Cisco 4500M User Manual

18-8
Software Configuration Guide—Release 12.2(25)EW
OL-6696-01
Chapter 18 Configuring IGMP Snooping and Filtering
Configuring IGMP Snooping
This example shows how to enable IGMP immediate-leave processing on interface VLAN 200 and to
verify the configuration:
Switch(config)# ip igmp snooping vlan 200 immediate-leave
Configuring immediate leave on vlan 200
Switch(config)# end
Switch# show ip igmp interface vlan 200 | include immediate leave
Immediate leave : Disabled
Switch(config)#
Configuring Explicit Host Tracking
For IGMPv3, EHT is enabled by default and can be disabled on a per-VLAN basis.
To disable EHT processing on a VLAN, perform this task:
This example shows how to disable IGMP EHT on VLAN 200 and to verify the configuration:
Switch(config)# no ip igmp snooping vlan 200 explicit-tracking
Switch(config)#
Switch(config)# end
Switch# show ip igmp snooping vlan 200 | include Explicit host tracking
Explicit host tracking : Disabled
Configuring a Host Statically
Hosts normally join multicast groups dynamically, but you can also configure a host statically on an
interface.
To configure a host statically on an interface, perform this task:
This example shows how to configure a host statically in VLAN 200 on interface FastEthernet 2/11:
Switch(config)# ip igmp snooping vlan 200 static 0100.5e02.0203 interface fastethernet
2/11
Configuring port FastEthernet2/11 on group 0100.5e02.0203 vlan 200
Switch(config)#
Command Purpose
Switch(config)#[no] ip igmp snooping vlan
vlan_ID explicit-tracking
Enables EHT on a VLAN.
The no keyword disables EHT.
Command Purpose
Switch(config-if)# ip igmp snooping vlan
vlan_ID static mac_address interface
interface_num
Configures a host statically in the VLAN.
Note This command cannot be configured to
receive traffic for specific source IP
addresses.

Cisco 4500M Specifications

General

Brand	Cisco
Model	4500M
Category	Network Router
Language	English