IGMP Immediate-Leave processing:

To disable IGMP Immediate-Leave on a VLAN, use the no ip igmp snooping vlan vlan-id
immediate-leave global configuration command.

This example shows how to enable IGMP immediate-leave processing on VLAN 130:

Switch# configure terminal

Switch(config)# ip igmp snooping vlan 130 immediate-leave

Switch(config)# end

Step 3

end

Return to privileged EXEC mode.

Step 4

show ip igmp snooping mrouter vlan vlan-id

or
show mac address-table multicast vlan vlan-id

Verify that the member port is a member of the VLAN multicast
group.

Verify the member port and the MAC address

Step 5

copy running-config startup-config

(Optional) Save your entries in the configuration file.

Command

Purpose

Command

Purpose

Step 1

configure terminal

Enter global configuration mode

Step 2

ip igmp snooping vlan vlan-id
immediate-leave

Enable IGMP Immediate-Leave processing on the VLAN interface.