Chapter 24
| Multicast Filtering Commands
IGMP Snooping
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Command Mode
Global Configuration
Command Usage
â—† This command configures the IGMP report/query version used by IGMP
snooping. Versions 1 - 3 are all supported, and versions 2 and 3 are backward
compatible, so the switch can operate with other devices, regardless of the
snooping version employed.
â—† If the IGMP snooping version is configured on a VLAN, this setting takes
precedence over the global configuration.
Example
The following configures the global setting for IGMP snooping to version 1.
Console(config)#ip igmp snooping version 1
Console(config)#
ip igmp snooping
version-exclusive
This command discards any received IGMP messages (except for multicast protocol
packets) which use a version different to that currently configured by the ip igmp
snooping version command. Use the no form to disable this feature.
Syntax
ip igmp snooping [vlan vlan-id] version-exclusive
no ip igmp snooping version-exclusive
vlan-id - VLAN ID (Range: 1-4094)
Default Setting
Global: Disabled
VLAN: Disabled
Command Mode
Global Configuration
Command Usage
â—† If version exclusive is disabled on a VLAN, then this setting is based on the
global setting. If it is enabled on a VLAN, then this setting takes precedence
over the global setting.
â—† When this function is disabled, the currently selected version is backward
compatible (see the ip igmp snooping version command.
Example
Console(config)#ip igmp snooping version-exclusive
Console(config)#
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