PurposeCommand or Action
Enters the global configuration mode.configure terminal
Example:
Device# configure terminal
Step 2
Enables IGMP Immediate Leave on the VLAN interface.
ip igmp snooping vlan vlan-id immediate-leave
Step 3
Example:
Device(config)# ip igmp snooping vlan 21
To disable IGMP Immediate Leave on a VLAN,
use the no ip igmp snooping vlan vlan-id
immediate-leave global configuration command.
Note
immediate-leave
Returns to privileged EXEC mode.end
Example:
Device(config)# end
Step 4
Verifies that Immediate Leave is enabled on the VLAN
interface.
show ip igmp snooping vlan vlan-id
Example:
Device# show ip igmp snooping vlan 21
Step 5
(Optional) Saves your entries in the configuration file.copy running-config startup-config
Example:
Device# copy running-config startup-config
Step 6
Configuring the IGMP Leave Timer (CLI)
Follow these guidelines when configuring the IGMP leave timer:
•
You can configure the leave time globally or on a per-VLAN basis.
•
Configuring the leave time on a VLAN overrides the global setting.
•
The default leave time is 1000 milliseconds.
•
The IGMP configurable leave time is only supported on hosts running IGMP Version 2. IGMP version
2 is the default version for the device.
•
The actual leave latency in the network is usually the configured leave time. However, the leave time
might vary around the configured time, depending on real-time CPU load conditions, network delays
and the amount of traffic sent through the interface.
IP Multicast Routing Configuration Guide, Cisco IOS XE Release 3SE (Catalyst 3650 Switches)
OL-29890-01 65
Configuring IGMP
How to Configure IGMP Snooping
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